summaryrefslogtreecommitdiffstats
path: root/unix/tkUnixWm.c
blob: 458c80f8f656145e4487defb1dcd211051899e4c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946
3947
3948
3949
3950
3951
3952
3953
3954
3955
3956
3957
3958
3959
3960
3961
3962
3963
3964
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974
3975
3976
3977
3978
3979
3980
3981
3982
3983
3984
3985
3986
3987
3988
3989
3990
3991
3992
3993
3994
3995
3996
3997
3998
3999
4000
4001
4002
4003
4004
4005
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
4020
4021
4022
4023
4024
4025
4026
4027
4028
4029
4030
4031
4032
4033
4034
4035
4036
4037
4038
4039
4040
4041
4042
4043
4044
4045
4046
4047
4048
4049
4050
4051
4052
4053
4054
4055
4056
4057
4058
4059
4060
4061
4062
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4084
4085
4086
4087
4088
4089
4090
4091
4092
4093
4094
4095
4096
4097
4098
4099
4100
4101
4102
4103
4104
4105
4106
4107
4108
4109
4110
4111
4112
4113
4114
4115
4116
4117
4118
4119
4120
4121
4122
4123
4124
4125
4126
4127
4128
4129
4130
4131
4132
4133
4134
4135
4136
4137
4138
4139
4140
4141
4142
4143
4144
4145
4146
4147
4148
4149
4150
4151
4152
4153
4154
4155
4156
4157
4158
4159
4160
4161
4162
4163
4164
4165
4166
4167
4168
4169
4170
4171
4172
4173
4174
4175
4176
4177
4178
4179
4180
4181
4182
4183
4184
4185
4186
4187
4188
4189
4190
4191
4192
4193
4194
4195
4196
4197
4198
4199
4200
4201
4202
4203
4204
4205
4206
4207
4208
4209
4210
4211
4212
4213
4214
4215
4216
4217
4218
4219
4220
4221
4222
4223
4224
4225
4226
4227
4228
4229
4230
4231
4232
4233
4234
4235
4236
4237
4238
4239
4240
4241
4242
4243
4244
4245
4246
4247
4248
4249
4250
4251
4252
4253
4254
4255
4256
4257
4258
4259
4260
4261
4262
4263
4264
4265
4266
4267
4268
4269
4270
4271
4272
4273
4274
4275
4276
4277
4278
4279
4280
4281
4282
4283
4284
4285
4286
4287
4288
4289
4290
4291
4292
4293
4294
4295
4296
4297
4298
4299
4300
4301
4302
4303
4304
4305
4306
4307
4308
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318
4319
4320
4321
4322
4323
4324
4325
4326
4327
4328
4329
4330
4331
4332
4333
4334
4335
4336
4337
4338
4339
4340
4341
4342
4343
4344
4345
4346
4347
4348
4349
4350
4351
4352
4353
4354
4355
4356
4357
4358
4359
4360
4361
4362
4363
4364
4365
4366
4367
4368
4369
4370
4371
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381
4382
4383
4384
4385
4386
4387
4388
4389
4390
4391
4392
4393
4394
4395
4396
4397
4398
4399
4400
4401
4402
4403
4404
4405
4406
4407
4408
4409
4410
4411
4412
4413
4414
4415
4416
4417
4418
4419
4420
4421
4422
4423
4424
4425
4426
4427
4428
4429
4430
4431
4432
4433
4434
4435
4436
4437
4438
4439
4440
4441
4442
4443
4444
4445
4446
4447
4448
4449
4450
4451
4452
4453
4454
4455
4456
4457
4458
4459
4460
4461
4462
4463
4464
4465
4466
4467
4468
4469
4470
4471
4472
4473
4474
4475
4476
4477
4478
4479
4480
4481
4482
4483
4484
4485
4486
4487
4488
4489
4490
4491
4492
4493
4494
4495
4496
4497
4498
4499
4500
4501
4502
4503
4504
4505
4506
4507
4508
4509
4510
4511
4512
4513
4514
4515
4516
4517
4518
4519
4520
4521
4522
4523
4524
4525
4526
4527
4528
4529
4530
4531
4532
4533
4534
4535
4536
4537
4538
4539
4540
4541
4542
4543
4544
4545
4546
4547
4548
4549
4550
4551
4552
4553
4554
4555
4556
4557
4558
4559
4560
4561
4562
4563
4564
4565
4566
4567
4568
4569
4570
4571
4572
4573
4574
4575
4576
4577
4578
4579
4580
4581
4582
4583
4584
4585
4586
4587
4588
4589
4590
4591
4592
4593
4594
4595
4596
4597
4598
4599
4600
4601
4602
4603
4604
4605
4606
4607
4608
4609
4610
4611
4612
4613
4614
4615
4616
4617
4618
4619
4620
4621
4622
4623
4624
4625
4626
4627
4628
4629
4630
4631
4632
4633
4634
4635
4636
4637
4638
4639
4640
4641
4642
4643
4644
4645
4646
4647
4648
4649
4650
4651
4652
4653
4654
4655
4656
4657
4658
4659
4660
4661
4662
4663
4664
4665
4666
4667
4668
4669
4670
4671
4672
4673
4674
4675
4676
4677
4678
4679
4680
4681
4682
4683
4684
4685
4686
4687
4688
4689
4690
4691
4692
4693
4694
4695
4696
4697
4698
4699
4700
4701
4702
4703
4704
4705
4706
4707
4708
4709
4710
4711
4712
4713
4714
4715
4716
4717
4718
4719
4720
4721
4722
4723
4724
4725
4726
4727
4728
4729
4730
4731
4732
4733
4734
4735
4736
4737
4738
4739
4740
4741
4742
4743
4744
4745
4746
4747
4748
4749
4750
4751
4752
4753
4754
4755
4756
4757
4758
4759
4760
4761
4762
4763
4764
4765
4766
4767
4768
4769
4770
4771
4772
4773
4774
4775
4776
4777
4778
4779
4780
4781
4782
4783
4784
4785
4786
4787
4788
4789
4790
4791
4792
4793
4794
4795
4796
4797
4798
4799
4800
4801
4802
4803
4804
4805
4806
4807
4808
4809
4810
4811
4812
4813
4814
4815
4816
4817
4818
4819
4820
4821
4822
4823
4824
4825
4826
4827
4828
4829
4830
4831
4832
4833
4834
4835
4836
4837
4838
4839
4840
4841
4842
4843
4844
4845
4846
4847
4848
4849
4850
4851
4852
4853
4854
4855
4856
4857
4858
4859
4860
4861
4862
4863
4864
4865
4866
4867
4868
4869
4870
4871
4872
4873
4874
4875
4876
4877
4878
4879
4880
4881
4882
4883
4884
4885
4886
4887
4888
4889
4890
4891
4892
4893
4894
4895
4896
4897
4898
4899
4900
4901
4902
4903
4904
4905
4906
4907
4908
4909
4910
4911
4912
4913
4914
4915
4916
4917
4918
4919
4920
4921
4922
4923
4924
4925
4926
4927
4928
4929
4930
4931
4932
4933
4934
4935
4936
4937
4938
4939
4940
4941
4942
4943
4944
4945
4946
4947
4948
4949
4950
4951
4952
4953
4954
4955
4956
4957
4958
4959
4960
4961
4962
4963
4964
4965
4966
4967
4968
4969
4970
4971
4972
4973
4974
4975
4976
4977
4978
4979
4980
4981
4982
4983
4984
4985
4986
4987
4988
4989
4990
4991
4992
4993
4994
4995
4996
4997
4998
4999
5000
5001
5002
5003
5004
5005
5006
5007
5008
5009
5010
5011
5012
5013
5014
5015
5016
5017
5018
5019
5020
5021
5022
5023
5024
5025
5026
5027
5028
5029
5030
5031
5032
5033
5034
5035
5036
5037
5038
5039
5040
5041
5042
5043
5044
5045
5046
5047
5048
5049
5050
5051
5052
5053
5054
5055
5056
5057
5058
5059
5060
5061
5062
5063
5064
5065
5066
5067
5068
5069
5070
5071
5072
5073
5074
5075
5076
5077
5078
5079
5080
5081
5082
5083
5084
5085
5086
5087
5088
5089
5090
5091
5092
5093
5094
5095
5096
5097
5098
5099
5100
5101
5102
5103
5104
5105
5106
5107
5108
5109
5110
5111
5112
5113
5114
5115
5116
5117
5118
5119
5120
5121
5122
5123
5124
5125
5126
5127
5128
5129
5130
5131
5132
5133
5134
5135
5136
5137
5138
5139
5140
5141
5142
5143
5144
5145
5146
5147
5148
5149
5150
5151
5152
5153
5154
5155
5156
5157
5158
5159
5160
5161
5162
5163
5164
5165
5166
5167
5168
5169
5170
5171
5172
5173
5174
5175
5176
5177
5178
5179
5180
5181
5182
5183
5184
5185
5186
5187
5188
5189
5190
5191
5192
5193
5194
5195
5196
5197
5198
5199
5200
5201
5202
5203
5204
5205
5206
5207
5208
5209
5210
5211
5212
5213
5214
5215
5216
5217
5218
5219
5220
5221
5222
5223
5224
5225
5226
5227
5228
5229
5230
5231
5232
5233
5234
5235
5236
5237
5238
5239
5240
5241
5242
5243
5244
5245
5246
5247
5248
5249
5250
5251
5252
5253
5254
5255
5256
5257
5258
5259
5260
5261
5262
5263
5264
5265
5266
5267
5268
5269
5270
5271
5272
5273
5274
5275
5276
5277
5278
5279
5280
5281
5282
5283
5284
5285
5286
5287
5288
5289
5290
5291
5292
5293
5294
5295
5296
5297
5298
5299
5300
5301
5302
5303
5304
5305
5306
5307
5308
5309
5310
5311
5312
5313
5314
5315
5316
5317
5318
5319
5320
5321
5322
5323
5324
5325
5326
5327
5328
5329
/* 
 * tkUnixWm.c --
 *
 *	This module takes care of the interactions between a Tk-based
 *	application and the window manager.  Among other things, it
 *	implements the "wm" command and passes geometry information
 *	to the window manager.
 *
 * Copyright (c) 1991-1994 The Regents of the University of California.
 * Copyright (c) 1994-1997 Sun Microsystems, Inc.
 *
 * See the file "license.terms" for information on usage and redistribution
 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 *
 * RCS: @(#) $Id: tkUnixWm.c,v 1.19 2002/05/27 20:34:32 mdejong Exp $
 */

#include "tkPort.h"
#include "tkInt.h"
#include "tkUnixInt.h"
#include <errno.h>

/*
 * A data structure of the following type holds information for
 * each window manager protocol (such as WM_DELETE_WINDOW) for
 * which a handler (i.e. a Tcl command) has been defined for a
 * particular top-level window.
 */

typedef struct ProtocolHandler {
    Atom protocol;		/* Identifies the protocol. */
    struct ProtocolHandler *nextPtr;
				/* Next in list of protocol handlers for
				 * the same top-level window, or NULL for
				 * end of list. */
    Tcl_Interp *interp;		/* Interpreter in which to invoke command. */
    char command[4];		/* Tcl command to invoke when a client
				 * message for this protocol arrives. 
				 * The actual size of the structure varies
				 * to accommodate the needs of the actual
				 * command. THIS MUST BE THE LAST FIELD OF
				 * THE STRUCTURE. */
} ProtocolHandler;

#define HANDLER_SIZE(cmdLength) \
    ((unsigned) (sizeof(ProtocolHandler) - 3 + cmdLength))

/*
 * A data structure of the following type holds window-manager-related
 * information for each top-level window in an application.
 */

typedef struct TkWmInfo {
    TkWindow *winPtr;		/* Pointer to main Tk information for
				 * this window. */
    Window reparent;		/* If the window has been reparented, this
				 * gives the ID of the ancestor of the window
				 * that is a child of the root window (may
				 * not be window's immediate parent).  If
				 * the window isn't reparented, this has the
				 * value None. */
    char *title;		/* Title to display in window caption.  If
				 * NULL, use name of widget.  Malloced. */
    char *iconName;		/* Name to display in icon.  Malloced. */
    XWMHints hints;		/* Various pieces of information for
				 * window manager. */
    char *leaderName;		/* Path name of leader of window group
				 * (corresponds to hints.window_group).
				 * Malloc-ed.  Note:  this field doesn't
				 * get updated if leader is destroyed. */
    TkWindow *masterPtr;	/* Master window for TRANSIENT_FOR property,
				 * or NULL. */
    Tk_Window icon;		/* Window to use as icon for this window,
				 * or NULL. */
    Tk_Window iconFor;		/* Window for which this window is icon, or
				 * NULL if this isn't an icon for anyone. */
    int withdrawn;		/* Non-zero means window has been withdrawn. */

    /*
     * In order to support menubars transparently under X, each toplevel
     * window is encased in an additional window, called the wrapper,
     * that holds the toplevel and the menubar, if any.  The information
     * below is used to keep track of the wrapper and the menubar.
     */

    TkWindow *wrapperPtr;	/* Pointer to information about the wrapper.
				 * This is the "real" toplevel window as
				 * seen by the window manager. Although
				 * this is an official Tk window, it
				 * doesn't appear in the application's
				 * window hierarchy.  NULL means that
				 * the wrapper hasn't been created yet. */
    Tk_Window menubar;		/* Pointer to information about the
				 * menubar, or NULL if there is no
				 * menubar for this toplevel. */
    int menuHeight;		/* Amount of vertical space needed for
				 * menubar, measured in pixels.  If
				 * menubar is non-NULL, this is >= 1 (X
				 * servers don't like dimensions of 0). */

    /*
     * Information used to construct an XSizeHints structure for
     * the window manager:
     */

    int sizeHintsFlags;		/* Flags word for XSizeHints structure.
				 * If the PBaseSize flag is set then the
				 * window is gridded;  otherwise it isn't
				 * gridded. */
    int minWidth, minHeight;	/* Minimum dimensions of window, in
				 * grid units, not pixels. */
    int maxWidth, maxHeight;	/* Maximum dimensions of window, in
				 * grid units, not pixels. */
    Tk_Window gridWin;		/* Identifies the window that controls
				 * gridding for this top-level, or NULL if
				 * the top-level isn't currently gridded. */
    int widthInc, heightInc;	/* Increments for size changes (# pixels
				 * per step). */
    struct {
	int x;	/* numerator */
	int y;  /* denominator */
    } minAspect, maxAspect;	/* Min/max aspect ratios for window. */
    int reqGridWidth, reqGridHeight;
				/* The dimensions of the window (in
				 * grid units) requested through
				 * the geometry manager. */
    int gravity;		/* Desired window gravity. */

    /*
     * Information used to manage the size and location of a window.
     */

    int width, height;		/* Desired dimensions of window, specified
				 * in grid units.  These values are
				 * set by the "wm geometry" command and by
				 * ConfigureNotify events (for when wm
				 * resizes window).  -1 means user hasn't
				 * requested dimensions. */
    int x, y;			/* Desired X and Y coordinates for window.
				 * These values are set by "wm geometry",
				 * plus by ConfigureNotify events (when wm
				 * moves window).  These numbers are
				 * different than the numbers stored in
				 * winPtr->changes because (a) they could be
				 * measured from the right or bottom edge
				 * of the screen (see WM_NEGATIVE_X and
				 * WM_NEGATIVE_Y flags) and (b) if the window
				 * has been reparented then they refer to the
				 * parent rather than the window itself. */
    int parentWidth, parentHeight;
				/* Width and height of reparent, in pixels
				 * *including border*.  If window hasn't been
				 * reparented then these will be the outer
				 * dimensions of the window, including
				 * border. */
    int xInParent, yInParent;	/* Offset of wrapperPtr within reparent,
				 * measured in pixels from upper-left outer
				 * corner of reparent's border to upper-left
				 * outer corner of wrapperPtr's border.  If
				 * not reparented then these are zero. */
    int configWidth, configHeight;
				/* Dimensions passed to last request that we
				 * issued to change geometry of the wrapper.
				 * Used to eliminate redundant resize
				 * operations. */

    /*
     * Information about the virtual root window for this top-level,
     * if there is one.
     */

    Window vRoot;		/* Virtual root window for this top-level,
				 * or None if there is no virtual root
				 * window (i.e. just use the screen's root). */
    int vRootX, vRootY;		/* Position of the virtual root inside the
				 * root window.  If the WM_VROOT_OFFSET_STALE
				 * flag is set then this information may be
				 * incorrect and needs to be refreshed from
				 * the X server.  If vRoot is None then these
				 * values are both 0. */
    int vRootWidth, vRootHeight;/* Dimensions of the virtual root window.
				 * If vRoot is None, gives the dimensions
				 * of the containing screen.  This information
				 * is never stale, even though vRootX and
				 * vRootY can be. */

    /*
     * Miscellaneous information.
     */

    ProtocolHandler *protPtr;	/* First in list of protocol handlers for
				 * this window (NULL means none). */
    int cmdArgc;		/* Number of elements in cmdArgv below. */
    CONST char **cmdArgv;	/* Array of strings to store in the
				 * WM_COMMAND property.  NULL means nothing
				 * available. */
    char *clientMachine;	/* String to store in WM_CLIENT_MACHINE
				 * property, or NULL. */
    int flags;			/* Miscellaneous flags, defined below. */
    struct TkWmInfo *nextPtr;	/* Next in list of all top-level windows. */
} WmInfo;

/*
 * Flag values for WmInfo structures:
 *
 * WM_NEVER_MAPPED -		non-zero means window has never been
 *				mapped;  need to update all info when
 *				window is first mapped.
 * WM_UPDATE_PENDING -		non-zero means a call to UpdateGeometryInfo
 *				has already been scheduled for this
 *				window;  no need to schedule another one.
 * WM_NEGATIVE_X -		non-zero means x-coordinate is measured in
 *				pixels from right edge of screen, rather
 *				than from left edge.
 * WM_NEGATIVE_Y -		non-zero means y-coordinate is measured in
 *				pixels up from bottom of screen, rather than
 *				down from top.
 * WM_UPDATE_SIZE_HINTS -	non-zero means that new size hints need to be
 *				propagated to window manager.
 * WM_SYNC_PENDING -		set to non-zero while waiting for the window
 *				manager to respond to some state change.
 * WM_VROOT_OFFSET_STALE -	non-zero means that (x,y) offset information
 *				about the virtual root window is stale and
 *				needs to be fetched fresh from the X server.
 * WM_ABOUT_TO_MAP -		non-zero means that the window is about to
 *				be mapped by TkWmMapWindow.  This is used
 *				by UpdateGeometryInfo to modify its behavior.
 * WM_MOVE_PENDING -		non-zero means the application has requested
 *				a new position for the window, but it hasn't
 *				been reflected through the window manager
 *				yet.
 * WM_COLORMAPS_EXPLICIT -	non-zero means the colormap windows were
 *				set explicitly via "wm colormapwindows".
 * WM_ADDED_TOPLEVEL_COLORMAP - non-zero means that when "wm colormapwindows"
 *				was called the top-level itself wasn't
 *				specified, so we added it implicitly at
 *				the end of the list.
 * WM_WIDTH_NOT_RESIZABLE -	non-zero means that we're not supposed to
 *				allow the user to change the width of the
 *				window (controlled by "wm resizable"
 *				command).
 * WM_HEIGHT_NOT_RESIZABLE -	non-zero means that we're not supposed to
 *				allow the user to change the height of the
 *				window (controlled by "wm resizable"
 *				command).
 */

#define WM_NEVER_MAPPED			1
#define WM_UPDATE_PENDING		2
#define WM_NEGATIVE_X			4
#define WM_NEGATIVE_Y			8
#define WM_UPDATE_SIZE_HINTS		0x10
#define WM_SYNC_PENDING			0x20
#define WM_VROOT_OFFSET_STALE		0x40
#define WM_ABOUT_TO_MAP			0x100
#define WM_MOVE_PENDING			0x200
#define WM_COLORMAPS_EXPLICIT		0x400
#define WM_ADDED_TOPLEVEL_COLORMAP	0x800
#define WM_WIDTH_NOT_RESIZABLE		0x1000
#define WM_HEIGHT_NOT_RESIZABLE		0x2000

/*
 * This module keeps a list of all top-level windows, primarily to
 * simplify the job of Tk_CoordsToWindow.  The list is called 
 * firstWmPtr and is stored in the TkDisplay structure.
 */

/*
 * The following structures are the official type records for geometry
 * management of top-level and menubar windows.
 */

static void		TopLevelReqProc _ANSI_ARGS_((ClientData dummy,
			    Tk_Window tkwin));

static Tk_GeomMgr wmMgrType = {
    "wm",				/* name */
    TopLevelReqProc,			/* requestProc */
    (Tk_GeomLostSlaveProc *) NULL,	/* lostSlaveProc */
};

static void		MenubarReqProc _ANSI_ARGS_((ClientData clientData,
			    Tk_Window tkwin));

static Tk_GeomMgr menubarMgrType = {
    "menubar",				/* name */
    MenubarReqProc,			/* requestProc */
    (Tk_GeomLostSlaveProc *) NULL,	/* lostSlaveProc */
};

/*
 * Structures of the following type are used for communication between
 * WaitForEvent, WaitRestrictProc, and WaitTimeoutProc.
 */

typedef struct WaitRestrictInfo {
    Display *display;		/* Window belongs to this display. */
    WmInfo *wmInfoPtr;
    int type;			/* We only care about this type of event. */
    XEvent *eventPtr;		/* Where to store the event when it's found. */
    int foundEvent;		/* Non-zero means that an event of the
				 * desired type has been found. */
} WaitRestrictInfo;

/*
 * Forward declarations for procedures defined in this file:
 */

static int		ComputeReparentGeometry _ANSI_ARGS_((WmInfo *wmPtr));
static void		ConfigureEvent _ANSI_ARGS_((WmInfo *wmPtr,
			    XConfigureEvent *eventPtr));
static void		CreateWrapper _ANSI_ARGS_((WmInfo *wmPtr));
static void		GetMaxSize _ANSI_ARGS_((WmInfo *wmPtr,
			    int *maxWidthPtr, int *maxHeightPtr));
static void		MenubarDestroyProc _ANSI_ARGS_((ClientData clientData,
			    XEvent *eventPtr));
static int		ParseGeometry _ANSI_ARGS_((Tcl_Interp *interp,
			    char *string, TkWindow *winPtr));
static void		ReparentEvent _ANSI_ARGS_((WmInfo *wmPtr,
			    XReparentEvent *eventPtr));
static void		TkWmStackorderToplevelWrapperMap _ANSI_ARGS_((
			    TkWindow *winPtr,
			    Tcl_HashTable *reparentTable));
static void		TopLevelReqProc _ANSI_ARGS_((ClientData dummy,
			    Tk_Window tkwin));
static void		UpdateCommand _ANSI_ARGS_((TkWindow *winPtr));
static void		UpdateGeometryInfo _ANSI_ARGS_((
			    ClientData clientData));
static void		UpdateHints _ANSI_ARGS_((TkWindow *winPtr));
static void		UpdateSizeHints _ANSI_ARGS_((TkWindow *winPtr));
static void		UpdateVRootGeometry _ANSI_ARGS_((WmInfo *wmPtr));
static void		UpdateWmProtocols _ANSI_ARGS_((WmInfo *wmPtr));
static void		WaitForConfigureNotify _ANSI_ARGS_((TkWindow *winPtr,
			    unsigned long serial));
static int		WaitForEvent _ANSI_ARGS_((Display *display,
			    WmInfo *wmInfoPtr, int type, XEvent *eventPtr));
static void		WaitForMapNotify _ANSI_ARGS_((TkWindow *winPtr,
			    int mapped));
static Tk_RestrictAction
			WaitRestrictProc _ANSI_ARGS_((ClientData clientData,
			    XEvent *eventPtr));
static void		WrapperEventProc _ANSI_ARGS_((ClientData clientData,
			    XEvent *eventPtr));

/*
 *--------------------------------------------------------------
 *
 * TkWmCleanup --
 *
 *	This procedure is invoked to cleanup remaining wm resources
 *	associated with a display.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	All WmInfo structure resources are freed and invalidated.
 *
 *--------------------------------------------------------------
 */

void TkWmCleanup(dispPtr)
    TkDisplay *dispPtr;
{
    WmInfo *wmPtr, *nextPtr;
    for (wmPtr = dispPtr->firstWmPtr; wmPtr != NULL; wmPtr = nextPtr) {
	/*
	 * We can't assume we have access to winPtr's anymore, so some
	 * cleanup requiring winPtr data is avoided.
	 */
	nextPtr = wmPtr->nextPtr;
	if (wmPtr->title != NULL) {
	    ckfree(wmPtr->title);
	}
	if (wmPtr->iconName != NULL) {
	    ckfree(wmPtr->iconName);
	}
	if (wmPtr->leaderName != NULL) {
	    ckfree(wmPtr->leaderName);
	}
	if (wmPtr->menubar != NULL) {
	    Tk_DestroyWindow(wmPtr->menubar);
	}
	if (wmPtr->wrapperPtr != NULL) {
	    Tk_DestroyWindow((Tk_Window) wmPtr->wrapperPtr);
	}
	while (wmPtr->protPtr != NULL) {
	    ProtocolHandler *protPtr;

	    protPtr = wmPtr->protPtr;
	    wmPtr->protPtr = protPtr->nextPtr;
	    Tcl_EventuallyFree((ClientData) protPtr, TCL_DYNAMIC);
	}
	if (wmPtr->cmdArgv != NULL) {
	    ckfree((char *) wmPtr->cmdArgv);
	}
	if (wmPtr->clientMachine != NULL) {
	    ckfree((char *) wmPtr->clientMachine);
	}
	ckfree((char *) wmPtr);
    }
}

/*
 *--------------------------------------------------------------
 *
 * TkWmNewWindow --
 *
 *	This procedure is invoked whenever a new top-level
 *	window is created.  Its job is to initialize the WmInfo
 *	structure for the window.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	A WmInfo structure gets allocated and initialized.
 *
 *--------------------------------------------------------------
 */

void
TkWmNewWindow(winPtr)
    TkWindow *winPtr;		/* Newly-created top-level window. */
{
    register WmInfo *wmPtr;
    TkDisplay *dispPtr = winPtr->dispPtr;

    wmPtr = (WmInfo *) ckalloc(sizeof(WmInfo));
    memset(wmPtr, 0, sizeof(WmInfo));
    wmPtr->winPtr = winPtr;
    wmPtr->reparent = None;
    wmPtr->masterPtr = NULL;
    wmPtr->hints.flags = InputHint | StateHint;
    wmPtr->hints.input = True;
    wmPtr->hints.initial_state = NormalState;
    wmPtr->hints.icon_pixmap = None;
    wmPtr->hints.icon_window = None;
    wmPtr->hints.icon_x = wmPtr->hints.icon_y = 0;
    wmPtr->hints.icon_mask = None;
    wmPtr->hints.window_group = None;
    wmPtr->minWidth = wmPtr->minHeight = 1;

    /*
     * Default the maximum dimensions to the size of the display, minus
     * a guess about how space is needed for window manager decorations.
     */

    wmPtr->widthInc = wmPtr->heightInc = 1;
    wmPtr->minAspect.x = wmPtr->minAspect.y = 1;
    wmPtr->maxAspect.x = wmPtr->maxAspect.y = 1;
    wmPtr->reqGridWidth = wmPtr->reqGridHeight = -1;
    wmPtr->gravity = NorthWestGravity;
    wmPtr->width = -1;
    wmPtr->height = -1;
    wmPtr->x = winPtr->changes.x;
    wmPtr->y = winPtr->changes.y;
    wmPtr->parentWidth = winPtr->changes.width
	    + 2*winPtr->changes.border_width;
    wmPtr->parentHeight = winPtr->changes.height
	    + 2*winPtr->changes.border_width;
    wmPtr->configWidth = -1;
    wmPtr->configHeight = -1;
    wmPtr->vRoot = None;
    wmPtr->flags = WM_NEVER_MAPPED;
    wmPtr->nextPtr = (WmInfo *) dispPtr->firstWmPtr;
    dispPtr->firstWmPtr = wmPtr;
    winPtr->wmInfoPtr = wmPtr;

    UpdateVRootGeometry(wmPtr);

    /*
     * Arrange for geometry requests to be reflected from the window
     * to the window manager.
     */

    Tk_ManageGeometry((Tk_Window) winPtr, &wmMgrType, (ClientData) 0);
}

/*
 *--------------------------------------------------------------
 *
 * TkWmMapWindow --
 *
 *	This procedure is invoked to map a top-level window.  This
 *	module gets a chance to update all window-manager-related
 *	information in properties before the window manager sees
 *	the map event and checks the properties.  It also gets to
 *	decide whether or not to even map the window after all.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Properties of winPtr may get updated to provide up-to-date
 *	information to the window manager.  The window may also get
 *	mapped, but it may not be if this procedure decides that
 *	isn't appropriate (e.g. because the window is withdrawn).
 *
 *--------------------------------------------------------------
 */

void
TkWmMapWindow(winPtr)
    TkWindow *winPtr;		/* Top-level window that's about to
				 * be mapped. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    XTextProperty textProp;
    char *string;

    if (wmPtr->flags & WM_NEVER_MAPPED) {
	Tcl_DString ds;

	wmPtr->flags &= ~WM_NEVER_MAPPED;

	/*
	 * This is the first time this window has ever been mapped.
	 * First create the wrapper window that provides space for a
	 * menubar.
	 */

	if (wmPtr->wrapperPtr == NULL) {
	    CreateWrapper(wmPtr);
	}

	/*
	 * Store all the window-manager-related information for the
	 * window.
	 */

	string = (wmPtr->title != NULL) ? wmPtr->title : winPtr->nameUid;
	Tcl_UtfToExternalDString(NULL, string, -1, &ds);
	string = Tcl_DStringValue(&ds);
	if (XStringListToTextProperty(&(Tcl_DStringValue(&ds)), 1,
		&textProp)  != 0) {
	    XSetWMName(winPtr->display, wmPtr->wrapperPtr->window, &textProp);
	    XFree((char *) textProp.value);
	}
	Tcl_DStringFree(&ds);

	TkWmSetClass(winPtr);

	if (wmPtr->iconName != NULL) {
	    Tcl_UtfToExternalDString(NULL, wmPtr->iconName, -1, &ds);
	    XSetIconName(winPtr->display, wmPtr->wrapperPtr->window,
		    Tcl_DStringValue(&ds));
	    Tcl_DStringFree(&ds);
	}
    
	if (wmPtr->masterPtr != NULL) {
	    XSetTransientForHint(winPtr->display, wmPtr->wrapperPtr->window,
		    wmPtr->masterPtr->wmInfoPtr->wrapperPtr->window);
	}
    
	wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
	UpdateHints(winPtr);
	UpdateWmProtocols(wmPtr);
	if (wmPtr->cmdArgv != NULL) {
	    UpdateCommand(winPtr);
	}
	if (wmPtr->clientMachine != NULL) {
	    Tcl_UtfToExternalDString(NULL, wmPtr->clientMachine, -1, &ds);
	    if (XStringListToTextProperty(&(Tcl_DStringValue(&ds)), 1,
		    &textProp) != 0) {
		XSetWMClientMachine(winPtr->display, wmPtr->wrapperPtr->window,
			&textProp);
		XFree((char *) textProp.value);
	    }
	    Tcl_DStringFree(&ds);
	}
    }
    if (wmPtr->hints.initial_state == WithdrawnState) {
	return;
    }
    if (wmPtr->iconFor != NULL) {
	/*
	 * This window is an icon for somebody else.  Make sure that
	 * the geometry is up-to-date, then return without mapping
	 * the window.
	 */

	if (wmPtr->flags & WM_UPDATE_PENDING) {
	    Tcl_CancelIdleCall(UpdateGeometryInfo, (ClientData) winPtr);
	}
	UpdateGeometryInfo((ClientData) winPtr);
	return;
    }
    wmPtr->flags |= WM_ABOUT_TO_MAP;
    if (wmPtr->flags & WM_UPDATE_PENDING) {
	Tcl_CancelIdleCall(UpdateGeometryInfo, (ClientData) winPtr);
    }
    UpdateGeometryInfo((ClientData) winPtr);
    wmPtr->flags &= ~WM_ABOUT_TO_MAP;

    /*
     * Map the window, then wait to be sure that the window manager has
     * processed the map operation.
     */

    XMapWindow(winPtr->display, wmPtr->wrapperPtr->window);
    if (wmPtr->hints.initial_state == NormalState) {
	WaitForMapNotify(winPtr, 1);
    }
}

/*
 *--------------------------------------------------------------
 *
 * TkWmUnmapWindow --
 *
 *	This procedure is invoked to unmap a top-level window.  The
 *	only thing it does special is to wait for the window actually
 *	to be unmapped.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Unmaps the window.
 *
 *--------------------------------------------------------------
 */

void
TkWmUnmapWindow(winPtr)
    TkWindow *winPtr;		/* Top-level window that's about to
				 * be mapped. */
{
    /*
     * It seems to be important to wait after unmapping a top-level
     * window until the window really gets unmapped.  I don't completely
     * understand all the interactions with the window manager, but if
     * we go on without waiting, and if the window is then mapped again
     * quickly, events seem to get lost so that we think the window isn't
     * mapped when in fact it is mapped.  I suspect that this has something
     * to do with the window manager filtering Map events (and possily not
     * filtering Unmap events?).
     */ 
    XUnmapWindow(winPtr->display, winPtr->wmInfoPtr->wrapperPtr->window);
    WaitForMapNotify(winPtr, 0);
}

/*
 *--------------------------------------------------------------
 *
 * TkWmDeadWindow --
 *
 *	This procedure is invoked when a top-level window is
 *	about to be deleted.  It cleans up the wm-related data
 *	structures for the window.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	The WmInfo structure for winPtr gets freed up.
 *
 *--------------------------------------------------------------
 */

void
TkWmDeadWindow(winPtr)
    TkWindow *winPtr;		/* Top-level window that's being deleted. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    WmInfo *wmPtr2;

    if (wmPtr == NULL) {
	return;
    }
    if ((WmInfo *) winPtr->dispPtr->firstWmPtr == wmPtr) {
	winPtr->dispPtr->firstWmPtr = wmPtr->nextPtr;
    } else {
	register WmInfo *prevPtr;

	for (prevPtr = (WmInfo *) winPtr->dispPtr->firstWmPtr; ; 
                prevPtr = prevPtr->nextPtr) {
	    if (prevPtr == NULL) {
		panic("couldn't unlink window in TkWmDeadWindow");
	    }
	    if (prevPtr->nextPtr == wmPtr) {
		prevPtr->nextPtr = wmPtr->nextPtr;
		break;
	    }
	}
    }
    if (wmPtr->title != NULL) {
	ckfree(wmPtr->title);
    }
    if (wmPtr->iconName != NULL) {
	ckfree(wmPtr->iconName);
    }
    if (wmPtr->hints.flags & IconPixmapHint) {
	Tk_FreeBitmap(winPtr->display, wmPtr->hints.icon_pixmap);
    }
    if (wmPtr->hints.flags & IconMaskHint) {
	Tk_FreeBitmap(winPtr->display, wmPtr->hints.icon_mask);
    }
    if (wmPtr->leaderName != NULL) {
	ckfree(wmPtr->leaderName);
    }
    if (wmPtr->icon != NULL) {
	wmPtr2 = ((TkWindow *) wmPtr->icon)->wmInfoPtr;
	wmPtr2->iconFor = NULL;
	wmPtr2->withdrawn = 1;
    }
    if (wmPtr->iconFor != NULL) {
	wmPtr2 = ((TkWindow *) wmPtr->iconFor)->wmInfoPtr;
	wmPtr2->icon = NULL;
	wmPtr2->hints.flags &= ~IconWindowHint;
	UpdateHints((TkWindow *) wmPtr->iconFor);
    }
    if (wmPtr->menubar != NULL) {
	Tk_DestroyWindow(wmPtr->menubar);
    }
    if (wmPtr->wrapperPtr != NULL) {
	/*
	 * The rest of Tk doesn't know that we reparent the toplevel
	 * inside the wrapper, so reparent it back out again before
	 * deleting the wrapper; otherwise the toplevel will get deleted
	 * twice (once implicitly by the deletion of the wrapper).
	 */

	XUnmapWindow(winPtr->display, winPtr->window);
	XReparentWindow(winPtr->display, winPtr->window,
		XRootWindow(winPtr->display, winPtr->screenNum), 0, 0);
	Tk_DestroyWindow((Tk_Window) wmPtr->wrapperPtr);
    }
    while (wmPtr->protPtr != NULL) {
	ProtocolHandler *protPtr;

	protPtr = wmPtr->protPtr;
	wmPtr->protPtr = protPtr->nextPtr;
	Tcl_EventuallyFree((ClientData) protPtr, TCL_DYNAMIC);
    }
    if (wmPtr->cmdArgv != NULL) {
	ckfree((char *) wmPtr->cmdArgv);
    }
    if (wmPtr->clientMachine != NULL) {
	ckfree((char *) wmPtr->clientMachine);
    }
    if (wmPtr->flags & WM_UPDATE_PENDING) {
	Tcl_CancelIdleCall(UpdateGeometryInfo, (ClientData) winPtr);
    }
    ckfree((char *) wmPtr);
    winPtr->wmInfoPtr = NULL;
}

/*
 *--------------------------------------------------------------
 *
 * TkWmSetClass --
 *
 *	This procedure is invoked whenever a top-level window's
 *	class is changed.  If the window has been mapped then this
 *	procedure updates the window manager property for the
 *	class.  If the window hasn't been mapped, the update is
 *	deferred until just before the first mapping.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	A window property may get updated.
 *
 *--------------------------------------------------------------
 */

void
TkWmSetClass(winPtr)
    TkWindow *winPtr;		/* Newly-created top-level window. */
{
    if (winPtr->wmInfoPtr->flags & WM_NEVER_MAPPED) {
	return;
    }

    if (winPtr->classUid != NULL) {
	XClassHint *classPtr;
	Tcl_DString name, class;

	Tcl_UtfToExternalDString(NULL, winPtr->nameUid, -1, &name);
	Tcl_UtfToExternalDString(NULL, winPtr->classUid, -1, &class);
	classPtr = XAllocClassHint();
	classPtr->res_name = Tcl_DStringValue(&name);
	classPtr->res_class = Tcl_DStringValue(&class);
	XSetClassHint(winPtr->display, winPtr->wmInfoPtr->wrapperPtr->window,
		classPtr);
	XFree((char *) classPtr);
	Tcl_DStringFree(&name);
	Tcl_DStringFree(&class);
    }
}

/*
 *----------------------------------------------------------------------
 *
 * Tk_WmCmd --
 *
 *	This procedure is invoked to process the "wm" Tcl command.
 *	See the user documentation for details on what it does.
 *
 * Results:
 *	A standard Tcl result.
 *
 * Side effects:
 *	See the user documentation.
 *
 *----------------------------------------------------------------------
 */

	/* ARGSUSED */
int
Tk_WmCmd(clientData, interp, argc, argv)
    ClientData clientData;	/* Main window associated with
				 * interpreter. */
    Tcl_Interp *interp;		/* Current interpreter. */
    int argc;			/* Number of arguments. */
    char **argv;		/* Argument strings. */
{
    Tk_Window tkwin = (Tk_Window) clientData;
    TkWindow *winPtr;
    register WmInfo *wmPtr;
    int c;
    size_t length;
    TkDisplay *dispPtr = ((TkWindow *) tkwin)->dispPtr;

    if (argc < 2) {
	wrongNumArgs:
	Tcl_AppendResult(interp, "wrong # args: should be \"",
		argv[0], " option window ?arg ...?\"", (char *) NULL);
	return TCL_ERROR;
    }
    c = argv[1][0];
    length = strlen(argv[1]);
    if ((c == 't') && (strncmp(argv[1], "tracing", length) == 0)
	    && (length >= 3)) {
	if ((argc != 2) && (argc != 3)) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0], " tracing ?boolean?\"", (char *) NULL);
	    return TCL_ERROR;
	}
	if (argc == 2) {
	    Tcl_SetResult(interp, ((dispPtr->wmTracing) ? "on" : "off"), 
                    TCL_STATIC);
	    return TCL_OK;
	}
	return Tcl_GetBoolean(interp, argv[2], &dispPtr->wmTracing);
    }

    if (argc < 3) {
	goto wrongNumArgs;
    }
    winPtr = (TkWindow *) Tk_NameToWindow(interp, argv[2], tkwin);
    if (winPtr == NULL) {
	return TCL_ERROR;
    }
    if (!Tk_IsTopLevel(winPtr)) {
	Tcl_AppendResult(interp, "window \"", winPtr->pathName,
		"\" isn't a top-level window", (char *) NULL);
	return TCL_ERROR;
    }
    wmPtr = winPtr->wmInfoPtr;
    if ((c == 'a') && (strncmp(argv[1], "aspect", length) == 0)) {
	int numer1, denom1, numer2, denom2;

	if ((argc != 3) && (argc != 7)) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0], " aspect window ?minNumer minDenom ",
		    "maxNumer maxDenom?\"", (char *) NULL);
	    return TCL_ERROR;
	}
	if (argc == 3) {
	    if (wmPtr->sizeHintsFlags & PAspect) {
		char buf[TCL_INTEGER_SPACE * 4];
		
		sprintf(buf, "%d %d %d %d", wmPtr->minAspect.x,
			wmPtr->minAspect.y, wmPtr->maxAspect.x,
			wmPtr->maxAspect.y);
		Tcl_SetResult(interp, buf, TCL_VOLATILE);
	    }
	    return TCL_OK;
	}
	if (*argv[3] == '\0') {
	    wmPtr->sizeHintsFlags &= ~PAspect;
	} else {
	    if ((Tcl_GetInt(interp, argv[3], &numer1) != TCL_OK)
		    || (Tcl_GetInt(interp, argv[4], &denom1) != TCL_OK)
		    || (Tcl_GetInt(interp, argv[5], &numer2) != TCL_OK)
		    || (Tcl_GetInt(interp, argv[6], &denom2) != TCL_OK)) {
		return TCL_ERROR;
	    }
	    if ((numer1 <= 0) || (denom1 <= 0) || (numer2 <= 0) ||
		    (denom2 <= 0)) {
		Tcl_SetResult(interp, "aspect number can't be <= 0",
			TCL_STATIC);
		return TCL_ERROR;
	    }
	    wmPtr->minAspect.x = numer1;
	    wmPtr->minAspect.y = denom1;
	    wmPtr->maxAspect.x = numer2;
	    wmPtr->maxAspect.y = denom2;
	    wmPtr->sizeHintsFlags |= PAspect;
	}
	wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
	goto updateGeom;
    } else if ((c == 'c') && (strncmp(argv[1], "client", length) == 0)
	    && (length >= 2)) {
	if ((argc != 3) && (argc != 4)) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0], " client window ?name?\"",
		    (char *) NULL);
	    return TCL_ERROR;
	}
	if (argc == 3) {
	    if (wmPtr->clientMachine != NULL) {
		Tcl_SetResult(interp, wmPtr->clientMachine, TCL_STATIC);
	    }
	    return TCL_OK;
	}
	if (argv[3][0] == 0) {
	    if (wmPtr->clientMachine != NULL) {
		ckfree((char *) wmPtr->clientMachine);
		wmPtr->clientMachine = NULL;
		if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
		    XDeleteProperty(winPtr->display, wmPtr->wrapperPtr->window,
			    Tk_InternAtom((Tk_Window) winPtr,
			    "WM_CLIENT_MACHINE"));
		}
	    }
	    return TCL_OK;
	}
	if (wmPtr->clientMachine != NULL) {
	    ckfree((char *) wmPtr->clientMachine);
	}
	wmPtr->clientMachine = (char *)
		ckalloc((unsigned) (strlen(argv[3]) + 1));
	strcpy(wmPtr->clientMachine, argv[3]);
	if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
	    XTextProperty textProp;
	    Tcl_DString ds;

	    Tcl_UtfToExternalDString(NULL, wmPtr->clientMachine, -1, &ds);
	    if (XStringListToTextProperty(&(Tcl_DStringValue(&ds)), 1,
		    &textProp) != 0) {
		XSetWMClientMachine(winPtr->display, wmPtr->wrapperPtr->window,
			&textProp);
		XFree((char *) textProp.value);
	    }
	    Tcl_DStringFree(&ds);
	}
    } else if ((c == 'c') && (strncmp(argv[1], "colormapwindows", length) == 0)
	    && (length >= 3)) {
	Window *cmapList;
	TkWindow *winPtr2;
	int count, i, windowArgc, gotToplevel;
	CONST char **windowArgv;
	char buffer[20];

	if ((argc != 3) && (argc != 4)) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0], " colormapwindows window ?windowList?\"",
		    (char *) NULL);
	    return TCL_ERROR;
	}
	Tk_MakeWindowExist((Tk_Window) winPtr);
	if (wmPtr->wrapperPtr == NULL) {
	    CreateWrapper(wmPtr);
	}
	if (argc == 3) {
	    if (XGetWMColormapWindows(winPtr->display,
		    wmPtr->wrapperPtr->window, &cmapList, &count) == 0) {
		return TCL_OK;
	    }
	    for (i = 0; i < count; i++) {
		if ((i == (count-1))
			&& (wmPtr->flags & WM_ADDED_TOPLEVEL_COLORMAP)) {
		    break;
		}
	        winPtr2  = (TkWindow *) Tk_IdToWindow(winPtr->display,
			cmapList[i]);
		if (winPtr2 == NULL) {
		    sprintf(buffer, "0x%lx", cmapList[i]);
		    Tcl_AppendElement(interp, buffer);
		} else {
		    Tcl_AppendElement(interp, winPtr2->pathName);
		}
	    }
	    XFree((char *) cmapList);
	    return TCL_OK;
	}
	if (Tcl_SplitList(interp, argv[3], &windowArgc, &windowArgv)
		!= TCL_OK) {
	    return TCL_ERROR;
	}
	cmapList = (Window *) ckalloc((unsigned)
		((windowArgc+1)*sizeof(Window)));
	gotToplevel = 0;
	for (i = 0; i < windowArgc; i++) {
	    winPtr2 = (TkWindow *) Tk_NameToWindow(interp, windowArgv[i],
		    tkwin);
	    if (winPtr2 == NULL) {
		ckfree((char *) cmapList);
		ckfree((char *) windowArgv);
		return TCL_ERROR;
	    }
	    if (winPtr2 == winPtr) {
		gotToplevel = 1;
	    }
	    if (winPtr2->window == None) {
		Tk_MakeWindowExist((Tk_Window) winPtr2);
	    }
	    cmapList[i] = winPtr2->window;
	}
	if (!gotToplevel) {
	    wmPtr->flags |= WM_ADDED_TOPLEVEL_COLORMAP;
	    cmapList[windowArgc] = wmPtr->wrapperPtr->window;
	    windowArgc++;
	} else {
	    wmPtr->flags &= ~WM_ADDED_TOPLEVEL_COLORMAP;
	}
	wmPtr->flags |= WM_COLORMAPS_EXPLICIT;
	XSetWMColormapWindows(winPtr->display, wmPtr->wrapperPtr->window,
		cmapList, windowArgc);
	ckfree((char *) cmapList);
	ckfree((char *) windowArgv);
	return TCL_OK;
    } else if ((c == 'c') && (strncmp(argv[1], "command", length) == 0)
	    && (length >= 3)) {
	int cmdArgc;
	CONST char **cmdArgv;

	if ((argc != 3) && (argc != 4)) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0], " command window ?value?\"",
		    (char *) NULL);
	    return TCL_ERROR;
	}
	if (argc == 3) {
	    if (wmPtr->cmdArgv != NULL) {
		Tcl_SetResult(interp,
			Tcl_Merge(wmPtr->cmdArgc, wmPtr->cmdArgv),
			TCL_DYNAMIC);
	    }
	    return TCL_OK;
	}
	if (argv[3][0] == 0) {
	    if (wmPtr->cmdArgv != NULL) {
		ckfree((char *) wmPtr->cmdArgv);
		wmPtr->cmdArgv = NULL;
		if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
		    XDeleteProperty(winPtr->display, wmPtr->wrapperPtr->window,
			    Tk_InternAtom((Tk_Window) winPtr, "WM_COMMAND"));
		}
	    }
	    return TCL_OK;
	}
	if (Tcl_SplitList(interp, argv[3], &cmdArgc, &cmdArgv) != TCL_OK) {
	    return TCL_ERROR;
	}
	if (wmPtr->cmdArgv != NULL) {
	    ckfree((char *) wmPtr->cmdArgv);
	}
	wmPtr->cmdArgc = cmdArgc;
	wmPtr->cmdArgv = cmdArgv;
	if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
	    UpdateCommand(winPtr);
	}
    } else if ((c == 'd') && (strncmp(argv[1], "deiconify", length) == 0)) {
	if (argc != 3) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0], " deiconify window\"", (char *) NULL);
	    return TCL_ERROR;
	}
	if (wmPtr->iconFor != NULL) {
	    Tcl_AppendResult(interp, "can't deiconify ", argv[2],
		    ": it is an icon for ", Tk_PathName(wmPtr->iconFor),
		    (char *) NULL);
	    return TCL_ERROR;
	}
	(void) TkpWmSetState(winPtr, NormalState);
    } else if ((c == 'f') && (strncmp(argv[1], "focusmodel", length) == 0)
	    && (length >= 2)) {
	if ((argc != 3) && (argc != 4)) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0], " focusmodel window ?active|passive?\"",
		    (char *) NULL);
	    return TCL_ERROR;
	}
	if (argc == 3) {
	    Tcl_SetResult(interp, (wmPtr->hints.input ? "passive" : "active"),
		    TCL_STATIC);
	    return TCL_OK;
	}
	c = argv[3][0];
	length = strlen(argv[3]);
	if ((c == 'a') && (strncmp(argv[3], "active", length) == 0)) {
	    wmPtr->hints.input = False;
	} else if ((c == 'p') && (strncmp(argv[3], "passive", length) == 0)) {
	    wmPtr->hints.input = True;
	} else {
	    Tcl_AppendResult(interp, "bad argument \"", argv[3],
		    "\": must be active or passive", (char *) NULL);
	    return TCL_ERROR;
	}
	UpdateHints(winPtr);
    } else if ((c == 'f') && (strncmp(argv[1], "frame", length) == 0)
	    && (length >= 2)) {
	Window window;
	char buf[TCL_INTEGER_SPACE];

	if (argc != 3) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0], " frame window\"", (char *) NULL);
	    return TCL_ERROR;
	}
	window = wmPtr->reparent;
	if (window == None) {
	    window = Tk_WindowId((Tk_Window) winPtr);
	}
	sprintf(buf, "0x%x", (unsigned int) window);
	Tcl_SetResult(interp, buf, TCL_VOLATILE);
    } else if ((c == 'g') && (strncmp(argv[1], "geometry", length) == 0)
	    && (length >= 2)) {
	char xSign, ySign;
	int width, height;

	if ((argc != 3) && (argc != 4)) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0], " geometry window ?newGeometry?\"",
		    (char *) NULL);
	    return TCL_ERROR;
	}
	if (argc == 3) {
	    char buf[16 + TCL_INTEGER_SPACE * 4];
	    
	    xSign = (wmPtr->flags & WM_NEGATIVE_X) ? '-' : '+';
	    ySign = (wmPtr->flags & WM_NEGATIVE_Y) ? '-' : '+';
	    if (wmPtr->gridWin != NULL) {
		width = wmPtr->reqGridWidth + (winPtr->changes.width
			- winPtr->reqWidth)/wmPtr->widthInc;
		height = wmPtr->reqGridHeight + (winPtr->changes.height
			- winPtr->reqHeight)/wmPtr->heightInc;
	    } else {
		width = winPtr->changes.width;
		height = winPtr->changes.height;
	    }
	    sprintf(buf, "%dx%d%c%d%c%d", width, height, xSign, wmPtr->x,
		    ySign, wmPtr->y);
	    Tcl_SetResult(interp, buf, TCL_VOLATILE);
	    return TCL_OK;
	}
	if (*argv[3] == '\0') {
	    wmPtr->width = -1;
	    wmPtr->height = -1;
	    goto updateGeom;
	}
	return ParseGeometry(interp, argv[3], winPtr);
    } else if ((c == 'g') && (strncmp(argv[1], "grid", length) == 0)
	    && (length >= 3)) {
	int reqWidth, reqHeight, widthInc, heightInc;

	if ((argc != 3) && (argc != 7)) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0], " grid window ?baseWidth baseHeight ",
		    "widthInc heightInc?\"", (char *) NULL);
	    return TCL_ERROR;
	}
	if (argc == 3) {
	    if (wmPtr->sizeHintsFlags & PBaseSize) {
		char buf[TCL_INTEGER_SPACE * 4];

		sprintf(buf, "%d %d %d %d", wmPtr->reqGridWidth,
			wmPtr->reqGridHeight, wmPtr->widthInc,
			wmPtr->heightInc);
		Tcl_SetResult(interp, buf, TCL_VOLATILE);
	    }
	    return TCL_OK;
	}
	if (*argv[3] == '\0') {
	    /*
	     * Turn off gridding and reset the width and height
	     * to make sense as ungridded numbers.
	     */

	    wmPtr->sizeHintsFlags &= ~(PBaseSize|PResizeInc);
	    if (wmPtr->width != -1) {
		wmPtr->width = winPtr->reqWidth + (wmPtr->width
			- wmPtr->reqGridWidth)*wmPtr->widthInc;
		wmPtr->height = winPtr->reqHeight + (wmPtr->height
			- wmPtr->reqGridHeight)*wmPtr->heightInc;
	    }
	    wmPtr->widthInc = 1;
	    wmPtr->heightInc = 1;
	} else {
	    if ((Tcl_GetInt(interp, argv[3], &reqWidth) != TCL_OK)
		    || (Tcl_GetInt(interp, argv[4], &reqHeight) != TCL_OK)
		    || (Tcl_GetInt(interp, argv[5], &widthInc) != TCL_OK)
		    || (Tcl_GetInt(interp, argv[6], &heightInc) != TCL_OK)) {
		return TCL_ERROR;
	    }
	    if (reqWidth < 0) {
		Tcl_SetResult(interp, "baseWidth can't be < 0", TCL_STATIC);
		return TCL_ERROR;
	    }
	    if (reqHeight < 0) {
		Tcl_SetResult(interp, "baseHeight can't be < 0", TCL_STATIC);
		return TCL_ERROR;
	    }
	    if (widthInc < 0) {
		Tcl_SetResult(interp, "widthInc can't be < 0", TCL_STATIC);
		return TCL_ERROR;
	    }
	    if (heightInc < 0) {
		Tcl_SetResult(interp, "heightInc can't be < 0", TCL_STATIC);
		return TCL_ERROR;
	    }
	    Tk_SetGrid((Tk_Window) winPtr, reqWidth, reqHeight, widthInc,
		    heightInc);
	}
	wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
	goto updateGeom;
    } else if ((c == 'g') && (strncmp(argv[1], "group", length) == 0)
	    && (length >= 3)) {
	Tk_Window tkwin2;
	WmInfo *wmPtr2;

	if ((argc != 3) && (argc != 4)) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0], " group window ?pathName?\"",
		    (char *) NULL);
	    return TCL_ERROR;
	}
	if (argc == 3) {
	    if (wmPtr->hints.flags & WindowGroupHint) {
		Tcl_SetResult(interp, wmPtr->leaderName, TCL_STATIC);
	    }
	    return TCL_OK;
	}
	if (*argv[3] == '\0') {
	    wmPtr->hints.flags &= ~WindowGroupHint;
	    if (wmPtr->leaderName != NULL) {
		ckfree(wmPtr->leaderName);
	    }
	    wmPtr->leaderName = NULL;
	} else {
	    tkwin2 = Tk_NameToWindow(interp, argv[3], tkwin);
	    if (tkwin2 == NULL) {
		return TCL_ERROR;
	    }
	    while (!Tk_IsTopLevel(tkwin2)) {
		/*
		 * Ensure that the group leader is actually a Tk toplevel.
		 */

		tkwin2 = Tk_Parent(tkwin2);
	    }
	    Tk_MakeWindowExist(tkwin2);
	    wmPtr2 = ((TkWindow *) tkwin2)->wmInfoPtr;
	    if (wmPtr2->wrapperPtr == NULL) {
		CreateWrapper(wmPtr2);
	    }
	    if (wmPtr->leaderName != NULL) {
		ckfree(wmPtr->leaderName);
	    }
	    wmPtr->hints.window_group = Tk_WindowId(wmPtr2->wrapperPtr);
	    wmPtr->hints.flags |= WindowGroupHint;
	    wmPtr->leaderName = ckalloc((unsigned) (strlen(argv[3])+1));
	    strcpy(wmPtr->leaderName, argv[3]);
	}
	UpdateHints(winPtr);
    } else if ((c == 'i') && (strncmp(argv[1], "iconbitmap", length) == 0)
	    && (length >= 5)) {
	Pixmap pixmap;

	if ((argc != 3) && (argc != 4)) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0], " iconbitmap window ?bitmap?\"",
		    (char *) NULL);
	    return TCL_ERROR;
	}
	if (argc == 3) {
	    if (wmPtr->hints.flags & IconPixmapHint) {
		Tcl_SetResult(interp,
			Tk_NameOfBitmap(winPtr->display, wmPtr->hints.icon_pixmap),
			TCL_STATIC);
	    }
	    return TCL_OK;
	}
	if (*argv[3] == '\0') {
	    if (wmPtr->hints.icon_pixmap != None) {
		Tk_FreeBitmap(winPtr->display, wmPtr->hints.icon_pixmap);
		wmPtr->hints.icon_pixmap = None;
	    }
	    wmPtr->hints.flags &= ~IconPixmapHint;
	} else {
	    pixmap = Tk_GetBitmap(interp, (Tk_Window) winPtr,
		    Tk_GetUid(argv[3]));
	    if (pixmap == None) {
		return TCL_ERROR;
	    }
	    wmPtr->hints.icon_pixmap = pixmap;
	    wmPtr->hints.flags |= IconPixmapHint;
	}
	UpdateHints(winPtr);
    } else if ((c == 'i') && (strncmp(argv[1], "iconify", length) == 0)
	    && (length >= 5)) {
	if (argc != 3) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0], " iconify window\"", (char *) NULL);
	    return TCL_ERROR;
	}
	if (Tk_Attributes((Tk_Window) winPtr)->override_redirect) {
	    Tcl_AppendResult(interp, "can't iconify \"", winPtr->pathName,
		    "\": override-redirect flag is set", (char *) NULL);
	    return TCL_ERROR;
	}
	if (wmPtr->masterPtr != NULL) {
	    Tcl_AppendResult(interp, "can't iconify \"", winPtr->pathName,
		    "\": it is a transient", (char *) NULL);
	    return TCL_ERROR;
	}
	if (wmPtr->iconFor != NULL) {
	    Tcl_AppendResult(interp, "can't iconify ", argv[2],
		    ": it is an icon for ", Tk_PathName(wmPtr->iconFor),
		   (char *) NULL);
	    return TCL_ERROR;
	}
	if (TkpWmSetState(winPtr, IconicState) == 0) {
	    Tcl_SetResult(interp,
	            "couldn't send iconify message to window manager",
	            TCL_STATIC);
	    return TCL_ERROR;
	}
    } else if ((c == 'i') && (strncmp(argv[1], "iconmask", length) == 0)
	    && (length >= 5)) {
	Pixmap pixmap;

	if ((argc != 3) && (argc != 4)) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0], " iconmask window ?bitmap?\"",
		    (char *) NULL);
	    return TCL_ERROR;
	}
	if (argc == 3) {
	    if (wmPtr->hints.flags & IconMaskHint) {
		Tcl_SetResult(interp,
			Tk_NameOfBitmap(winPtr->display, wmPtr->hints.icon_mask),
			TCL_STATIC);
	    }
	    return TCL_OK;
	}
	if (*argv[3] == '\0') {
	    if (wmPtr->hints.icon_mask != None) {
		Tk_FreeBitmap(winPtr->display, wmPtr->hints.icon_mask);
	    }
	    wmPtr->hints.flags &= ~IconMaskHint;
	} else {
	    pixmap = Tk_GetBitmap(interp, tkwin, Tk_GetUid(argv[3]));
	    if (pixmap == None) {
		return TCL_ERROR;
	    }
	    wmPtr->hints.icon_mask = pixmap;
	    wmPtr->hints.flags |= IconMaskHint;
	}
	UpdateHints(winPtr);
    } else if ((c == 'i') && (strncmp(argv[1], "iconname", length) == 0)
	    && (length >= 5)) {
	if (argc > 4) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0], " iconname window ?newName?\"", (char *) NULL);
	    return TCL_ERROR;
	}
	if (argc == 3) {
	    Tcl_SetResult(interp,
		    ((wmPtr->iconName != NULL) ? wmPtr->iconName : ""),
		    TCL_STATIC);
	    return TCL_OK;
	} else {
	    if (wmPtr->iconName != NULL) {
		ckfree((char *) wmPtr->iconName);
	    }
	    wmPtr->iconName = ckalloc((unsigned) (strlen(argv[3]) + 1));
	    strcpy(wmPtr->iconName, argv[3]);
	    if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
		Tcl_DString ds;

		Tcl_UtfToExternalDString(NULL, wmPtr->iconName, -1, &ds);
		XSetIconName(winPtr->display, wmPtr->wrapperPtr->window,
			Tcl_DStringValue(&ds));
		Tcl_DStringFree(&ds);
	    }
	}
    } else if ((c == 'i') && (strncmp(argv[1], "iconposition", length) == 0)
	    && (length >= 5)) {
	int x, y;

	if ((argc != 3) && (argc != 5)) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0], " iconposition window ?x y?\"",
		    (char *) NULL);
	    return TCL_ERROR;
	}
	if (argc == 3) {
	    if (wmPtr->hints.flags & IconPositionHint) {
		char buf[TCL_INTEGER_SPACE * 2];

		sprintf(buf, "%d %d", wmPtr->hints.icon_x,
			wmPtr->hints.icon_y);
		Tcl_SetResult(interp, buf, TCL_VOLATILE);
	    }
	    return TCL_OK;
	}
	if (*argv[3] == '\0') {
	    wmPtr->hints.flags &= ~IconPositionHint;
	} else {
	    if ((Tcl_GetInt(interp, argv[3], &x) != TCL_OK)
		    || (Tcl_GetInt(interp, argv[4], &y) != TCL_OK)){
		return TCL_ERROR;
	    }
	    wmPtr->hints.icon_x = x;
	    wmPtr->hints.icon_y = y;
	    wmPtr->hints.flags |= IconPositionHint;
	}
	UpdateHints(winPtr);
    } else if ((c == 'i') && (strncmp(argv[1], "iconwindow", length) == 0)
	    && (length >= 5)) {
	Tk_Window tkwin2;
	WmInfo *wmPtr2;
	XSetWindowAttributes atts;

	if ((argc != 3) && (argc != 4)) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0], " iconwindow window ?pathName?\"",
		    (char *) NULL);
	    return TCL_ERROR;
	}
	if (argc == 3) {
	    if (wmPtr->icon != NULL) {
		Tcl_SetResult(interp, Tk_PathName(wmPtr->icon), TCL_STATIC);
	    }
	    return TCL_OK;
	}
	if (*argv[3] == '\0') {
	    wmPtr->hints.flags &= ~IconWindowHint;
	    if (wmPtr->icon != NULL) {
		/*
		 * Remove the icon window relationship.  In principle we
		 * should also re-enable button events for the window, but
		 * this doesn't work in general because the window manager
		 * is probably selecting on them (we'll get an error if
		 * we try to re-enable the events).  So, just leave the
		 * icon window event-challenged;  the user will have to
		 * recreate it if they want button events.
		 */

		wmPtr2 = ((TkWindow *) wmPtr->icon)->wmInfoPtr;
		wmPtr2->iconFor = NULL;
		wmPtr2->withdrawn = 1;
		wmPtr2->hints.initial_state = WithdrawnState;
	    }
	    wmPtr->icon = NULL;
	} else {
	    tkwin2 = Tk_NameToWindow(interp, argv[3], tkwin);
	    if (tkwin2 == NULL) {
		return TCL_ERROR;
	    }
	    if (!Tk_IsTopLevel(tkwin2)) {
		Tcl_AppendResult(interp, "can't use ", argv[3],
			" as icon window: not at top level", (char *) NULL);
		return TCL_ERROR;
	    }
	    wmPtr2 = ((TkWindow *) tkwin2)->wmInfoPtr;
	    if (wmPtr2->iconFor != NULL) {
		Tcl_AppendResult(interp, argv[3], " is already an icon for ",
			Tk_PathName(wmPtr2->iconFor), (char *) NULL);
		return TCL_ERROR;
	    }
	    if (wmPtr->icon != NULL) {
		WmInfo *wmPtr3 = ((TkWindow *) wmPtr->icon)->wmInfoPtr;
		wmPtr3->iconFor = NULL;
		wmPtr3->withdrawn = 1;
		wmPtr3->hints.initial_state = WithdrawnState;
	    }

	    /*
	     * Disable button events in the icon window:  some window
	     * managers (like olvwm) want to get the events themselves,
	     * but X only allows one application at a time to receive
	     * button events for a window.
	     */

	    atts.event_mask = Tk_Attributes(tkwin2)->event_mask
		    & ~ButtonPressMask;
	    Tk_ChangeWindowAttributes(tkwin2, CWEventMask, &atts);
	    Tk_MakeWindowExist(tkwin2);
	    if (wmPtr2->wrapperPtr == NULL) {
		CreateWrapper(wmPtr2);
	    }
	    wmPtr->hints.icon_window = Tk_WindowId(wmPtr2->wrapperPtr);
	    wmPtr->hints.flags |= IconWindowHint;
	    wmPtr->icon = tkwin2;
	    wmPtr2->iconFor = (Tk_Window) winPtr;
	    if (!wmPtr2->withdrawn && !(wmPtr2->flags & WM_NEVER_MAPPED)) {
		wmPtr2->withdrawn = 0;
		if (XWithdrawWindow(Tk_Display(tkwin2),
			Tk_WindowId(wmPtr2->wrapperPtr),
			Tk_ScreenNumber(tkwin2)) == 0) {
		    Tcl_SetResult(interp,
			    "couldn't send withdraw message to window manager",
			    TCL_STATIC);
		    return TCL_ERROR;
		}
		WaitForMapNotify((TkWindow *) tkwin2, 0);
	    }
	}
	UpdateHints(winPtr);
    } else if ((c == 'm') && (strncmp(argv[1], "maxsize", length) == 0)
	    && (length >= 2)) {
	int width, height;
	if ((argc != 3) && (argc != 5)) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0], " maxsize window ?width height?\"", (char *) NULL);
	    return TCL_ERROR;
	}
	if (argc == 3) {
	    char buf[TCL_INTEGER_SPACE * 2];
	    
	    GetMaxSize(wmPtr, &width, &height);
	    sprintf(buf, "%d %d", width, height);
	    Tcl_SetResult(interp, buf, TCL_VOLATILE);
	    return TCL_OK;
	}
	if ((Tcl_GetInt(interp, argv[3], &width) != TCL_OK)
		|| (Tcl_GetInt(interp, argv[4], &height) != TCL_OK)) {
	    return TCL_ERROR;
	}
	wmPtr->maxWidth = width;
	wmPtr->maxHeight = height;
	wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
	goto updateGeom;
    } else if ((c == 'm') && (strncmp(argv[1], "minsize", length) == 0)
	    && (length >= 2)) {
	int width, height;
	if ((argc != 3) && (argc != 5)) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0], " minsize window ?width height?\"", (char *) NULL);
	    return TCL_ERROR;
	}
	if (argc == 3) {
	    char buf[TCL_INTEGER_SPACE * 2];

	    sprintf(buf, "%d %d", wmPtr->minWidth, wmPtr->minHeight);
	    Tcl_SetResult(interp, buf, TCL_VOLATILE);
	    return TCL_OK;
	}
	if ((Tcl_GetInt(interp, argv[3], &width) != TCL_OK)
		|| (Tcl_GetInt(interp, argv[4], &height) != TCL_OK)) {
	    return TCL_ERROR;
	}
	wmPtr->minWidth = width;
	wmPtr->minHeight = height;
	wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
	goto updateGeom;
    } else if ((c == 'o')
	    && (strncmp(argv[1], "overrideredirect", length) == 0)) {
	int boolean, curValue;
	XSetWindowAttributes atts;

	if ((argc != 3) && (argc != 4)) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0], " overrideredirect window ?boolean?\"",
		    (char *) NULL);
	    return TCL_ERROR;
	}
	curValue = Tk_Attributes((Tk_Window) winPtr)->override_redirect;
	if (argc == 3) {
	    Tcl_SetBooleanObj(Tcl_GetObjResult(interp), curValue);
	    return TCL_OK;
	}
	if (Tcl_GetBoolean(interp, argv[3], &boolean) != TCL_OK) {
	    return TCL_ERROR;
	}
	if (curValue != boolean) {
	    /*
	     * Only do this if we are really changing value, because it
	     * causes some funky stuff to occur
	     */
	    atts.override_redirect = (boolean) ? True : False;
	    Tk_ChangeWindowAttributes((Tk_Window) winPtr, CWOverrideRedirect,
		    &atts);
	    if (winPtr->wmInfoPtr->wrapperPtr != NULL) {
		Tk_ChangeWindowAttributes(
		    (Tk_Window) winPtr->wmInfoPtr->wrapperPtr,
		    CWOverrideRedirect, &atts);
	    }
	}
    } else if ((c == 'p') && (strncmp(argv[1], "positionfrom", length) == 0)
	    && (length >= 2)) {
	if ((argc != 3) && (argc != 4)) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0], " positionfrom window ?user/program?\"",
		    (char *) NULL);
	    return TCL_ERROR;
	}
	if (argc == 3) {
	    if (wmPtr->sizeHintsFlags & USPosition) {
		Tcl_SetResult(interp, "user", TCL_STATIC);
	    } else if (wmPtr->sizeHintsFlags & PPosition) {
		Tcl_SetResult(interp, "program", TCL_STATIC);
	    }
	    return TCL_OK;
	}
	if (*argv[3] == '\0') {
	    wmPtr->sizeHintsFlags &= ~(USPosition|PPosition);
	} else {
	    c = argv[3][0];
	    length = strlen(argv[3]);
	    if ((c == 'u') && (strncmp(argv[3], "user", length) == 0)) {
		wmPtr->sizeHintsFlags &= ~PPosition;
		wmPtr->sizeHintsFlags |= USPosition;
	    } else if ((c == 'p') && (strncmp(argv[3], "program", length) == 0)) {
		wmPtr->sizeHintsFlags &= ~USPosition;
		wmPtr->sizeHintsFlags |= PPosition;
	    } else {
		Tcl_AppendResult(interp, "bad argument \"", argv[3],
			"\": must be program or user", (char *) NULL);
		return TCL_ERROR;
	    }
	}
	wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
	goto updateGeom;
    } else if ((c == 'p') && (strncmp(argv[1], "protocol", length) == 0)
	    && (length >= 2)) {
	register ProtocolHandler *protPtr, *prevPtr;
	Atom protocol;
	int cmdLength;

	if ((argc < 3) || (argc > 5)) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0], " protocol window ?name? ?command?\"",
		    (char *) NULL);
	    return TCL_ERROR;
	}
	if (argc == 3) {
	    /*
	     * Return a list of all defined protocols for the window.
	     */
	    for (protPtr = wmPtr->protPtr; protPtr != NULL;
		    protPtr = protPtr->nextPtr) {
		Tcl_AppendElement(interp,
			Tk_GetAtomName((Tk_Window) winPtr, protPtr->protocol));
	    }
	    return TCL_OK;
	}
	protocol = Tk_InternAtom((Tk_Window) winPtr, argv[3]);
	if (argc == 4) {
	    /*
	     * Return the command to handle a given protocol.
	     */
	    for (protPtr = wmPtr->protPtr; protPtr != NULL;
		    protPtr = protPtr->nextPtr) {
		if (protPtr->protocol == protocol) {
		    Tcl_SetResult(interp, protPtr->command, TCL_STATIC);
		    return TCL_OK;
		}
	    }
	    return TCL_OK;
	}

	/*
	 * Delete any current protocol handler, then create a new
	 * one with the specified command, unless the command is
	 * empty.
	 */

	for (protPtr = wmPtr->protPtr, prevPtr = NULL; protPtr != NULL;
		prevPtr = protPtr, protPtr = protPtr->nextPtr) {
	    if (protPtr->protocol == protocol) {
		if (prevPtr == NULL) {
		    wmPtr->protPtr = protPtr->nextPtr;
		} else {
		    prevPtr->nextPtr = protPtr->nextPtr;
		}
		Tcl_EventuallyFree((ClientData) protPtr, TCL_DYNAMIC);
		break;
	    }
	}
	cmdLength = strlen(argv[4]);
	if (cmdLength > 0) {
	    protPtr = (ProtocolHandler *) ckalloc(HANDLER_SIZE(cmdLength));
	    protPtr->protocol = protocol;
	    protPtr->nextPtr = wmPtr->protPtr;
	    wmPtr->protPtr = protPtr;
	    protPtr->interp = interp;
	    strcpy(protPtr->command, argv[4]);
	}
	if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
	    UpdateWmProtocols(wmPtr);
	}
    } else if ((c == 'r') && (strncmp(argv[1], "resizable", length) == 0)) {
	int width, height;

	if ((argc != 3) && (argc != 5)) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0], " resizable window ?width height?\"",
		    (char *) NULL);
	    return TCL_ERROR;
	}
	if (argc == 3) {
	    char buf[TCL_INTEGER_SPACE * 2];

	    sprintf(buf, "%d %d",
		    (wmPtr->flags  & WM_WIDTH_NOT_RESIZABLE) ? 0 : 1,
		    (wmPtr->flags  & WM_HEIGHT_NOT_RESIZABLE) ? 0 : 1);
	    Tcl_SetResult(interp, buf, TCL_VOLATILE);
	    return TCL_OK;
	}
	if ((Tcl_GetBoolean(interp, argv[3], &width) != TCL_OK)
		|| (Tcl_GetBoolean(interp, argv[4], &height) != TCL_OK)) {
	    return TCL_ERROR;
	}
	if (width) {
	    wmPtr->flags &= ~WM_WIDTH_NOT_RESIZABLE;
	} else {
	    wmPtr->flags |= WM_WIDTH_NOT_RESIZABLE;
	}
	if (height) {
	    wmPtr->flags &= ~WM_HEIGHT_NOT_RESIZABLE;
	} else {
	    wmPtr->flags |= WM_HEIGHT_NOT_RESIZABLE;
	}
	wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
	goto updateGeom;
    } else if ((c == 's') && (strncmp(argv[1], "sizefrom", length) == 0)
	    && (length >= 2)) {
	if ((argc != 3) && (argc != 4)) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0], " sizefrom window ?user|program?\"",
		    (char *) NULL);
	    return TCL_ERROR;
	}
	if (argc == 3) {
	    if (wmPtr->sizeHintsFlags & USSize) {
		Tcl_SetResult(interp, "user", TCL_STATIC);
	    } else if (wmPtr->sizeHintsFlags & PSize) {
		Tcl_SetResult(interp, "program", TCL_STATIC);
	    }
	    return TCL_OK;
	}
	if (*argv[3] == '\0') {
	    wmPtr->sizeHintsFlags &= ~(USSize|PSize);
	} else {
	    c = argv[3][0];
	    length = strlen(argv[3]);
	    if ((c == 'u') && (strncmp(argv[3], "user", length) == 0)) {
		wmPtr->sizeHintsFlags &= ~PSize;
		wmPtr->sizeHintsFlags |= USSize;
	    } else if ((c == 'p')
		    && (strncmp(argv[3], "program", length) == 0)) {
		wmPtr->sizeHintsFlags &= ~USSize;
		wmPtr->sizeHintsFlags |= PSize;
	    } else {
		Tcl_AppendResult(interp, "bad argument \"", argv[3],
			"\": must be program or user", (char *) NULL);
		return TCL_ERROR;
	    }
	}
	wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
	goto updateGeom;
    } else if ((c == 's') && (strncmp(argv[1], "stackorder", length) == 0)
	    && (length >= 2)) {
	TkWindow **windows, **window_ptr;

	if ((argc != 3) && (argc != 5)) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0],
		    " stackorder window ?isabove|isbelow window?\"",
		    (char *) NULL);
	    return TCL_ERROR;
	}

	if (argc == 3) {
            windows = TkWmStackorderToplevel(winPtr);
            if (windows == NULL) {
                panic("TkWmStackorderToplevel failed");
	    } else {
                for (window_ptr = windows; *window_ptr ; window_ptr++) {
                    Tcl_AppendElement(interp, (*window_ptr)->pathName);
                }
                ckfree((char *) windows);
                return TCL_OK;
	    }
	} else {
	    TkWindow *winPtr2;
	    int index1=-1, index2=-1, result;

	    winPtr2 = (TkWindow *) Tk_NameToWindow(interp, argv[4], tkwin);
	    if (winPtr2 == NULL) {
		return TCL_ERROR;
	    }

	    if (!Tk_IsTopLevel(winPtr2)) {
		Tcl_AppendResult(interp, "window \"", winPtr2->pathName,
		    "\" isn't a top-level window", (char *) NULL);
		return TCL_ERROR;
	    }

	    if (!Tk_IsMapped(winPtr)) {
		Tcl_AppendResult(interp, "window \"", winPtr->pathName,
		    "\" isn't mapped", (char *) NULL);
		return TCL_ERROR;
	    }

	    if (!Tk_IsMapped(winPtr2)) {
		Tcl_AppendResult(interp, "window \"", winPtr2->pathName,
		    "\" isn't mapped", (char *) NULL);
		return TCL_ERROR;
	    }

            /*
             * Lookup stacking order of all toplevels that are children
             * of "." and find the position of winPtr and winPtr2
             * in the stacking order.
             */

            windows = TkWmStackorderToplevel(winPtr->mainPtr->winPtr);

            if (windows == NULL) {
                Tcl_AppendResult(interp, "TkWmStackorderToplevel failed",
                    (char *) NULL);
                return TCL_ERROR;
	    } else {
                for (window_ptr = windows; *window_ptr ; window_ptr++) {
                    if (*window_ptr == winPtr)
                        index1 = (window_ptr - windows);
                    if (*window_ptr == winPtr2)
                        index2 = (window_ptr - windows);
                }
                if (index1 == -1)
                    panic("winPtr window not found");
                if (index2 == -1)
                    panic("winPtr2 window not found");

                ckfree((char *) windows);
	    }

	    c = argv[3][0];
	    length = strlen(argv[3]);
	    if ((length > 2) && (c == 'i')
		    && (strncmp(argv[3], "isabove", length) == 0)) {
		result = index1 > index2;
	    } else if ((length > 2) && (c == 'i')
		    && (strncmp(argv[3], "isbelow", length) == 0)) {
		result = index1 < index2;
	    } else {
		Tcl_AppendResult(interp, "bad argument \"", argv[3],
			"\": must be isabove or isbelow", (char *) NULL);
		return TCL_ERROR;
	    }
	    Tcl_SetIntObj(Tcl_GetObjResult(interp), result);
	    return TCL_OK;
	}
    } else if ((c == 's') && (strncmp(argv[1], "state", length) == 0)
	    && (length >= 2)) {
	if ((argc < 3) || (argc > 4)) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0], " state window ?state?\"", (char *) NULL);
	    return TCL_ERROR;
	}
	if (argc == 4) {
	    if (wmPtr->iconFor != NULL) {
		Tcl_AppendResult(interp, "can't change state of ", argv[2],
			": it is an icon for ", Tk_PathName(wmPtr->iconFor),
			(char *) NULL);
		return TCL_ERROR;
	    }

	    c = argv[3][0];
	    length = strlen(argv[3]);

	    if ((c == 'n') && (strncmp(argv[3], "normal", length) == 0)) {
		(void) TkpWmSetState(winPtr, NormalState);
	    } else if ((c == 'i')
		    && (strncmp(argv[3], "iconic", length) == 0)) {
		if (Tk_Attributes((Tk_Window) winPtr)->override_redirect) {
		    Tcl_AppendResult(interp, "can't iconify \"",
			    winPtr->pathName,
			    "\": override-redirect flag is set",
			    (char *) NULL);
		    return TCL_ERROR;
		}
		if (wmPtr->masterPtr != NULL) {
		    Tcl_AppendResult(interp, "can't iconify \"",
			    winPtr->pathName,
			    "\": it is a transient", (char *) NULL);
		    return TCL_ERROR;
		}
		if (TkpWmSetState(winPtr, IconicState) == 0) {
		    Tcl_SetResult(interp,
			    "couldn't send iconify message to window manager",
			    TCL_STATIC);
		    return TCL_ERROR;
		}
	    } else if ((c == 'w')
		    && (strncmp(argv[3], "withdrawn", length) == 0)) {
		if (TkpWmSetState(winPtr, WithdrawnState) == 0) {
		    Tcl_SetResult(interp,
			    "couldn't send withdraw message to window manager",
			    TCL_STATIC);
		    return TCL_ERROR;
		}
	    } else {
		Tcl_AppendResult(interp, "bad argument \"", argv[3],
			"\": must be normal, iconic or withdrawn",
			(char *) NULL);
		return TCL_ERROR;
	    }
	} else {
	    if (wmPtr->iconFor != NULL) {
		Tcl_SetResult(interp, "icon", TCL_STATIC);
	    } else if (wmPtr->withdrawn) {
		Tcl_SetResult(interp, "withdrawn", TCL_STATIC);
	    } else if (Tk_IsMapped((Tk_Window) winPtr)
		    || ((wmPtr->flags & WM_NEVER_MAPPED)
			    && (wmPtr->hints.initial_state == NormalState))) {
		Tcl_SetResult(interp, "normal", TCL_STATIC);
	    } else {
		Tcl_SetResult(interp, "iconic", TCL_STATIC);
	    }
	}
    } else if ((c == 't') && (strncmp(argv[1], "title", length) == 0)
	    && (length >= 2)) {
	if (argc > 4) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0], " title window ?newTitle?\"", (char *) NULL);
	    return TCL_ERROR;
	}
	if (argc == 3) {
	    Tcl_SetResult(interp,
		    ((wmPtr->title != NULL) ? wmPtr->title : winPtr->nameUid),
		    TCL_STATIC);
	    return TCL_OK;
	} else {
	    if (wmPtr->title != NULL) {
		ckfree((char *) wmPtr->title);
	    }
	    wmPtr->title = ckalloc((unsigned) (strlen(argv[3]) + 1));
	    strcpy(wmPtr->title, argv[3]);
	    if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
		XTextProperty textProp;
		Tcl_DString ds;

		Tcl_UtfToExternalDString(NULL, wmPtr->title, -1, &ds);
		if (XStringListToTextProperty(&(Tcl_DStringValue(&ds)), 1,
			&textProp)  != 0) {
		    XSetWMName(winPtr->display, wmPtr->wrapperPtr->window,
			    &textProp);
		    XFree((char *) textProp.value);
		}
		Tcl_DStringFree(&ds);
	    }
	}
    } else if ((c == 't') && (strncmp(argv[1], "transient", length) == 0)
	    && (length >= 3)) {
	TkWindow *masterPtr = wmPtr->masterPtr;
	WmInfo *wmPtr2;

	if ((argc != 3) && (argc != 4)) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0], " transient window ?master?\"", (char *) NULL);
	    return TCL_ERROR;
	}
	if (argc == 3) {
	    if (masterPtr != NULL) {
		Tcl_SetResult(interp, masterPtr->pathName, TCL_STATIC);
	    }
	    return TCL_OK;
	}
	if (argv[3][0] == '\0') {
	    wmPtr->masterPtr = NULL;
	} else {
	    masterPtr = (TkWindow *) Tk_NameToWindow(interp, argv[3], tkwin);
	    if (masterPtr == NULL) {
		return TCL_ERROR;
	    }
	    while (!Tk_IsTopLevel(masterPtr)) {
		/*
		 * Ensure that the master window is actually a Tk toplevel.
		 */

		masterPtr = masterPtr->parentPtr;
	    }
	    Tk_MakeWindowExist((Tk_Window) masterPtr);

	    if (wmPtr->iconFor != NULL) {
	        Tcl_AppendResult(interp, "can't make \"", argv[2],
	    	        "\" a transient: it is an icon for ",
	                Tk_PathName(wmPtr->iconFor),
	                (char *) NULL);
	        return TCL_ERROR;
	    }

	    wmPtr2 = masterPtr->wmInfoPtr;
	    if (wmPtr2->wrapperPtr == NULL) {
		CreateWrapper(wmPtr2);
	    }

	    if (wmPtr2->iconFor != NULL) {
	        Tcl_AppendResult(interp, "can't make \"", argv[3],
	                "\" a master: it is an icon for ",
	                Tk_PathName(wmPtr2->iconFor),
	                (char *) NULL);
	        return TCL_ERROR;
	    }

	    wmPtr->masterPtr = masterPtr;
	}
	if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
	    Window xwin = (wmPtr->masterPtr == NULL) ? None :
	            wmPtr->masterPtr->wmInfoPtr->wrapperPtr->window;
	    XSetTransientForHint(winPtr->display, wmPtr->wrapperPtr->window,
		    xwin);
	}
    } else if ((c == 'w') && (strncmp(argv[1], "withdraw", length) == 0)
	    && (length >= 2)) {
	if (argc != 3) {
	    Tcl_AppendResult(interp, "wrong # arguments: must be \"",
		    argv[0], " withdraw window\"", (char *) NULL);
	    return TCL_ERROR;
	}
	if (wmPtr->iconFor != NULL) {
	    Tcl_AppendResult(interp, "can't withdraw ", argv[2],
		    ": it is an icon for ", Tk_PathName(wmPtr->iconFor),
		    (char *) NULL);
	    return TCL_ERROR;
	}
	if (TkpWmSetState(winPtr, WithdrawnState) == 0) {
	    Tcl_SetResult(interp,
		    "couldn't send withdraw message to window manager",
		    TCL_STATIC);
	    return TCL_ERROR;
	}
    } else {
	Tcl_AppendResult(interp, "unknown or ambiguous option \"", argv[1],
		"\": must be aspect, client, command, deiconify, ",
		"focusmodel, frame, geometry, grid, group, iconbitmap, ",
		"iconify, iconmask, iconname, iconposition, ",
		"iconwindow, maxsize, minsize, overrideredirect, ",
		"positionfrom, protocol, resizable, sizefrom, stackorder, ",
		"state, title, transient, or withdraw",
		(char *) NULL);
	return TCL_ERROR;
    }
    return TCL_OK;

    updateGeom:
    if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
	Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr);
	wmPtr->flags |= WM_UPDATE_PENDING;
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * Tk_SetGrid --
 *
 *	This procedure is invoked by a widget when it wishes to set a grid
 *	coordinate system that controls the size of a top-level window.
 *	It provides a C interface equivalent to the "wm grid" command and
 *	is usually asscoiated with the -setgrid option.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Grid-related information will be passed to the window manager, so
 *	that the top-level window associated with tkwin will resize on
 *	even grid units.  If some other window already controls gridding
 *	for the top-level window then this procedure call has no effect.
 *
 *----------------------------------------------------------------------
 */

void
Tk_SetGrid(tkwin, reqWidth, reqHeight, widthInc, heightInc)
    Tk_Window tkwin;		/* Token for window.  New window mgr info
				 * will be posted for the top-level window
				 * associated with this window. */
    int reqWidth;		/* Width (in grid units) corresponding to
				 * the requested geometry for tkwin. */
    int reqHeight;		/* Height (in grid units) corresponding to
				 * the requested geometry for tkwin. */
    int widthInc, heightInc;	/* Pixel increments corresponding to a
				 * change of one grid unit. */
{
    TkWindow *winPtr = (TkWindow *) tkwin;
    register WmInfo *wmPtr;

    /*
     * Find the top-level window for tkwin, plus the window manager
     * information.
     */

    while (!(winPtr->flags & TK_TOP_LEVEL)) {
	winPtr = winPtr->parentPtr;
	if (winPtr == NULL) {
	    /*
	     * The window is being deleted... just skip this operation.
	     */

	    return;
	}
    }
    wmPtr = winPtr->wmInfoPtr;

    if ((wmPtr->gridWin != NULL) && (wmPtr->gridWin != tkwin)) {
	return;
    }

    if ((wmPtr->reqGridWidth == reqWidth)
	    && (wmPtr->reqGridHeight == reqHeight)
	    && (wmPtr->widthInc == widthInc)
	    && (wmPtr->heightInc == heightInc)
	    && ((wmPtr->sizeHintsFlags & (PBaseSize|PResizeInc))
		    == (PBaseSize|PResizeInc) )) {
	return;
    }

    /*
     * If gridding was previously off, then forget about any window
     * size requests made by the user or via "wm geometry":  these are
     * in pixel units and there's no easy way to translate them to
     * grid units since the new requested size of the top-level window in
     * pixels may not yet have been registered yet (it may filter up
     * the hierarchy in DoWhenIdle handlers).  However, if the window
     * has never been mapped yet then just leave the window size alone:
     * assume that it is intended to be in grid units but just happened
     * to have been specified before this procedure was called.
     */

    if ((wmPtr->gridWin == NULL) && !(wmPtr->flags & WM_NEVER_MAPPED)) {
	wmPtr->width = -1;
	wmPtr->height = -1;
    }

    /* 
     * Set the new gridding information, and start the process of passing
     * all of this information to the window manager.
     */

    wmPtr->gridWin = tkwin;
    wmPtr->reqGridWidth = reqWidth;
    wmPtr->reqGridHeight = reqHeight;
    wmPtr->widthInc = widthInc;
    wmPtr->heightInc = heightInc;
    wmPtr->sizeHintsFlags |= PBaseSize|PResizeInc;
    wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
    if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
	Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr);
	wmPtr->flags |= WM_UPDATE_PENDING;
    }
}

/*
 *----------------------------------------------------------------------
 *
 * Tk_UnsetGrid --
 *
 *	This procedure cancels the effect of a previous call
 *	to Tk_SetGrid.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	If tkwin currently controls gridding for its top-level window,
 *	gridding is cancelled for that top-level window;  if some other
 *	window controls gridding then this procedure has no effect.
 *
 *----------------------------------------------------------------------
 */

void
Tk_UnsetGrid(tkwin)
    Tk_Window tkwin;		/* Token for window that is currently
				 * controlling gridding. */
{
    TkWindow *winPtr = (TkWindow *) tkwin;
    register WmInfo *wmPtr;

    /*
     * Find the top-level window for tkwin, plus the window manager
     * information.
     */

    while (!(winPtr->flags & TK_TOP_LEVEL)) {
	winPtr = winPtr->parentPtr;
	if (winPtr == NULL) {
	    /*
	     * The window is being deleted... just skip this operation.
	     */

	    return;
	}
    }
    wmPtr = winPtr->wmInfoPtr;
    if (tkwin != wmPtr->gridWin) {
	return;
    }

    wmPtr->gridWin = NULL;
    wmPtr->sizeHintsFlags &= ~(PBaseSize|PResizeInc);
    if (wmPtr->width != -1) {
	wmPtr->width = winPtr->reqWidth + (wmPtr->width
		- wmPtr->reqGridWidth)*wmPtr->widthInc;
	wmPtr->height = winPtr->reqHeight + (wmPtr->height
		- wmPtr->reqGridHeight)*wmPtr->heightInc;
    }
    wmPtr->widthInc = 1;
    wmPtr->heightInc = 1;

    wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
    if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
	Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr);
	wmPtr->flags |= WM_UPDATE_PENDING;
    }
}

/*
 *----------------------------------------------------------------------
 *
 * ConfigureEvent --
 *
 *	This procedure is called to handle ConfigureNotify events on
 *	wrapper windows.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Information gets updated in the WmInfo structure for the window
 *	and the toplevel itself gets repositioned within the wrapper.
 *
 *----------------------------------------------------------------------
 */

static void
ConfigureEvent(wmPtr, configEventPtr)
    WmInfo *wmPtr;			/* Information about toplevel window. */
    XConfigureEvent *configEventPtr;	/* Event that just occurred for
					 * wmPtr->wrapperPtr. */
{
    TkWindow *wrapperPtr = wmPtr->wrapperPtr;
    TkWindow *winPtr = wmPtr->winPtr;
    TkDisplay *dispPtr = wmPtr->winPtr->dispPtr;
    Tk_ErrorHandler handler;

    /* 
     * Update size information from the event.  There are a couple of
     * tricky points here:
     *
     * 1. If the user changed the size externally then set wmPtr->width
     *    and wmPtr->height just as if a "wm geometry" command had been
     *    invoked with the same information.
     * 2. However, if the size is changing in response to a request
     *    coming from us (WM_SYNC_PENDING is set), then don't set wmPtr->width
     *    or wmPtr->height if they were previously -1 (otherwise the
     *    window will stop tracking geometry manager requests).
     */

    if (((wrapperPtr->changes.width != configEventPtr->width)
	    || (wrapperPtr->changes.height != configEventPtr->height))
	    && !(wmPtr->flags & WM_SYNC_PENDING)){
	if (dispPtr->wmTracing) {
	    printf("TopLevelEventProc: user changed %s size to %dx%d\n",
		    winPtr->pathName, configEventPtr->width,
		    configEventPtr->height);
	}
	if ((wmPtr->width == -1)
		&& (configEventPtr->width == winPtr->reqWidth)) {
	    /*
	     * Don't set external width, since the user didn't change it
	     * from what the widgets asked for.
	     */
	} else {
	    /*
	     * Note: if this window is embedded then don't set the external
	     * size, since it came from the containing application, not the
	     * user.  In this case we want to keep sending our size requests
	     * to the containing application;  if the user fixes the size
	     * of that application then it will still percolate down to us
	     * in the right way.
	     */

	    if (!(winPtr->flags & TK_EMBEDDED)) {
		if (wmPtr->gridWin != NULL) {
		    wmPtr->width = wmPtr->reqGridWidth
			    + (configEventPtr->width
			    - winPtr->reqWidth)/wmPtr->widthInc;
		    if (wmPtr->width < 0) {
			wmPtr->width = 0;
		    }
		} else {
		    wmPtr->width = configEventPtr->width;
		}
	    }
	}
	if ((wmPtr->height == -1)
		&& (configEventPtr->height ==
			(winPtr->reqHeight + wmPtr->menuHeight))) {
	    /*
	     * Don't set external height, since the user didn't change it
	     * from what the widgets asked for.
	     */
	} else {
	    /*
	     * See note for wmPtr->width about not setting external size
	     * for embedded windows.
	     */

	    if (!(winPtr->flags & TK_EMBEDDED)) {
		if (wmPtr->gridWin != NULL) {
		    wmPtr->height = wmPtr->reqGridHeight
			    + (configEventPtr->height - wmPtr->menuHeight
			    - winPtr->reqHeight)/wmPtr->heightInc;
		    if (wmPtr->height < 0) {
			wmPtr->height = 0;
		    }
		} else {
		    wmPtr->height = configEventPtr->height - wmPtr->menuHeight;
		}
            }
	}
	wmPtr->configWidth = configEventPtr->width;
	wmPtr->configHeight = configEventPtr->height;
    }

    if (dispPtr->wmTracing) {
	printf("ConfigureEvent: %s x = %d y = %d, width = %d, height = %d\n",
		winPtr->pathName, configEventPtr->x, configEventPtr->y,
		configEventPtr->width, configEventPtr->height);
	printf("    send_event = %d, serial = %ld (win %p, wrapper %p)\n",
		configEventPtr->send_event, configEventPtr->serial,
		winPtr, wrapperPtr);
    }
    wrapperPtr->changes.width = configEventPtr->width;
    wrapperPtr->changes.height = configEventPtr->height;
    wrapperPtr->changes.border_width = configEventPtr->border_width;
    wrapperPtr->changes.sibling = configEventPtr->above;
    wrapperPtr->changes.stack_mode = Above;

    /*
     * Reparenting window managers make life difficult.  If the
     * window manager reparents a top-level window then the x and y
     * information that comes in events for the window is wrong:
     * it gives the location of the window inside its decorative
     * parent, rather than the location of the window in root
     * coordinates, which is what we want.  Window managers
     * are supposed to send synthetic events with the correct
     * information, but ICCCM doesn't require them to do this
     * under all conditions, and the information provided doesn't
     * include everything we need here.  So, the code below
     * maintains a bunch of information about the parent window.
     * If the window hasn't been reparented, we pretend that
     * there is a parent shrink-wrapped around the window.
     */

    if (dispPtr->wmTracing) {
	printf("    %s parent == %p, above %p\n",
		winPtr->pathName, (void *) wmPtr->reparent,
		(void *) configEventPtr->above);
    }

    if ((wmPtr->reparent == None) || !ComputeReparentGeometry(wmPtr)) {
	wmPtr->parentWidth = configEventPtr->width
		+ 2*configEventPtr->border_width;
	wmPtr->parentHeight = configEventPtr->height
		+ 2*configEventPtr->border_width;
	wrapperPtr->changes.x = wmPtr->x = configEventPtr->x;
	wrapperPtr->changes.y = wmPtr->y = configEventPtr->y;
	if (wmPtr->flags & WM_NEGATIVE_X) {
	    wmPtr->x = wmPtr->vRootWidth - (wmPtr->x + wmPtr->parentWidth);
	}
	if (wmPtr->flags & WM_NEGATIVE_Y) {
	    wmPtr->y = wmPtr->vRootHeight - (wmPtr->y + wmPtr->parentHeight);
	}
    }

    /*
     * Make sure that the toplevel and menubar are properly positioned within
     * the wrapper.  If the menuHeight happens to be zero, we'll get a
     * BadValue X error that we want to ignore [Bug: 3377]
     */
    handler = Tk_CreateErrorHandler(winPtr->display, -1, -1, -1,
	    (Tk_ErrorProc *) NULL, (ClientData) NULL);
    XMoveResizeWindow(winPtr->display, winPtr->window, 0,
	    wmPtr->menuHeight, (unsigned) wrapperPtr->changes.width,
	    (unsigned) (wrapperPtr->changes.height - wmPtr->menuHeight));
    Tk_DeleteErrorHandler(handler);
    if ((wmPtr->menubar != NULL)
	    && ((Tk_Width(wmPtr->menubar) != wrapperPtr->changes.width)
	    || (Tk_Height(wmPtr->menubar) != wmPtr->menuHeight))) {
	Tk_MoveResizeWindow(wmPtr->menubar, 0, 0, wrapperPtr->changes.width,
		wmPtr->menuHeight);
    }

    /*
     * Update the coordinates in the toplevel (they should refer to the
     * position in root window coordinates, not the coordinates of the
     * wrapper window).  Then synthesize a ConfigureNotify event to tell
     * the application about the change.
     */

    winPtr->changes.x = wrapperPtr->changes.x;
    winPtr->changes.y = wrapperPtr->changes.y + wmPtr->menuHeight;
    winPtr->changes.width = wrapperPtr->changes.width;
    winPtr->changes.height = wrapperPtr->changes.height - wmPtr->menuHeight;
    TkDoConfigureNotify(winPtr);
}

/*
 *----------------------------------------------------------------------
 *
 * ReparentEvent --
 *
 *	This procedure is called to handle ReparentNotify events on
 *	wrapper windows.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Information gets updated in the WmInfo structure for the window.
 *
 *----------------------------------------------------------------------
 */

static void
ReparentEvent(wmPtr, reparentEventPtr)
    WmInfo *wmPtr;			/* Information about toplevel window. */
    XReparentEvent *reparentEventPtr;	/* Event that just occurred for
					 * wmPtr->wrapperPtr. */
{
    TkWindow *wrapperPtr = wmPtr->wrapperPtr;
    Window vRoot, ancestor, *children, dummy2, *virtualRootPtr;
    Atom actualType;
    int actualFormat;
    unsigned long numItems, bytesAfter;
    unsigned int dummy;
    Tk_ErrorHandler handler;
    TkDisplay *dispPtr = wmPtr->winPtr->dispPtr;

    /*
     * Identify the root window for wrapperPtr.  This is tricky because of
     * virtual root window managers like tvtwm.  If the window has a
     * property named __SWM_ROOT or __WM_ROOT then this property gives
     * the id for a virtual root window that should be used instead of
     * the root window of the screen.
     */

    vRoot = RootWindow(wrapperPtr->display, wrapperPtr->screenNum);
    wmPtr->vRoot = None;
    handler = Tk_CreateErrorHandler(wrapperPtr->display, -1, -1, -1,
	    (Tk_ErrorProc *) NULL, (ClientData) NULL);
    if (((XGetWindowProperty(wrapperPtr->display, wrapperPtr->window,
	    Tk_InternAtom((Tk_Window) wrapperPtr, "__WM_ROOT"), 0, (long) 1,
	    False, XA_WINDOW, &actualType, &actualFormat, &numItems,
	    &bytesAfter, (unsigned char **) &virtualRootPtr) == Success)
	    && (actualType == XA_WINDOW))
	    || ((XGetWindowProperty(wrapperPtr->display, wrapperPtr->window,
	    Tk_InternAtom((Tk_Window) wrapperPtr, "__SWM_ROOT"), 0, (long) 1,
	    False, XA_WINDOW, &actualType, &actualFormat, &numItems,
	    &bytesAfter, (unsigned char **) &virtualRootPtr) == Success)
	    && (actualType == XA_WINDOW))) {
	if ((actualFormat == 32) && (numItems == 1)) {
	    vRoot = wmPtr->vRoot = *virtualRootPtr;
	} else if (dispPtr->wmTracing) {
	    printf("%s format %d numItems %ld\n",
		    "ReparentEvent got bogus VROOT property:", actualFormat,
		    numItems);
	}
	XFree((char *) virtualRootPtr);
    }
    Tk_DeleteErrorHandler(handler);

    if (dispPtr->wmTracing) {
	printf("ReparentEvent: %s (%p) reparented to 0x%x, vRoot = 0x%x\n",
		wmPtr->winPtr->pathName, wmPtr->winPtr,
		(unsigned int) reparentEventPtr->parent, (unsigned int) vRoot);
    }

    /*
     * Fetch correct geometry information for the new virtual root.
     */

    UpdateVRootGeometry(wmPtr);

    /*
     * If the window's new parent is the root window, then mark it as
     * no longer reparented.
     */

    if (reparentEventPtr->parent == vRoot) {
	noReparent:
	wmPtr->reparent = None;
	wmPtr->parentWidth = wrapperPtr->changes.width;
	wmPtr->parentHeight = wrapperPtr->changes.height;
	wmPtr->xInParent = wmPtr->yInParent = 0;
	wrapperPtr->changes.x = reparentEventPtr->x;
	wrapperPtr->changes.y = reparentEventPtr->y;
	wmPtr->winPtr->changes.x = reparentEventPtr->x;
	wmPtr->winPtr->changes.y = reparentEventPtr->y + wmPtr->menuHeight;
	return;
    }

    /*
     * Search up the window hierarchy to find the ancestor of this
     * window that is just below the (virtual) root.  This is tricky
     * because it's possible that things have changed since the event
     * was generated so that the ancestry indicated by the event no
     * longer exists.  If this happens then an error will occur and
     * we just discard the event (there will be a more up-to-date
     * ReparentNotify event coming later).
     */

    handler = Tk_CreateErrorHandler(wrapperPtr->display, -1, -1, -1,
	    (Tk_ErrorProc *) NULL, (ClientData) NULL);
    wmPtr->reparent = reparentEventPtr->parent;
    while (1) {
	if (XQueryTree(wrapperPtr->display, wmPtr->reparent, &dummy2,
		&ancestor, &children, &dummy) == 0) {
	    Tk_DeleteErrorHandler(handler);
	    goto noReparent;
	}
	XFree((char *) children);
	if ((ancestor == vRoot) ||
		(ancestor == RootWindow(wrapperPtr->display,
		wrapperPtr->screenNum))) {
	    break;
	}
	wmPtr->reparent = ancestor;
    }
    Tk_DeleteErrorHandler(handler);

    if (!ComputeReparentGeometry(wmPtr)) {
	goto noReparent;
    }
}

/*
 *----------------------------------------------------------------------
 *
 * ComputeReparentGeometry --
 *
 *	This procedure is invoked to recompute geometry information
 *	related to a reparented top-level window, such as the position
 *	and total size of the parent and the position within it of
 *	the top-level window.
 *
 * Results:
 *	The return value is 1 if everything completed successfully
 *	and 0 if an error occurred while querying information about
 *	winPtr's parents.  In this case winPtr is marked as no longer
 *	being reparented.
 *
 * Side effects:
 *	Geometry information in wmPtr, wmPtr->winPtr, and
 *	wmPtr->wrapperPtr gets updated.
 *
 *----------------------------------------------------------------------
 */

static int
ComputeReparentGeometry(wmPtr)
    WmInfo *wmPtr;		/* Information about toplevel window
				 * whose reparent info is to be recomputed. */
{
    TkWindow *wrapperPtr = wmPtr->wrapperPtr;
    int width, height, bd;
    unsigned int dummy;
    int xOffset, yOffset, x, y;
    Window dummy2;
    Status status;
    Tk_ErrorHandler handler;
    TkDisplay *dispPtr = wmPtr->winPtr->dispPtr;

    handler = Tk_CreateErrorHandler(wrapperPtr->display, -1, -1, -1,
	    (Tk_ErrorProc *) NULL, (ClientData) NULL);
    (void) XTranslateCoordinates(wrapperPtr->display, wrapperPtr->window,
	    wmPtr->reparent, 0, 0, &xOffset, &yOffset, &dummy2);
    status = XGetGeometry(wrapperPtr->display, wmPtr->reparent,
	    &dummy2, &x, &y, (unsigned int *) &width,
	    (unsigned int *) &height, (unsigned int *) &bd, &dummy);
    Tk_DeleteErrorHandler(handler);
    if (status == 0) {
	/*
	 * It appears that the reparented parent went away and
	 * no-one told us.  Reset the window to indicate that
	 * it's not reparented.
	 */
	wmPtr->reparent = None;
	wmPtr->xInParent = wmPtr->yInParent = 0;
	return 0;
    }
    wmPtr->xInParent = xOffset + bd;
    wmPtr->yInParent = yOffset + bd;
    wmPtr->parentWidth = width + 2*bd;
    wmPtr->parentHeight = height + 2*bd;

    /*
     * Some tricky issues in updating wmPtr->x and wmPtr->y:
     *
     * 1. Don't update them if the event occurred because of something
     * we did (i.e. WM_SYNC_PENDING and WM_MOVE_PENDING are both set).
     * This is because window managers treat coords differently than Tk,
     * and no two window managers are alike. If the window manager moved
     * the window because we told it to, remember the coordinates we told
     * it, not the ones it actually moved it to.  This allows us to move
     * the window back to the same coordinates later and get the same
     * result. Without this check, windows can "walk" across the screen
     * under some conditions.
     *
     * 2. Don't update wmPtr->x and wmPtr->y unless wrapperPtr->changes.x
     * or wrapperPtr->changes.y has changed (otherwise a size change can
     * spoof us into thinking that the position changed too and defeat
     * the intent of (1) above.
     *
     * (As of 9/96 the above 2 comments appear to be stale.  They're
     * being left in place as a reminder of what was once true (and
     * perhaps should still be true?)).
     *
     * 3. Ignore size changes coming from the window system if we're
     * about to change the size ourselves but haven't seen the event for
     * it yet:  our size change is supposed to take priority.
     */

    if (!(wmPtr->flags & WM_MOVE_PENDING)
	    && ((wrapperPtr->changes.x != (x + wmPtr->xInParent))
	    || (wrapperPtr->changes.y != (y + wmPtr->yInParent)))) {
	wmPtr->x = x;
	if (wmPtr->flags & WM_NEGATIVE_X) {
	    wmPtr->x = wmPtr->vRootWidth - (wmPtr->x + wmPtr->parentWidth);
	}
	wmPtr->y = y;
	if (wmPtr->flags & WM_NEGATIVE_Y) {
	    wmPtr->y = wmPtr->vRootHeight - (wmPtr->y + wmPtr->parentHeight);
	}
    }

    wrapperPtr->changes.x = x + wmPtr->xInParent;
    wrapperPtr->changes.y = y + wmPtr->yInParent;
    if (dispPtr->wmTracing) {
	printf("wrapperPtr %p coords %d,%d\n",
		wrapperPtr, wrapperPtr->changes.x, wrapperPtr->changes.y);
	printf("     wmPtr %p coords %d,%d, offsets %d %d\n",
		wmPtr, wmPtr->x, wmPtr->y, wmPtr->xInParent, wmPtr->yInParent);
    }
    return 1;
}

/*
 *----------------------------------------------------------------------
 *
 * WrapperEventProc --
 *
 *	This procedure is invoked by the event loop when a wrapper window
 *	is restructured.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Tk's internal data structures for the window get modified to
 *	reflect the structural change.
 *
 *----------------------------------------------------------------------
 */

static void
WrapperEventProc(clientData, eventPtr)
    ClientData clientData;		/* Information about toplevel window. */
    XEvent *eventPtr;			/* Event that just happened. */
{
    WmInfo *wmPtr = (WmInfo *) clientData;
    XEvent mapEvent;
    TkDisplay *dispPtr = wmPtr->winPtr->dispPtr;

    wmPtr->flags |= WM_VROOT_OFFSET_STALE;
    if (eventPtr->type == DestroyNotify) {
	Tk_ErrorHandler handler;

	if (!(wmPtr->wrapperPtr->flags & TK_ALREADY_DEAD)) {
	    /*
	     * A top-level window was deleted externally (e.g., by the window
	     * manager).  This is probably not a good thing, but cleanup as
	     * best we can.  The error handler is needed because
	     * Tk_DestroyWindow will try to destroy the window, but of course
	     * it's already gone.
	     */
    
	    handler = Tk_CreateErrorHandler(wmPtr->winPtr->display, -1, -1, -1,
		    (Tk_ErrorProc *) NULL, (ClientData) NULL);
	    Tk_DestroyWindow((Tk_Window) wmPtr->winPtr);
	    Tk_DeleteErrorHandler(handler);
	}
	if (dispPtr->wmTracing) {
	    printf("TopLevelEventProc: %s deleted\n", wmPtr->winPtr->pathName);
	}
    } else if (eventPtr->type == ConfigureNotify) {
	/*
	 * Ignore the event if the window has never been mapped yet.
	 * Such an event occurs only in weird cases like changing the
	 * internal border width of a top-level window, which results
	 * in a synthetic Configure event.  These events are not relevant
	 * to us, and if we process them confusion may result (e.g. we
	 * may conclude erroneously that the user repositioned or resized
	 * the window).
	 */

	if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
	    ConfigureEvent(wmPtr, &eventPtr->xconfigure);
	}
    } else if (eventPtr->type == MapNotify) {
	wmPtr->wrapperPtr->flags |= TK_MAPPED;
	wmPtr->winPtr->flags |= TK_MAPPED;
	XMapWindow(wmPtr->winPtr->display, wmPtr->winPtr->window);
	goto doMapEvent;
    } else if (eventPtr->type == UnmapNotify) {
	wmPtr->wrapperPtr->flags &= ~TK_MAPPED;
	wmPtr->winPtr->flags &= ~TK_MAPPED;
	XUnmapWindow(wmPtr->winPtr->display, wmPtr->winPtr->window);
	goto doMapEvent;
    } else if (eventPtr->type == ReparentNotify) {
	ReparentEvent(wmPtr, &eventPtr->xreparent);
    }
    return;

    doMapEvent:
    mapEvent = *eventPtr;
    mapEvent.xmap.event = wmPtr->winPtr->window;
    mapEvent.xmap.window = wmPtr->winPtr->window;
    Tk_HandleEvent(&mapEvent);
}

/*
 *----------------------------------------------------------------------
 *
 * TopLevelReqProc --
 *
 *	This procedure is invoked by the geometry manager whenever
 *	the requested size for a top-level window is changed.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Arrange for the window to be resized to satisfy the request
 *	(this happens as a when-idle action).
 *
 *----------------------------------------------------------------------
 */

	/* ARGSUSED */
static void
TopLevelReqProc(dummy, tkwin)
    ClientData dummy;			/* Not used. */
    Tk_Window tkwin;			/* Information about window. */
{
    TkWindow *winPtr = (TkWindow *) tkwin;
    WmInfo *wmPtr;

    wmPtr = winPtr->wmInfoPtr;

    if ((wmPtr->width >= 0) && (wmPtr->height >= 0)) {
	/*
	 * Explicit dimensions have been set for this window, so we
	 * should ignore the geometry request.  It's actually important
	 * to ignore the geometry request because, due to quirks in
	 * window managers, invoking UpdateGeometryInfo may cause the
	 * window to move.  For example, if "wm geometry -10-20" was
	 * invoked, the window may be positioned incorrectly the first
	 * time it appears (because we didn't know the proper width of
	 * the window manager borders); if we invoke UpdateGeometryInfo
	 * again, the window will be positioned correctly, which may
	 * cause it to jump on the screen.
	 */

	return;
    }

    wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
    if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
	Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr);
	wmPtr->flags |= WM_UPDATE_PENDING;
    }

    /*
     * If the window isn't being positioned by its upper left corner
     * then we have to move it as well.
     */

    if (wmPtr->flags & (WM_NEGATIVE_X | WM_NEGATIVE_Y)) {
	wmPtr->flags |= WM_MOVE_PENDING;
    }
}

/*
 *----------------------------------------------------------------------
 *
 * UpdateGeometryInfo --
 *
 *	This procedure is invoked when a top-level window is first
 *	mapped, and also as a when-idle procedure, to bring the
 *	geometry and/or position of a top-level window back into
 *	line with what has been requested by the user and/or widgets.
 *	This procedure doesn't return until the window manager has
 *	responded to the geometry change.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	The size and location of both the toplevel window and its wrapper
 *	may change, unless the WM prevents that from happening.
 *
 *----------------------------------------------------------------------
 */

static void
UpdateGeometryInfo(clientData)
    ClientData clientData;		/* Pointer to the window's record. */
{
    register TkWindow *winPtr = (TkWindow *) clientData;
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    int x, y, width, height;
    unsigned long serial;

    wmPtr->flags &= ~WM_UPDATE_PENDING;

    /*
     * Compute the new size for the top-level window.  See the
     * user documentation for details on this, but the size
     * requested depends on (a) the size requested internally
     * by the window's widgets, (b) the size requested by the
     * user in a "wm geometry" command or via wm-based interactive
     * resizing (if any), and (c) whether or not the window is
     * gridded.  Don't permit sizes <= 0 because this upsets
     * the X server.
     */

    if (wmPtr->width == -1) {
	width = winPtr->reqWidth;
    } else if (wmPtr->gridWin != NULL) {
	width = winPtr->reqWidth
		+ (wmPtr->width - wmPtr->reqGridWidth)*wmPtr->widthInc;
    } else {
	width = wmPtr->width;
    }
    if (width <= 0) {
	width = 1;
    }
    if (wmPtr->height == -1) {
	height = winPtr->reqHeight;
    } else if (wmPtr->gridWin != NULL) {
	height = winPtr->reqHeight
		+ (wmPtr->height - wmPtr->reqGridHeight)*wmPtr->heightInc;
    } else {
	height = wmPtr->height;
    }
    if (height <= 0) {
	height = 1;
    }

    /*
     * Compute the new position for the upper-left pixel of the window's
     * decorative frame.  This is tricky, because we need to include the
     * border widths supplied by a reparented parent in this calculation,
     * but can't use the parent's current overall size since that may
     * change as a result of this code.
     */

    if (wmPtr->flags & WM_NEGATIVE_X) {
	x = wmPtr->vRootWidth - wmPtr->x
		- (width + (wmPtr->parentWidth - winPtr->changes.width));
    } else {
	x =  wmPtr->x;
    }
    if (wmPtr->flags & WM_NEGATIVE_Y) {
	y = wmPtr->vRootHeight - wmPtr->y
		- (height + (wmPtr->parentHeight - winPtr->changes.height));
    } else {
	y =  wmPtr->y;
    }

    /*
     * If the window's size is going to change and the window is
     * supposed to not be resizable by the user, then we have to
     * update the size hints.  There may also be a size-hint-update
     * request pending from somewhere else, too.
     */

    if (((width != winPtr->changes.width)
	    || (height != winPtr->changes.height))
	    && (wmPtr->gridWin == NULL)
	    && ((wmPtr->sizeHintsFlags & (PMinSize|PMaxSize)) == 0)) {
	wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
    }
    if (wmPtr->flags & WM_UPDATE_SIZE_HINTS) {
	UpdateSizeHints(winPtr);
    }

    /*
     * Reconfigure the wrapper if it isn't already configured correctly.
     * A few tricky points:
     *
     * 1. If the window is embeddedand the container is also in this
     *    process, don't actually reconfigure the window; just pass the
     *    desired size on to the container.  Also, zero out any position
     *    information, since embedded windows are not allowed to move.
     * 2. Sometimes the window manager will give us a different size
     *    than we asked for (e.g. mwm has a minimum size for windows), so
     *    base the size check on what we *asked for* last time, not what we
     *    got.
     * 3. Can't just reconfigure always, because we may not get a
     *    ConfigureNotify event back if nothing changed, so
     *    WaitForConfigureNotify will hang a long time.
     * 4. Don't move window unless a new position has been requested for
     *	  it.  This is because of "features" in some window managers (e.g.
     *    twm, as of 4/24/91) where they don't interpret coordinates
     *    according to ICCCM.  Moving a window to its current location may
     *    cause it to shift position on the screen.
     */

    if ((winPtr->flags & (TK_EMBEDDED|TK_BOTH_HALVES))
	    == (TK_EMBEDDED|TK_BOTH_HALVES)) {
	/*
	 * This window is embedded and the container is also in this
	 * process, so we don't need to do anything special about the
	 * geometry, except to make sure that the desired size is known
	 * by the container.  Also, zero out any position information,
	 * since embedded windows are not allowed to move.
	 */

	wmPtr->x = wmPtr->y = 0;
	wmPtr->flags &= ~(WM_NEGATIVE_X|WM_NEGATIVE_Y);
	height += wmPtr->menuHeight;
	Tk_GeometryRequest((Tk_Window) TkpGetOtherWindow(winPtr),
		width, height);
	return;
    }
    serial = NextRequest(winPtr->display);
    height += wmPtr->menuHeight;
    if (wmPtr->flags & WM_MOVE_PENDING) {
	if ((x + wmPtr->xInParent == winPtr->changes.x) &&
		(y + wmPtr->yInParent + wmPtr->menuHeight == winPtr->changes.y)
		&& (width == wmPtr->wrapperPtr->changes.width)
		&& (height == wmPtr->wrapperPtr->changes.height)) {
	    /*
	     * The window already has the correct geometry, so don't bother
	     * to configure it;  the X server appears to ignore these
	     * requests, so we won't get back a ConfigureNotify and the
	     * WaitForConfigureNotify call below will hang for a while.
	     */

	    wmPtr->flags &= ~WM_MOVE_PENDING;
	    return;
	}
	wmPtr->configWidth = width;
	wmPtr->configHeight = height;
	if (winPtr->dispPtr->wmTracing) {
	   printf("UpdateGeometryInfo moving to %d %d, resizing to %d x %d,\n",
                   x, y, width, height);
	}
	XMoveResizeWindow(winPtr->display, wmPtr->wrapperPtr->window, x, y,
		(unsigned) width, (unsigned) height);
    } else if ((width != wmPtr->configWidth)
	    || (height != wmPtr->configHeight)) {
	if ((width == wmPtr->wrapperPtr->changes.width)
		&& (height == wmPtr->wrapperPtr->changes.height)) {
	    /*
	     * The window is already just the size we want, so don't bother
	     * to configure it;  the X server appears to ignore these
	     * requests, so we won't get back a ConfigureNotify and the
	     * WaitForConfigureNotify call below will hang for a while.
	     */

	    return;
	}
	wmPtr->configWidth = width;
	wmPtr->configHeight = height;
	if (winPtr->dispPtr->wmTracing) {
	    printf("UpdateGeometryInfo resizing %p to %d x %d\n",
		    (void *)wmPtr->wrapperPtr->window, width, height);
	}
	XResizeWindow(winPtr->display, wmPtr->wrapperPtr->window,
		(unsigned) width, (unsigned) height);
    } else if ((wmPtr->menubar != NULL)
	    && ((Tk_Width(wmPtr->menubar) != wmPtr->wrapperPtr->changes.width)
	    || (Tk_Height(wmPtr->menubar) != wmPtr->menuHeight))) {
	/*
	 * It is possible that the window's overall size has not changed
	 * but the menu size has.
	 */
	
	Tk_MoveResizeWindow(wmPtr->menubar, 0, 0,
		wmPtr->wrapperPtr->changes.width, wmPtr->menuHeight);
	XResizeWindow(winPtr->display, wmPtr->wrapperPtr->window,
		(unsigned) width, (unsigned) height);
    } else {
	return;
    }

    /*
     * Wait for the configure operation to complete.  Don't need to do
     * this, however, if the window is about to be mapped:  it will be
     * taken care of elsewhere.
     */

    if (!(wmPtr->flags & WM_ABOUT_TO_MAP)) {
	WaitForConfigureNotify(winPtr, serial);
    }
}

/*
 *--------------------------------------------------------------
 *
 * UpdateSizeHints --
 *
 *	This procedure is called to update the window manager's
 *	size hints information from the information in a WmInfo
 *	structure.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Properties get changed for winPtr.
 *
 *--------------------------------------------------------------
 */

static void
UpdateSizeHints(winPtr)
    TkWindow *winPtr;
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    XSizeHints *hintsPtr;
    int maxWidth, maxHeight;

    wmPtr->flags &= ~WM_UPDATE_SIZE_HINTS;

    hintsPtr = XAllocSizeHints();
    if (hintsPtr == NULL) {
	return;
    }

    /*
     * Compute the pixel-based sizes for the various fields in the
     * size hints structure, based on the grid-based sizes in
     * our structure.
     */

    GetMaxSize(wmPtr, &maxWidth, &maxHeight);
    if (wmPtr->gridWin != NULL) {
	hintsPtr->base_width = winPtr->reqWidth
		- (wmPtr->reqGridWidth * wmPtr->widthInc);
	if (hintsPtr->base_width < 0) {
	    hintsPtr->base_width = 0;
	}
	hintsPtr->base_height = winPtr->reqHeight + wmPtr->menuHeight
		- (wmPtr->reqGridHeight * wmPtr->heightInc);
	if (hintsPtr->base_height < 0) {
	    hintsPtr->base_height = 0;
	}
	hintsPtr->min_width = hintsPtr->base_width
		+ (wmPtr->minWidth * wmPtr->widthInc);
	hintsPtr->min_height = hintsPtr->base_height
		+ (wmPtr->minHeight * wmPtr->heightInc);
	hintsPtr->max_width = hintsPtr->base_width
		+ (maxWidth * wmPtr->widthInc);
	hintsPtr->max_height = hintsPtr->base_height
		+ (maxHeight * wmPtr->heightInc);
    } else {
	hintsPtr->min_width = wmPtr->minWidth;
	hintsPtr->min_height = wmPtr->minHeight;
	hintsPtr->max_width = maxWidth;
	hintsPtr->max_height = maxHeight;
	hintsPtr->base_width = 0;
	hintsPtr->base_height = 0;
    }
    hintsPtr->width_inc = wmPtr->widthInc;
    hintsPtr->height_inc = wmPtr->heightInc;
    hintsPtr->min_aspect.x = wmPtr->minAspect.x;
    hintsPtr->min_aspect.y = wmPtr->minAspect.y;
    hintsPtr->max_aspect.x = wmPtr->maxAspect.x;
    hintsPtr->max_aspect.y = wmPtr->maxAspect.y;
    hintsPtr->win_gravity = wmPtr->gravity;
    hintsPtr->flags = wmPtr->sizeHintsFlags | PMinSize | PMaxSize;

    /*
     * If the window isn't supposed to be resizable, then set the
     * minimum and maximum dimensions to be the same.
     */

    if (wmPtr->flags & WM_WIDTH_NOT_RESIZABLE) {
	if (wmPtr->width >= 0) {
	    hintsPtr->min_width = wmPtr->width;
	} else {
	    hintsPtr->min_width = winPtr->reqWidth;
	}
	hintsPtr->max_width = hintsPtr->min_width;
    }
    if (wmPtr->flags & WM_HEIGHT_NOT_RESIZABLE) {
	if (wmPtr->height >= 0) {
	    hintsPtr->min_height = wmPtr->height;
	} else {
	    hintsPtr->min_height = winPtr->reqHeight + wmPtr->menuHeight;
	}
	hintsPtr->max_height = hintsPtr->min_height;
    }

    XSetWMNormalHints(winPtr->display, wmPtr->wrapperPtr->window, hintsPtr);

    XFree((char *) hintsPtr);
}

/*
 *----------------------------------------------------------------------
 *
 * WaitForConfigureNotify --
 *
 *	This procedure is invoked in order to synchronize with the
 *	window manager.  It waits for a ConfigureNotify event to
 *	arrive, signalling that the window manager has seen an attempt
 *	on our part to move or resize a top-level window.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Delays the execution of the process until a ConfigureNotify event
 *	arrives with serial number at least as great as serial.  This
 *	is useful for two reasons:
 *
 *	1. It's important to distinguish ConfigureNotify events that are
 *	   coming in response to a request we've made from those generated
 *	   spontaneously by the user.  The reason for this is that if the
 *	   user resizes the window we take that as an order to ignore
 *	   geometry requests coming from inside the window hierarchy.  If
 *	   we accidentally interpret a response to our request as a
 *	   user-initiated action, the window will stop responding to
 *	   new geometry requests.  To make this distinction, (a) this
 *	   procedure sets a flag for TopLevelEventProc to indicate that
 *	   we're waiting to sync with the wm, and (b) all changes to
 *	   the size of a top-level window are followed by calls to this
 *	   procedure.
 *	2. Races and confusion can come about if there are multiple
 *	   operations outstanding at a time (e.g. two different resizes
 *	   of the top-level window:  it's hard to tell which of the
 *	   ConfigureNotify events coming back is for which request).
 *	While waiting, all events covered by StructureNotifyMask are
 *	processed and all others are deferred.
 *
 *----------------------------------------------------------------------
 */

static void
WaitForConfigureNotify(winPtr, serial)
    TkWindow *winPtr;		/* Top-level window for which we want
				 * to see a ConfigureNotify. */
    unsigned long serial;	/* Serial number of resize request.  Want to
				 * be sure wm has seen this. */
{
    WmInfo *wmPtr = winPtr->wmInfoPtr;
    XEvent event;
    int diff, code;
    int gotConfig = 0;

    /*
     * One more tricky detail about this procedure.  In some cases the
     * window manager will decide to ignore a configure request (e.g.
     * because it thinks the window is already in the right place).
     * To avoid hanging in this situation, only wait for a few seconds,
     * then give up.
     */

    while (!gotConfig) {
	wmPtr->flags |= WM_SYNC_PENDING;
	code = WaitForEvent(winPtr->display, wmPtr, ConfigureNotify, &event);
	wmPtr->flags &= ~WM_SYNC_PENDING;
	if (code != TCL_OK) {
	    if (winPtr->dispPtr->wmTracing) {
		printf("WaitForConfigureNotify giving up on %s\n",
			winPtr->pathName);
	    }
	    break;
	}
	diff = event.xconfigure.serial - serial;
	if (diff >= 0) {
	    gotConfig = 1;
	}
    }
    wmPtr->flags &= ~WM_MOVE_PENDING;
    if (winPtr->dispPtr->wmTracing) {
	printf("WaitForConfigureNotify finished with %s, serial %ld\n",
		winPtr->pathName, serial);
    }
}

/*
 *----------------------------------------------------------------------
 *
 * WaitForEvent --
 *
 *	This procedure is used by WaitForConfigureNotify and
 *	WaitForMapNotify to wait for an event of a certain type
 *	to arrive.
 *
 * Results:
 *	Under normal conditions, TCL_OK is returned and an event for
 *	display and window that matches "mask" is stored in *eventPtr.
 *	This event  has already been processed by Tk before this procedure
 *	returns.  If a long time goes by with no event of the right type
 *	arriving, or if an error occurs while waiting for the event to
 *	arrive, then TCL_ERROR is returned.
 *
 * Side effects:
 *	While waiting for the desired event to occur, Configurenotify
 *	events for window are processed, as are all ReparentNotify events,
 *
 *----------------------------------------------------------------------
 */

static int
WaitForEvent(display, wmInfoPtr, type, eventPtr)
    Display *display;		/* Display event is coming from. */
    WmInfo *wmInfoPtr;		/* Window for which event is desired. */
    int type;			/* Type of event that is wanted. */
    XEvent *eventPtr;		/* Place to store event. */
{
    WaitRestrictInfo info;
    Tk_RestrictProc *oldRestrictProc;
    ClientData oldRestrictData;
    Tcl_Time timeout;

    /*
     * Set up an event filter to select just the events we want, and
     * a timer handler, then wait for events until we get the event
     * we want or a timeout happens.
     */

    info.display = display;
    info.wmInfoPtr = wmInfoPtr;
    info.type = type;
    info.eventPtr = eventPtr;
    info.foundEvent = 0;
    oldRestrictProc = Tk_RestrictEvents(WaitRestrictProc, (ClientData) &info,
	    &oldRestrictData);

    TclpGetTime(&timeout);
    timeout.sec += 2;

    while (!info.foundEvent) {
	if (!TkUnixDoOneXEvent(&timeout)) {
	    break;
	}
    }
    (void) Tk_RestrictEvents(oldRestrictProc, oldRestrictData,
	    &oldRestrictData);
    if (info.foundEvent) {
	return TCL_OK;
    }
    return TCL_ERROR;
}

/*
 *----------------------------------------------------------------------
 *
 * WaitRestrictProc --
 *
 *	This procedure is a Tk_RestrictProc that is used to filter
 *	events while WaitForEvent is active.
 *
 * Results:
 *	Returns TK_PROCESS_EVENT if the right event is found.  Also
 *	returns TK_PROCESS_EVENT if any ReparentNotify event is found
 *	for window or if the event is a ConfigureNotify for window.
 *	Otherwise returns TK_DEFER_EVENT.
 *
 * Side effects:
 *	An event may get stored in the area indicated by the caller
 *	of WaitForEvent.
 *
 *----------------------------------------------------------------------
 */

static Tk_RestrictAction
WaitRestrictProc(clientData, eventPtr)
    ClientData clientData;	/* Pointer to WaitRestrictInfo structure. */
    XEvent *eventPtr;		/* Event that is about to be handled. */
{
    WaitRestrictInfo *infoPtr = (WaitRestrictInfo *) clientData;

    if (eventPtr->type == ReparentNotify) {
	return TK_PROCESS_EVENT;
    }
    if (((eventPtr->xany.window != infoPtr->wmInfoPtr->wrapperPtr->window)
	    && (eventPtr->xany.window != infoPtr->wmInfoPtr->reparent))
	    || (eventPtr->xany.display != infoPtr->display)) {
	return TK_DEFER_EVENT;
    }
    if (eventPtr->type == infoPtr->type) {
	*infoPtr->eventPtr = *eventPtr;
	infoPtr->foundEvent = 1;
	return TK_PROCESS_EVENT;
    }
    if (eventPtr->type == ConfigureNotify) {
	return TK_PROCESS_EVENT;
    }
    return TK_DEFER_EVENT;
}

/*
 *----------------------------------------------------------------------
 *
 * WaitForMapNotify --
 *
 *	This procedure is invoked in order to synchronize with the
 *	window manager.  It waits for the window's mapped state to
 *	reach the value given by mapped.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Delays the execution of the process until winPtr becomes mapped
 *	or unmapped, depending on the "mapped" argument.  This allows us
 *	to synchronize with the window manager, and allows us to
 *	identify changes in window size that come about when the window
 *	manager first starts managing the window (as opposed to those
 *	requested interactively by the user later).  See the comments
 *	for WaitForConfigureNotify and WM_SYNC_PENDING.  While waiting,
 *	all events covered by StructureNotifyMask are processed and all
 *	others are deferred.
 *
 *----------------------------------------------------------------------
 */

static void
WaitForMapNotify(winPtr, mapped)
    TkWindow *winPtr;		/* Top-level window for which we want
				 * to see a particular mapping state. */
    int mapped;			/* If non-zero, wait for window to become
				 * mapped, otherwise wait for it to become
				 * unmapped. */
{
    WmInfo *wmPtr = winPtr->wmInfoPtr;
    XEvent event;
    int code;

    while (1) {
	if (mapped) {
	    if (winPtr->flags & TK_MAPPED) {
		break;
	    }
	} else if (!(winPtr->flags & TK_MAPPED)) {
	    break;
	}
	wmPtr->flags |= WM_SYNC_PENDING;
	code = WaitForEvent(winPtr->display, wmPtr,
		mapped ? MapNotify : UnmapNotify, &event);
	wmPtr->flags &= ~WM_SYNC_PENDING;
	if (code != TCL_OK) {
	    /*
	     * There are some bizarre situations in which the window
	     * manager can't respond or chooses not to (e.g. if we've
	     * got a grab set it can't respond).  If this happens then
	     * just quit.
	     */

	    if (winPtr->dispPtr->wmTracing) {
		printf("WaitForMapNotify giving up on %s\n", winPtr->pathName);
	    }
	    break;
	}
    }
    wmPtr->flags &= ~WM_MOVE_PENDING;
    if (winPtr->dispPtr->wmTracing) {
	printf("WaitForMapNotify finished with %s (winPtr %p, wmPtr %p)\n",
		winPtr->pathName, winPtr, wmPtr);
    }
}

/*
 *--------------------------------------------------------------
 *
 * UpdateHints --
 *
 *	This procedure is called to update the window manager's
 *	hints information from the information in a WmInfo
 *	structure.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Properties get changed for winPtr.
 *
 *--------------------------------------------------------------
 */

static void
UpdateHints(winPtr)
    TkWindow *winPtr;
{
    WmInfo *wmPtr = winPtr->wmInfoPtr;

    if (wmPtr->flags & WM_NEVER_MAPPED) {
	return;
    }
    XSetWMHints(winPtr->display, wmPtr->wrapperPtr->window, &wmPtr->hints);
}

/*
 *--------------------------------------------------------------
 *
 * ParseGeometry --
 *
 *	This procedure parses a geometry string and updates
 *	information used to control the geometry of a top-level
 *	window.
 *
 * Results:
 *	A standard Tcl return value, plus an error message in
 *	the interp's result if an error occurs.
 *
 * Side effects:
 *	The size and/or location of winPtr may change.
 *
 *--------------------------------------------------------------
 */

static int
ParseGeometry(interp, string, winPtr)
    Tcl_Interp *interp;		/* Used for error reporting. */
    char *string;		/* String containing new geometry.  Has the
				 * standard form "=wxh+x+y". */
    TkWindow *winPtr;		/* Pointer to top-level window whose
				 * geometry is to be changed. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    int x, y, width, height, flags;
    char *end;
    register char *p = string;

    /*
     * The leading "=" is optional.
     */

    if (*p == '=') {
	p++;
    }

    /*
     * Parse the width and height, if they are present.  Don't
     * actually update any of the fields of wmPtr until we've
     * successfully parsed the entire geometry string.
     */

    width = wmPtr->width;
    height = wmPtr->height;
    x = wmPtr->x;
    y = wmPtr->y;
    flags = wmPtr->flags;
    if (isdigit(UCHAR(*p))) {
	width = strtoul(p, &end, 10);
	p = end;
	if (*p != 'x') {
	    goto error;
	}
	p++;
	if (!isdigit(UCHAR(*p))) {
	    goto error;
	}
	height = strtoul(p, &end, 10);
	p = end;
    }

    /*
     * Parse the X and Y coordinates, if they are present.
     */

    if (*p != '\0') {
	flags &= ~(WM_NEGATIVE_X | WM_NEGATIVE_Y);
	if (*p == '-') {
	    flags |= WM_NEGATIVE_X;
	} else if (*p != '+') {
	    goto error;
	}
	p++;
	if (!isdigit(UCHAR(*p)) && (*p != '-')) {
	    goto error;
	}
	x = strtol(p, &end, 10);
	p = end;
	if (*p == '-') {
	    flags |= WM_NEGATIVE_Y;
	} else if (*p != '+') {
	    goto error;
	}
	p++;
	if (!isdigit(UCHAR(*p)) && (*p != '-')) {
	    goto error;
	}
	y = strtol(p, &end, 10);
	if (*end != '\0') {
	    goto error;
	}

	/*
	 * Assume that the geometry information came from the user,
	 * unless an explicit source has been specified.  Otherwise
	 * most window managers assume that the size hints were
	 * program-specified and they ignore them.
	 */

	if ((wmPtr->sizeHintsFlags & (USPosition|PPosition)) == 0) {
	    wmPtr->sizeHintsFlags |= USPosition;
	    flags |= WM_UPDATE_SIZE_HINTS;
	}
    }

    /*
     * Everything was parsed OK.  Update the fields of *wmPtr and
     * arrange for the appropriate information to be percolated out
     * to the window manager at the next idle moment.
     */

    wmPtr->width = width;
    wmPtr->height = height;
    wmPtr->x = x;
    wmPtr->y = y;
    flags |= WM_MOVE_PENDING;
    wmPtr->flags = flags;

    if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
	Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr);
	wmPtr->flags |= WM_UPDATE_PENDING;
    }
    return TCL_OK;

    error:
    Tcl_AppendResult(interp, "bad geometry specifier \"",
	    string, "\"", (char *) NULL);
    return TCL_ERROR;
}

/*
 *----------------------------------------------------------------------
 *
 * Tk_GetRootCoords --
 *
 *	Given a token for a window, this procedure traces through the
 *	window's lineage to find the (virtual) root-window coordinates
 *	corresponding to point (0,0) in the window.
 *
 * Results:
 *	The locations pointed to by xPtr and yPtr are filled in with
 *	the root coordinates of the (0,0) point in tkwin.  If a virtual
 *	root window is in effect for the window, then the coordinates
 *	in the virtual root are returned.
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

void
Tk_GetRootCoords(tkwin, xPtr, yPtr)
    Tk_Window tkwin;		/* Token for window. */
    int *xPtr;			/* Where to store x-displacement of (0,0). */
    int *yPtr;			/* Where to store y-displacement of (0,0). */
{
    int x, y;
    register TkWindow *winPtr = (TkWindow *) tkwin;

    /*
     * Search back through this window's parents all the way to a
     * top-level window, combining the offsets of each window within
     * its parent.
     */

    x = y = 0;
    while (1) {
	x += winPtr->changes.x + winPtr->changes.border_width;
	y += winPtr->changes.y + winPtr->changes.border_width;
	if ((winPtr->wmInfoPtr != NULL)
		&& (winPtr->wmInfoPtr->menubar == (Tk_Window) winPtr)) {
	    /*
	     * This window is a special menubar; switch over to its
	     * associated toplevel, compensate for their differences in
	     * y coordinates, then continue with the toplevel (in case
	     * it's embedded).
	     */

	    y -= winPtr->wmInfoPtr->menuHeight;
	    winPtr = winPtr->wmInfoPtr->winPtr;
	    continue;
	}
	if (winPtr->flags & TK_TOP_LEVEL) {
	    TkWindow *otherPtr;

	    if (!(winPtr->flags & TK_EMBEDDED)) {
		break;
	    }
	    otherPtr = TkpGetOtherWindow(winPtr);
	    if (otherPtr == NULL) {
		/*
		 * The container window is not in the same application.
		 * Query the X server.
		 */

		Window root, dummyChild;
		int rootX, rootY;

		root = winPtr->wmInfoPtr->vRoot;
		if (root == None) {
		    root = RootWindowOfScreen(Tk_Screen((Tk_Window)winPtr));
		}
		XTranslateCoordinates(winPtr->display, winPtr->window, 
		    root, 0, 0, &rootX, &rootY, &dummyChild);
		x += rootX;
		y += rootY;
		break;
	    } else {
		/*
		 * The container window is in the same application.
		 * Let's query its coordinates.
		 */

		winPtr = otherPtr;
		continue;
	    }
	}
	winPtr = winPtr->parentPtr;
	if (winPtr == NULL) {
	    break;
	}
    }
    *xPtr = x;
    *yPtr = y;
}

/*
 *----------------------------------------------------------------------
 *
 * Tk_CoordsToWindow --
 *
 *	Given the (virtual) root coordinates of a point, this procedure
 *	returns the token for the top-most window covering that point,
 *	if there exists such a window in this application.
 *
 * Results:
 *	The return result is either a token for the window corresponding
 *	to rootX and rootY, or else NULL to indicate that there is no such
 *	window.
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

Tk_Window
Tk_CoordsToWindow(rootX, rootY, tkwin)
    int rootX, rootY;		/* Coordinates of point in root window.  If
				 * a virtual-root window manager is in use,
				 * these coordinates refer to the virtual
				 * root, not the real root. */
    Tk_Window tkwin;		/* Token for any window in application;
				 * used to identify the display. */
{
    Window window, parent, child;
    int x, y, childX, childY, tmpx, tmpy, bd;
    WmInfo *wmPtr;
    TkWindow *winPtr, *childPtr, *nextPtr;
    TkDisplay *dispPtr = ((TkWindow *) tkwin)->dispPtr;
    Tk_ErrorHandler handler = NULL;

    /*
     * Step 1: scan the list of toplevel windows to see if there is a
     * virtual root for the screen we're interested in.  If so, we have
     * to translate the coordinates from virtual root to root
     * coordinates.
     */

    parent = window = RootWindowOfScreen(Tk_Screen(tkwin));
    x = rootX;
    y = rootY;
    for (wmPtr = (WmInfo *) dispPtr->firstWmPtr; wmPtr != NULL; wmPtr = wmPtr->nextPtr) {
	if (Tk_Screen(wmPtr->winPtr) != Tk_Screen(tkwin)) {
	    continue;
	}
	if (wmPtr->vRoot == None) {
	    continue;
	}
	UpdateVRootGeometry(wmPtr);
	parent = wmPtr->vRoot;
	break;
    }

    /*
     * Step 2: work down through the window hierarchy starting at the
     * root. For each window, find the child that contains the given
     * point and then see if this child is either a wrapper for one of
     * our toplevel windows or a window manager decoration window for
     * one of our toplevels.  This approach handles several tricky
     * cases:
     *
     * 1. There may be a virtual root window between the root and one of
     *    our toplevels.
     * 2. If a toplevel is embedded, we may have to search through the
     *    windows of the container application(s) before getting to
     *    the toplevel.
     */

    handler = Tk_CreateErrorHandler(Tk_Display(tkwin), -1, -1, -1,
	    (Tk_ErrorProc *) NULL, (ClientData) NULL);
    while (1) {
	if (XTranslateCoordinates(Tk_Display(tkwin), parent, window,
		x, y, &childX, &childY, &child) == False) {
	    /*
	     * We can end up here when the window is in the middle of
	     * being deleted
	     */
	    Tk_DeleteErrorHandler(handler);
	    return NULL;
	}
	if (child == None) {
	    Tk_DeleteErrorHandler(handler);
	    return NULL;
	}
	for (wmPtr = (WmInfo *) dispPtr->firstWmPtr; wmPtr != NULL; 
                wmPtr = wmPtr->nextPtr) {
	    if (wmPtr->reparent == child) {
		goto gotToplevel;
	    }
	    if (wmPtr->wrapperPtr != NULL) {
		if (child == wmPtr->wrapperPtr->window) {
		    goto gotToplevel;
		}
	    } else if (child == wmPtr->winPtr->window) {
		goto gotToplevel;
	    }
	}
	x = childX;
	y = childY;
	parent = window;
	window = child;
    }

    gotToplevel:
    if (handler) {
	/*
	 * Check value of handler, because we can reach this label
	 * from above or below
	 */
	Tk_DeleteErrorHandler(handler);
	handler = NULL;
    }
    winPtr = wmPtr->winPtr;
    if (winPtr->mainPtr != ((TkWindow *) tkwin)->mainPtr) {
	return NULL;
    }

    /*
     * Step 3: at this point winPtr and wmPtr refer to the toplevel that
     * contains the given coordinates, and childX and childY give the
     * translated coordinates in the *parent* of the toplevel.  Now
     * decide whether the coordinates are in the menubar or the actual
     * toplevel, and translate the coordinates into the coordinate
     * system of that window.
     */

    x = childX - winPtr->changes.x;
    y = childY - winPtr->changes.y;
    if ((x < 0) || (x >= winPtr->changes.width)
	    || (y >= winPtr->changes.height)) {
	return NULL;
    }
    if (y < 0) {
	winPtr = (TkWindow *) wmPtr->menubar;
	if (winPtr == NULL) {
	    return NULL;
	}
	y += wmPtr->menuHeight;
	if (y < 0) {
	    return NULL;
	}
    }

    /*
     * Step 4: work down through the hierarchy underneath the current
     * window. At each level, scan through all the children to find the
     * highest one in the stacking order that contains the point.  Then
     * repeat the whole process on that child.
     */

    while (1) {
	nextPtr = NULL;
	for (childPtr = winPtr->childList; childPtr != NULL;
		childPtr = childPtr->nextPtr) {
	    if (!Tk_IsMapped(childPtr) || (childPtr->flags & TK_TOP_LEVEL)) {
		continue;
	    }
	    if (childPtr->flags & TK_REPARENTED) {
		continue;
	    }
	    tmpx = x - childPtr->changes.x;
	    tmpy = y - childPtr->changes.y;
	    bd = childPtr->changes.border_width;
	    if ((tmpx >= -bd) && (tmpy >= -bd)
		    && (tmpx < (childPtr->changes.width + bd))
		    && (tmpy < (childPtr->changes.height + bd))) {
		nextPtr = childPtr;
	    }
	}
	if (nextPtr == NULL) {
	    break;
	}
	winPtr = nextPtr;
	x -= winPtr->changes.x;
	y -= winPtr->changes.y;
	if ((winPtr->flags & TK_CONTAINER)
		&& (winPtr->flags & TK_BOTH_HALVES)) {
	    /*
	     * The window containing the point is a container, and the
	     * embedded application is in this same process.  Switch
	     * over to the toplevel for the embedded application and
	     * start processing that toplevel from scratch.
	     */

	    winPtr = TkpGetOtherWindow(winPtr);
	    wmPtr = winPtr->wmInfoPtr;
	    childX = x;
	    childY = y;
	    goto gotToplevel;
	}
    }
    return (Tk_Window) winPtr;
}

/*
 *----------------------------------------------------------------------
 *
 * UpdateVRootGeometry --
 *
 *	This procedure is called to update all the virtual root
 *	geometry information in wmPtr.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	The vRootX, vRootY, vRootWidth, and vRootHeight fields in
 *	wmPtr are filled with the most up-to-date information.
 *
 *----------------------------------------------------------------------
 */

static void
UpdateVRootGeometry(wmPtr)
    WmInfo *wmPtr;		/* Window manager information to be
				 * updated.  The wmPtr->vRoot field must
				 * be valid. */
{
    TkWindow *winPtr = wmPtr->winPtr;
    int bd;
    unsigned int dummy;
    Window dummy2;
    Status status;
    Tk_ErrorHandler handler;

    /*
     * If this isn't a virtual-root window manager, just return information
     * about the screen.
     */

    wmPtr->flags &= ~WM_VROOT_OFFSET_STALE;
    if (wmPtr->vRoot == None) {
	noVRoot:
	wmPtr->vRootX = wmPtr->vRootY = 0;
	wmPtr->vRootWidth = DisplayWidth(winPtr->display, winPtr->screenNum);
	wmPtr->vRootHeight = DisplayHeight(winPtr->display, winPtr->screenNum);
	return;
    }

    /*
     * Refresh the virtual root information if it's out of date.
     */

    handler = Tk_CreateErrorHandler(winPtr->display, -1, -1, -1,
	    (Tk_ErrorProc *) NULL, (ClientData) NULL);
    status = XGetGeometry(winPtr->display, wmPtr->vRoot,
	    &dummy2, &wmPtr->vRootX, &wmPtr->vRootY,
	    (unsigned int *) &wmPtr->vRootWidth,
	    (unsigned int *) &wmPtr->vRootHeight, (unsigned int *) &bd,
	    &dummy);
    if (winPtr->dispPtr->wmTracing) {
	printf("UpdateVRootGeometry: x = %d, y = %d, width = %d, ",
		wmPtr->vRootX, wmPtr->vRootY, wmPtr->vRootWidth);
	printf("height = %d, status = %d\n", wmPtr->vRootHeight, status);
    }
    Tk_DeleteErrorHandler(handler);
    if (status == 0) {
	/*
	 * The virtual root is gone!  Pretend that it never existed.
	 */

	wmPtr->vRoot = None;
	goto noVRoot;
    }
}

/*
 *----------------------------------------------------------------------
 *
 * Tk_GetVRootGeometry --
 *
 *	This procedure returns information about the virtual root
 *	window corresponding to a particular Tk window.
 *
 * Results:
 *	The values at xPtr, yPtr, widthPtr, and heightPtr are set
 *	with the offset and dimensions of the root window corresponding
 *	to tkwin.  If tkwin is being managed by a virtual root window
 *	manager these values correspond to the virtual root window being
 *	used for tkwin;  otherwise the offsets will be 0 and the
 *	dimensions will be those of the screen.
 *
 * Side effects:
 *	Vroot window information is refreshed if it is out of date.
 *
 *----------------------------------------------------------------------
 */

void
Tk_GetVRootGeometry(tkwin, xPtr, yPtr, widthPtr, heightPtr)
    Tk_Window tkwin;		/* Window whose virtual root is to be
				 * queried. */
    int *xPtr, *yPtr;		/* Store x and y offsets of virtual root
				 * here. */
    int *widthPtr, *heightPtr;	/* Store dimensions of virtual root here. */
{
    WmInfo *wmPtr;
    TkWindow *winPtr = (TkWindow *) tkwin;

    /*
     * Find the top-level window for tkwin, and locate the window manager
     * information for that window.
     */

    while (!(winPtr->flags & TK_TOP_LEVEL) && (winPtr->parentPtr != NULL)) {
	winPtr = winPtr->parentPtr;
    }
    wmPtr = winPtr->wmInfoPtr;

    /*
     * Make sure that the geometry information is up-to-date, then copy
     * it out to the caller.
     */

    if (wmPtr->flags & WM_VROOT_OFFSET_STALE) {
	UpdateVRootGeometry(wmPtr);
    }
    *xPtr = wmPtr->vRootX;
    *yPtr = wmPtr->vRootY;
    *widthPtr = wmPtr->vRootWidth;
    *heightPtr = wmPtr->vRootHeight;
}

/*
 *----------------------------------------------------------------------
 *
 * Tk_MoveToplevelWindow --
 *
 *	This procedure is called instead of Tk_MoveWindow to adjust
 *	the x-y location of a top-level window.  It delays the actual
 *	move to a later time and keeps window-manager information
 *	up-to-date with the move
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	The window is eventually moved so that its upper-left corner
 *	(actually, the upper-left corner of the window's decorative
 *	frame, if there is one) is at (x,y).
 *
 *----------------------------------------------------------------------
 */

void
Tk_MoveToplevelWindow(tkwin, x, y)
    Tk_Window tkwin;		/* Window to move. */
    int x, y;			/* New location for window (within
				 * parent). */
{
    TkWindow *winPtr = (TkWindow *) tkwin;
    register WmInfo *wmPtr = winPtr->wmInfoPtr;

    if (!(winPtr->flags & TK_TOP_LEVEL)) {
	panic("Tk_MoveToplevelWindow called with non-toplevel window");
    }
    wmPtr->x = x;
    wmPtr->y = y;
    wmPtr->flags |= WM_MOVE_PENDING;
    wmPtr->flags &= ~(WM_NEGATIVE_X|WM_NEGATIVE_Y);
    if ((wmPtr->sizeHintsFlags & (USPosition|PPosition)) == 0) {
	wmPtr->sizeHintsFlags |= USPosition;
	wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
    }

    /*
     * If the window has already been mapped, must bring its geometry
     * up-to-date immediately, otherwise an event might arrive from the
     * server that would overwrite wmPtr->x and wmPtr->y and lose the
     * new position.
     */

    if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
	if (wmPtr->flags & WM_UPDATE_PENDING) {
	    Tcl_CancelIdleCall(UpdateGeometryInfo, (ClientData) winPtr);
	}
	UpdateGeometryInfo((ClientData) winPtr);
    }
}

/*
 *----------------------------------------------------------------------
 *
 * UpdateWmProtocols --
 *
 *	This procedure transfers the most up-to-date information about
 *	window manager protocols from the WmInfo structure to the actual
 *	property on the top-level window.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	The WM_PROTOCOLS property gets changed for wmPtr's window.
 *
 *----------------------------------------------------------------------
 */

static void
UpdateWmProtocols(wmPtr)
    register WmInfo *wmPtr;	/* Information about top-level window. */
{
    register ProtocolHandler *protPtr;
    Atom deleteWindowAtom;
    int count;
    Atom *arrayPtr, *atomPtr;

    /*
     * There are only two tricky parts here.  First, there could be any
     * number of atoms for the window, so count them and malloc an array
     * to hold all of their atoms.  Second, we *always* want to respond
     * to the WM_DELETE_WINDOW protocol, even if no-one's officially asked.
     */

    for (protPtr = wmPtr->protPtr, count = 1; protPtr != NULL;
	    protPtr = protPtr->nextPtr, count++) {
	/* Empty loop body;  we're just counting the handlers. */
    }
    arrayPtr = (Atom *) ckalloc((unsigned) (count * sizeof(Atom)));
    deleteWindowAtom = Tk_InternAtom((Tk_Window) wmPtr->winPtr,
	    "WM_DELETE_WINDOW");
    arrayPtr[0] = deleteWindowAtom;
    for (protPtr = wmPtr->protPtr, atomPtr = &arrayPtr[1];
	    protPtr != NULL; protPtr = protPtr->nextPtr) {
	if (protPtr->protocol != deleteWindowAtom) {
	    *atomPtr = protPtr->protocol;
	    atomPtr++;
	}
    }
    XChangeProperty(wmPtr->winPtr->display, wmPtr->wrapperPtr->window,
	    Tk_InternAtom((Tk_Window) wmPtr->winPtr, "WM_PROTOCOLS"),
	    XA_ATOM, 32, PropModeReplace, (unsigned char *) arrayPtr,
	    atomPtr-arrayPtr);
    ckfree((char *) arrayPtr);
}

/*
 *----------------------------------------------------------------------
 *
 * TkWmProtocolEventProc --
 *
 *	This procedure is called by the Tk_HandleEvent whenever a
 *	ClientMessage event arrives whose type is "WM_PROTOCOLS".
 *	This procedure handles the message from the window manager
 *	in an appropriate fashion.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Depends on what sort of handler, if any, was set up for the
 *	protocol.
 *
 *----------------------------------------------------------------------
 */

void
TkWmProtocolEventProc(winPtr, eventPtr)
    TkWindow *winPtr;		/* Window to which the event was sent. */
    XEvent *eventPtr;		/* X event. */
{
    WmInfo *wmPtr;
    register ProtocolHandler *protPtr;
    Atom protocol;
    int result;
    char *protocolName;
    Tcl_Interp *interp;

    wmPtr = winPtr->wmInfoPtr;
    if (wmPtr == NULL) {
	return;
    }
    protocol = (Atom) eventPtr->xclient.data.l[0];

    /*
     * Note: it's very important to retrieve the protocol name now,
     * before invoking the command, even though the name won't be used
     * until after the command returns.  This is because the command
     * could delete winPtr, making it impossible for us to use it
     * later in the call to Tk_GetAtomName.
     */

    protocolName = Tk_GetAtomName((Tk_Window) winPtr, protocol);
    for (protPtr = wmPtr->protPtr; protPtr != NULL;
	    protPtr = protPtr->nextPtr) {
	if (protocol == protPtr->protocol) {
	    Tcl_Preserve((ClientData) protPtr);
            interp = protPtr->interp;
            Tcl_Preserve((ClientData) interp);
	    result = Tcl_GlobalEval(interp, protPtr->command);
	    if (result != TCL_OK) {
		Tcl_AddErrorInfo(interp, "\n    (command for \"");
		Tcl_AddErrorInfo(interp, protocolName);
		Tcl_AddErrorInfo(interp,
			"\" window manager protocol)");
		Tcl_BackgroundError(interp);
	    }
            Tcl_Release((ClientData) interp);
	    Tcl_Release((ClientData) protPtr);
	    return;
	}
    }

    /*
     * No handler was present for this protocol.  If this is a
     * WM_DELETE_WINDOW message then just destroy the window.
     */

    if (protocol == Tk_InternAtom((Tk_Window) winPtr, "WM_DELETE_WINDOW")) {
	Tk_DestroyWindow((Tk_Window) wmPtr->winPtr);
    }
}

/*
 *----------------------------------------------------------------------
 *
 * TkWmStackorderToplevelWrapperMap --
 *
 *	This procedure will create a table that maps the reparent wrapper
 *	X id for a toplevel to the TkWindow structure that is wraps.
 *	Tk keeps track of a mapping from the window X id to the TkWindow
 *	structure but that does us no good here since we only get the X
 *	id of the wrapper window. Only those toplevel windows that are
 *	mapped have a position in the stacking order.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Adds entries to the passed hashtable.
 *
 *----------------------------------------------------------------------
 */

static void
TkWmStackorderToplevelWrapperMap(winPtr, table)
    TkWindow *winPtr;				/* TkWindow to recurse on */
    Tcl_HashTable *table;			/* Maps X id to TkWindow */
{
    TkWindow *childPtr;
    Tcl_HashEntry *hPtr;
    Window wrapper;
    int newEntry;

    if (Tk_IsMapped(winPtr) && Tk_IsTopLevel(winPtr) &&
            !Tk_IsEmbedded(winPtr)) {
        wrapper = (winPtr->wmInfoPtr->reparent != None)
            ? winPtr->wmInfoPtr->reparent
            : winPtr->wmInfoPtr->wrapperPtr->window;

        hPtr = Tcl_CreateHashEntry(table,
            (char *) wrapper, &newEntry);
        Tcl_SetHashValue(hPtr, winPtr);
    }

    for (childPtr = winPtr->childList; childPtr != NULL;
            childPtr = childPtr->nextPtr) {
        TkWmStackorderToplevelWrapperMap(childPtr, table);
    }
}

/*
 *----------------------------------------------------------------------
 *
 * TkWmStackorderToplevel --
 *
 *	This procedure returns the stack order of toplevel windows.
 *
 * Results:
 *	An array of pointers to tk window objects in stacking order
 *	or else NULL if there was an error.
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

TkWindow **
TkWmStackorderToplevel(parentPtr)
    TkWindow *parentPtr;		/* Parent toplevel window. */
{
    Window dummy1, dummy2, vRoot;
    Window *children;
    unsigned int numChildren, i;
    TkWindow *childWinPtr, **windows, **window_ptr;
    Tcl_HashTable table;
    Tcl_HashEntry *hPtr;
    Tcl_HashSearch search;

    /*
     * Map X Window ids to a TkWindow of the wrapped toplevel.
     */

    Tcl_InitHashTable(&table, TCL_ONE_WORD_KEYS);
    TkWmStackorderToplevelWrapperMap(parentPtr, &table);

    window_ptr = windows = (TkWindow **) ckalloc((table.numEntries+1)
        * sizeof(TkWindow *));

    /*
     * Special cases: If zero or one toplevels were mapped
     * there is no need to call XQueryTree.
     */

    switch (table.numEntries) {
    case 0:
        windows[0] = NULL;
        goto done;
    case 1:
        hPtr = Tcl_FirstHashEntry(&table, &search);
        windows[0] = (TkWindow *) Tcl_GetHashValue(hPtr);
        windows[1] = NULL;
        goto done;
    }

    vRoot = parentPtr->wmInfoPtr->vRoot;
    if (vRoot == None) {
        vRoot = RootWindowOfScreen(Tk_Screen((Tk_Window) parentPtr));
    }

    if (XQueryTree(parentPtr->display, vRoot, &dummy1, &dummy2,
            &children, &numChildren) == 0) {
        ckfree((char *) windows);
        windows = NULL;
    } else {
        for (i = 0; i < numChildren; i++) {
            hPtr = Tcl_FindHashEntry(&table, (char *) children[i]);
            if (hPtr != NULL) {
                childWinPtr = (TkWindow *) Tcl_GetHashValue(hPtr);
                *window_ptr++ = childWinPtr;
            }
        }
        if ((window_ptr - windows) != table.numEntries)
            panic("num matched toplevel windows does not equal num children");
        *window_ptr = NULL;
	if (numChildren) {
	    XFree((char *) children);
	}
    }

    done:
    Tcl_DeleteHashTable(&table);
    return windows;
}

/*
 *----------------------------------------------------------------------
 *
 * TkWmRestackToplevel --
 *
 *	This procedure restacks a top-level window.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	WinPtr gets restacked  as specified by aboveBelow and otherPtr.
 *	This procedure doesn't return until the restack has taken
 *	effect and the ConfigureNotify event for it has been received.
 *
 *----------------------------------------------------------------------
 */

void
TkWmRestackToplevel(winPtr, aboveBelow, otherPtr)
    TkWindow *winPtr;		/* Window to restack. */
    int aboveBelow;		/* Gives relative position for restacking;
				 * must be Above or Below. */
    TkWindow *otherPtr;		/* Window relative to which to restack;
				 * if NULL, then winPtr gets restacked
				 * above or below *all* siblings. */
{
    XWindowChanges changes;
    XWindowAttributes atts;
    unsigned int mask;
    Window window, dummy1, dummy2, vRoot;
    Window *children;
    unsigned int numChildren;
    int i;
    int desiredIndex = 0;	/* Initialized to stop gcc warnings. */
    int ourIndex = 0;		/* Initialized to stop gcc warnings. */
    unsigned long serial;
    Tk_ErrorHandler handler;
    TkWindow *wrapperPtr;

    memset(&changes, 0, sizeof(XWindowChanges));
    changes.stack_mode = aboveBelow;
    changes.sibling = None;
    mask = CWStackMode;
    if (winPtr->window == None) {
	Tk_MakeWindowExist((Tk_Window) winPtr);
    }
    if (winPtr->wmInfoPtr->flags & WM_NEVER_MAPPED) {
	/*
	 * Can't set stacking order properly until the window is on the
	 * screen (mapping it may give it a reparent window), so make sure
	 * it's on the screen.
	 */

	TkWmMapWindow(winPtr);
    }
    wrapperPtr = winPtr->wmInfoPtr->wrapperPtr;
    window = (winPtr->wmInfoPtr->reparent != None)
	    ? winPtr->wmInfoPtr->reparent : wrapperPtr->window;
    if (otherPtr != NULL) {
	if (otherPtr->window == None) {
	    Tk_MakeWindowExist((Tk_Window) otherPtr);
	}
	if (otherPtr->wmInfoPtr->flags & WM_NEVER_MAPPED) {
	    TkWmMapWindow(otherPtr);
	}
	changes.sibling = (otherPtr->wmInfoPtr->reparent != None)
		? otherPtr->wmInfoPtr->reparent
		: otherPtr->wmInfoPtr->wrapperPtr->window;
	mask = CWStackMode|CWSibling;
    }

    /*
     * Before actually reconfiguring the window, see if it's already
     * in the right place.  If so then don't reconfigure it.  The
     * reason for this extra work is that some window managers will
     * ignore the reconfigure request if the window is already in
     * the right place, causing a long delay in WaitForConfigureNotify
     * while it times out.  Special note: if the window is almost in
     * the right place, and the only windows between it and the right
     * place aren't mapped, then we don't reconfigure it either, for
     * the same reason.
     */

    vRoot = winPtr->wmInfoPtr->vRoot;
    if (vRoot == None) {
	vRoot = RootWindowOfScreen(Tk_Screen((Tk_Window) winPtr));
    }
    if (XQueryTree(winPtr->display, vRoot, &dummy1, &dummy2,
	    &children, &numChildren) != 0) {
	/*
	 * Find where our window is in the stacking order, and
	 * compute the desired location in the stacking order.
	 */

	for (i = 0; i < numChildren; i++) {
	    if (children[i] == window) {
		ourIndex = i;
	    }
	    if (children[i] == changes.sibling) {
		desiredIndex = i;
	    }
	}
	if (mask & CWSibling) {
	    if (aboveBelow == Above) {
		if (desiredIndex < ourIndex) {
		    desiredIndex += 1;
		}
	    } else {
		if (desiredIndex > ourIndex) {
		    desiredIndex -= 1;
		}
	    }
	} else {
	    if (aboveBelow == Above) {
		desiredIndex = numChildren-1;
	    } else {
		desiredIndex = 0;
	    }
	}

	/*
	 * See if there are any mapped windows between where we are
	 * and where we want to be.
	 */

	handler = Tk_CreateErrorHandler(winPtr->display, -1, -1, -1,
		(Tk_ErrorProc *) NULL, (ClientData) NULL);
	while (desiredIndex != ourIndex) {
	    if ((XGetWindowAttributes(winPtr->display, children[desiredIndex],
		    &atts) != 0) && (atts.map_state != IsUnmapped)) {
		break;
	    }
	    if (desiredIndex < ourIndex) {
		desiredIndex++;
	    } else {
		desiredIndex--;
	    }
	}
	Tk_DeleteErrorHandler(handler);
	XFree((char *) children);
	if (ourIndex == desiredIndex) {
	    return;
	}
    }

    /*
     * Reconfigure the window.  This tricky because of two things:
     * (a) Some window managers, like olvwm, insist that we raise
     *     or lower the toplevel window itself, as opposed to its
     *     decorative frame.  Attempts to raise or lower the frame
     *     are ignored.
     * (b) If the raise or lower is relative to a sibling, X will
     *     generate an error unless we work with the frames (the
     *     toplevels themselves aren't siblings).
     * Fortunately, the procedure XReconfigureWMWindow is supposed
     * to handle all of this stuff, so be careful to use it instead
     * of XConfigureWindow.
     */

    serial = NextRequest(winPtr->display);
    if (window != wrapperPtr->window) {
	/*
	 * We're going to have to wait for events on a window that
	 * Tk doesn't own, so we have to tell X specially that we
	 * want to get events on that window.  To make matters worse,
	 * it's possible that the window doesn't exist anymore (e.g.
	 * the toplevel could have been withdrawn) so ignore events
	 * occurring during the request.
	 */

	handler = Tk_CreateErrorHandler(winPtr->display, -1, -1, -1,
		(Tk_ErrorProc *) NULL, (ClientData) NULL);
	XSelectInput(winPtr->display, window, StructureNotifyMask);
	Tk_DeleteErrorHandler(handler);
    }
    XReconfigureWMWindow(winPtr->display, wrapperPtr->window,
	    Tk_ScreenNumber((Tk_Window) winPtr), mask,  &changes);

    /*
     * Wait for the reconfiguration to complete.  If we don't wait, then
     * the window may not restack for a while and the application might
     * observe it before it has restacked.  Waiting for the reconfiguration
     * is tricky if winPtr has been reparented, since the window getting
     * the event isn't one that Tk owns.
     */

    WaitForConfigureNotify(winPtr, serial);

    if (window != wrapperPtr->window) {
	/*
	 * Ignore errors that occur when we are de-selecting events on
	 * window, since it's possible that the window doesn't exist
	 * anymore (see comment above previous call to XSelectInput).
	 */

	handler = Tk_CreateErrorHandler(winPtr->display, -1, -1, -1,
		(Tk_ErrorProc *) NULL, (ClientData) NULL);
	XSelectInput(winPtr->display, window, (long) 0);
	Tk_DeleteErrorHandler(handler);
    }
}

/*
 *----------------------------------------------------------------------
 *
 * TkWmAddToColormapWindows --
 *
 *	This procedure is called to add a given window to the
 *	WM_COLORMAP_WINDOWS property for its top-level, if it
 *	isn't already there.  It is invoked by the Tk code that
 *	creates a new colormap, in order to make sure that colormap
 *	information is propagated to the window manager by default.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	WinPtr's window gets added to the WM_COLORMAP_WINDOWS
 *	property of its nearest top-level ancestor, unless the
 *	colormaps have been set explicitly with the
 *	"wm colormapwindows" command.
 *
 *----------------------------------------------------------------------
 */

void
TkWmAddToColormapWindows(winPtr)
    TkWindow *winPtr;		/* Window with a non-default colormap.
				 * Should not be a top-level window. */
{
    TkWindow *wrapperPtr;
    TkWindow *topPtr;
    Window *oldPtr, *newPtr;
    int count, i;

    if (winPtr->window == None) {
	return;
    }

    for (topPtr = winPtr->parentPtr; ; topPtr = topPtr->parentPtr) {
	if (topPtr == NULL) {
	    /*
	     * Window is being deleted.  Skip the whole operation.
	     */

	    return;
	}
	if (topPtr->flags & TK_TOP_LEVEL) {
	    break;
	}
    }
    if (topPtr->wmInfoPtr->flags & WM_COLORMAPS_EXPLICIT) {
	return;
    }
    if (topPtr->wmInfoPtr->wrapperPtr == NULL) {
	CreateWrapper(topPtr->wmInfoPtr);
    }
    wrapperPtr = topPtr->wmInfoPtr->wrapperPtr;

    /*
     * Fetch the old value of the property.
     */

    if (XGetWMColormapWindows(topPtr->display, wrapperPtr->window,
	    &oldPtr, &count) == 0) {
	oldPtr = NULL;
	count = 0;
    }

    /*
     * Make sure that the window isn't already in the list.
     */

    for (i = 0; i < count; i++) {
	if (oldPtr[i] == winPtr->window) {
	    return;
	}
    }

    /*
     * Make a new bigger array and use it to reset the property.
     * Automatically add the toplevel itself as the last element
     * of the list.
     */

    newPtr = (Window *) ckalloc((unsigned) ((count+2)*sizeof(Window)));
    for (i = 0; i < count; i++) {
	newPtr[i] = oldPtr[i];
    }
    if (count == 0) {
	count++;
    }
    newPtr[count-1] = winPtr->window;
    newPtr[count] = topPtr->window;
    XSetWMColormapWindows(topPtr->display, wrapperPtr->window, newPtr,
	    count+1);
    ckfree((char *) newPtr);
    if (oldPtr != NULL) {
	XFree((char *) oldPtr);
    }
}

/*
 *----------------------------------------------------------------------
 *
 * TkWmRemoveFromColormapWindows --
 *
 *	This procedure is called to remove a given window from the
 *	WM_COLORMAP_WINDOWS property for its top-level.  It is invoked
 *	when windows are deleted.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	WinPtr's window gets removed from the WM_COLORMAP_WINDOWS
 *	property of its nearest top-level ancestor, unless the
 *	top-level itself is being deleted too.
 *
 *----------------------------------------------------------------------
 */

void
TkWmRemoveFromColormapWindows(winPtr)
    TkWindow *winPtr;		/* Window that may be present in
				 * WM_COLORMAP_WINDOWS property for its
				 * top-level.  Should not be a top-level
				 * window. */
{
    TkWindow *wrapperPtr;
    TkWindow *topPtr;
    Window *oldPtr;
    int count, i, j;

    if (winPtr->window == None) {
	return;
    }

    for (topPtr = winPtr->parentPtr; ; topPtr = topPtr->parentPtr) {
	if (topPtr == NULL) {
	    /*
	     * Ancestors have been deleted, so skip the whole operation.
	     * Seems like this can't ever happen?
	     */

	    return;
	}
	if (topPtr->flags & TK_TOP_LEVEL) {
	    break;
	}
    }
    if (topPtr->flags & TK_ALREADY_DEAD) {
	/*
	 * Top-level is being deleted, so there's no need to cleanup
	 * the WM_COLORMAP_WINDOWS property.
	 */

	return;
    }
    if (topPtr->wmInfoPtr->wrapperPtr == NULL) {
	CreateWrapper(topPtr->wmInfoPtr);
    }
    wrapperPtr = topPtr->wmInfoPtr->wrapperPtr;
    if (wrapperPtr == NULL) {
	return;
    }

    /*
     * Fetch the old value of the property.
     */

    if (XGetWMColormapWindows(topPtr->display, wrapperPtr->window,
	    &oldPtr, &count) == 0) {
	return;
    }

    /*
     * Find the window and slide the following ones down to cover
     * it up.
     */

    for (i = 0; i < count; i++) {
	if (oldPtr[i] == winPtr->window) {
	    for (j = i ; j < count-1; j++) {
		oldPtr[j] = oldPtr[j+1];
	    }
	    XSetWMColormapWindows(topPtr->display, wrapperPtr->window,
		    oldPtr, count-1);
	    break;
	}
    }
    XFree((char *) oldPtr);
}

/*
 *----------------------------------------------------------------------
 *
 * TkGetPointerCoords --
 *
 *	Fetch the position of the mouse pointer.
 *
 * Results:
 *	*xPtr and *yPtr are filled in with the (virtual) root coordinates
 *	of the mouse pointer for tkwin's display.  If the pointer isn't
 *	on tkwin's screen, then -1 values are returned for both
 *	coordinates.  The argument tkwin must be a toplevel window.
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

void
TkGetPointerCoords(tkwin, xPtr, yPtr)
    Tk_Window tkwin;		/* Toplevel window that identifies screen
				 * on which lookup is to be done. */
    int *xPtr, *yPtr;		/* Store pointer coordinates here. */
{
    TkWindow *winPtr = (TkWindow *) tkwin;
    WmInfo *wmPtr;
    Window w, root, child;
    int rootX, rootY;
    unsigned int mask;

    wmPtr = winPtr->wmInfoPtr;

    w = wmPtr->vRoot;
    if (w == None) {
	w = RootWindow(winPtr->display, winPtr->screenNum);
    }
    if (XQueryPointer(winPtr->display, w, &root, &child, &rootX, &rootY,
	    xPtr, yPtr, &mask) != True) {
	*xPtr = -1;
	*yPtr = -1;
    }
}

/*
 *----------------------------------------------------------------------
 *
 * GetMaxSize --
 *
 *	This procedure computes the current maxWidth and maxHeight
 *	values for a window, taking into account the possibility
 *	that they may be defaulted.
 *
 * Results:
 *	The values at *maxWidthPtr and *maxHeightPtr are filled
 *	in with the maximum allowable dimensions of wmPtr's window,
 *	in grid units.  If no maximum has been specified for the
 *	window, then this procedure computes the largest sizes that
 *	will fit on the screen.
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

static void
GetMaxSize(wmPtr, maxWidthPtr, maxHeightPtr)
    WmInfo *wmPtr;		/* Window manager information for the
				 * window. */
    int *maxWidthPtr;		/* Where to store the current maximum
				 * width of the window. */
    int *maxHeightPtr;		/* Where to store the current maximum
				 * height of the window. */
{
    int tmp;

    if (wmPtr->maxWidth > 0) {
	*maxWidthPtr = wmPtr->maxWidth;
    } else {
	/*
	 * Must compute a default width.  Fill up the display, leaving a
	 * bit of extra space for the window manager's borders.
	 */

	tmp = DisplayWidth(wmPtr->winPtr->display, wmPtr->winPtr->screenNum)
	    - 15;
	if (wmPtr->gridWin != NULL) {
	    /*
	     * Gridding is turned on;  convert from pixels to grid units.
	     */

	    tmp = wmPtr->reqGridWidth
		    + (tmp - wmPtr->winPtr->reqWidth)/wmPtr->widthInc;
	}
	*maxWidthPtr = tmp;
    }
    if (wmPtr->maxHeight > 0) {
	*maxHeightPtr = wmPtr->maxHeight;
    } else {
	tmp = DisplayHeight(wmPtr->winPtr->display, wmPtr->winPtr->screenNum)
	    - 30;
	if (wmPtr->gridWin != NULL) {
	    tmp = wmPtr->reqGridHeight
		    + (tmp - wmPtr->winPtr->reqHeight)/wmPtr->heightInc;
	}
	*maxHeightPtr = tmp;
    }
}

/*
 *----------------------------------------------------------------------
 *
 * TkpMakeMenuWindow --
 *
 *	Configure the window to be either a pull-down (or pop-up)
 *	menu, or as a toplevel (torn-off) menu or palette.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Changes the style bit used to create a new Mac toplevel.
 *
 *----------------------------------------------------------------------
 */

void
TkpMakeMenuWindow(tkwin, transient)
    Tk_Window tkwin;		/* New window. */
    int transient;		/* 1 means menu is only posted briefly as
				 * a popup or pulldown or cascade.  0 means
				 * menu is always visible, e.g. as a torn-off
				 * menu.  Determines whether save_under and
				 * override_redirect should be set. */
{
    WmInfo *wmPtr;
    XSetWindowAttributes atts;
    TkWindow *wrapperPtr;

    if (!Tk_IsTopLevel(tkwin)) {
	return;
    }
    wmPtr = ((TkWindow *) tkwin)->wmInfoPtr;
    if (wmPtr->wrapperPtr == NULL) {
	CreateWrapper(wmPtr);
    }
    wrapperPtr = wmPtr->wrapperPtr;
    if (transient) {
	atts.override_redirect = True;
	atts.save_under = True;
    } else {
	atts.override_redirect = False;
	atts.save_under = False;
    }

    /*
     * The override-redirect and save-under bits must be set on the
     * wrapper window in order to have the desired effect.  However,
     * also set the override-redirect bit on the window itself, so
     * that the "wm overrideredirect" command will see it.
     */

    if ((atts.override_redirect != Tk_Attributes(wrapperPtr)->override_redirect)
	    || (atts.save_under != Tk_Attributes(wrapperPtr)->save_under)) {
	Tk_ChangeWindowAttributes((Tk_Window) wrapperPtr,
		CWOverrideRedirect|CWSaveUnder, &atts);
    }
    if (atts.override_redirect != Tk_Attributes(tkwin)->override_redirect) {
	Tk_ChangeWindowAttributes(tkwin, CWOverrideRedirect, &atts);
    }
}

/*
 *----------------------------------------------------------------------
 *
 * CreateWrapper --
 *
 *	This procedure is invoked to create the wrapper window for a
 *	toplevel window.  It is called just before a toplevel is mapped
 *	for the first time.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	The wrapper is created and the toplevel is reparented inside it.
 *
 *----------------------------------------------------------------------
 */

static void
CreateWrapper(wmPtr)
    WmInfo *wmPtr;		/* Window manager information for the
				 * window. */
{
    TkWindow *winPtr, *wrapperPtr;
    Window parent;
    Tcl_HashEntry *hPtr;
    int new;

    winPtr = wmPtr->winPtr;
    if (winPtr->window == None) {
	Tk_MakeWindowExist((Tk_Window) winPtr);
    }

    /*
     * The code below is copied from CreateTopLevelWindow,
     * Tk_MakeWindowExist, and TkpMakeWindow; The idea is to create an
     * "official" Tk window (so that we can get events on it), but to
     * hide the window outside the official Tk hierarchy so that it
     * isn't visible to the application.  See the comments for the other
     * procedures if you have questions about this code.
     */

    wmPtr->wrapperPtr = wrapperPtr = TkAllocWindow(winPtr->dispPtr,
	    Tk_ScreenNumber((Tk_Window) winPtr), winPtr);
    wrapperPtr->dirtyAtts |= CWBorderPixel;

    /*
     * Tk doesn't normally select for StructureNotifyMask events because
     * the events are synthesized internally.  However, for wrapper
     * windows we need to know when the window manager modifies the
     * window configuration.  We also need to select on focus change
     * events; these are the only windows for which we care about focus
     * changes.
     */

    wrapperPtr->flags |= TK_WRAPPER;
    wrapperPtr->atts.event_mask |= StructureNotifyMask|FocusChangeMask;
    wrapperPtr->atts.override_redirect = winPtr->atts.override_redirect;
    if (winPtr->flags & TK_EMBEDDED) {
	parent = TkUnixContainerId(winPtr);
    } else {
	parent = XRootWindow(wrapperPtr->display, wrapperPtr->screenNum);
    }
    wrapperPtr->window = XCreateWindow(wrapperPtr->display,
	    parent, wrapperPtr->changes.x, wrapperPtr->changes.y,
	    (unsigned) wrapperPtr->changes.width,
	    (unsigned) wrapperPtr->changes.height,
	    (unsigned) wrapperPtr->changes.border_width, wrapperPtr->depth,
	    InputOutput, wrapperPtr->visual,
	    wrapperPtr->dirtyAtts|CWOverrideRedirect, &wrapperPtr->atts);
    hPtr = Tcl_CreateHashEntry(&wrapperPtr->dispPtr->winTable,
	    (char *) wrapperPtr->window, &new);
    Tcl_SetHashValue(hPtr, wrapperPtr);
    wrapperPtr->mainPtr = winPtr->mainPtr;
    wrapperPtr->mainPtr->refCount++;
    wrapperPtr->dirtyAtts = 0;
    wrapperPtr->dirtyChanges = 0;
    wrapperPtr->wmInfoPtr = wmPtr;

    /*
     * Reparent the toplevel window inside the wrapper.
     */

    XReparentWindow(wrapperPtr->display, winPtr->window, wrapperPtr->window,
	    0, 0);

    /*
     * Tk must monitor structure events for wrapper windows in order
     * to detect changes made by window managers such as resizing,
     * mapping, unmapping, etc..
     */

    Tk_CreateEventHandler((Tk_Window) wmPtr->wrapperPtr, StructureNotifyMask,
	    WrapperEventProc, (ClientData) wmPtr);
}

/*
 *----------------------------------------------------------------------
 *
 * TkWmFocusToplevel --
 *
 *	This is a utility procedure invoked by focus-management code.
 *	The focus code responds to externally generated focus-related
 *	events on wrapper windows but ignores those events for any other
 *	windows.  This procedure determines whether a given window is a
 *	wrapper window and, if so, returns the toplevel window
 *	corresponding to the wrapper.
 *
 * Results:
 *	If winPtr is a wrapper window, returns a pointer to the
 *	corresponding toplevel window; otherwise returns NULL.
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

TkWindow *
TkWmFocusToplevel(winPtr)
    TkWindow *winPtr;		/* Window that received a focus-related
				 * event. */
{
    if (!(winPtr->flags & TK_WRAPPER)) {
	return NULL;
    }
    return winPtr->wmInfoPtr->winPtr;
}

/*
 *----------------------------------------------------------------------
 *
 * TkUnixSetMenubar --
 *
 *	This procedure is invoked by menu management code to specify the
 *	window to use as a menubar for a given toplevel window.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	The window given by menubar will be mapped and positioned inside
 *	the wrapper for tkwin and above tkwin.  Menubar will
 *	automatically be resized to maintain the height specified by
 *	TkUnixSetMenuHeight the same width as tkwin.  Any previous
 *	menubar specified for tkwin will be unmapped and ignored from
 *	now on.
 *
 *----------------------------------------------------------------------
 */

void
TkUnixSetMenubar(tkwin, menubar)
    Tk_Window tkwin;		/* Token for toplevel window. */
    Tk_Window menubar;		/* Token for window that is to serve as
				 * menubar for tkwin.  Must not be a
				 * toplevel window.  If NULL, any
				 * existing menubar is canceled and the
				 * menu height is reset to 0. */
{
    WmInfo *wmPtr = ((TkWindow *) tkwin)->wmInfoPtr;
    Tk_Window parent;
    TkWindow *menubarPtr = (TkWindow *) menubar;

    if (wmPtr->menubar != NULL) {
	/*
	 * There's already a menubar for this toplevel.  If it isn't the
	 * same as the new menubar, unmap it so that it is out of the
	 * way, and reparent it back to its original parent.
	 */

	if (wmPtr->menubar == menubar) {
	    return;
	}
	((TkWindow *) wmPtr->menubar)->wmInfoPtr = NULL;
	((TkWindow *) wmPtr->menubar)->flags &= ~TK_REPARENTED;
	Tk_UnmapWindow(wmPtr->menubar);
	parent = Tk_Parent(wmPtr->menubar);
	if (parent != NULL) {
	    Tk_MakeWindowExist(parent);
	    XReparentWindow(Tk_Display(wmPtr->menubar),
		    Tk_WindowId(wmPtr->menubar), Tk_WindowId(parent), 0, 0);
	}
	Tk_DeleteEventHandler(wmPtr->menubar, StructureNotifyMask,
		MenubarDestroyProc, (ClientData) wmPtr->menubar);
	Tk_ManageGeometry(wmPtr->menubar, NULL, (ClientData) NULL);
    }

    wmPtr->menubar = menubar;
    if (menubar == NULL) {
	wmPtr->menuHeight = 0;
    } else {
	if ((menubarPtr->flags & TK_TOP_LEVEL)
	     || (Tk_Screen(menubar) != Tk_Screen(tkwin))) {
	    panic("TkUnixSetMenubar got bad menubar");
	}
	wmPtr->menuHeight = Tk_ReqHeight(menubar);
	if (wmPtr->menuHeight == 0) {
	    wmPtr->menuHeight = 1;
	}
	Tk_MakeWindowExist(tkwin);
	Tk_MakeWindowExist(menubar);
	if (wmPtr->wrapperPtr == NULL) {
	    CreateWrapper(wmPtr);
	}
	XReparentWindow(Tk_Display(menubar), Tk_WindowId(menubar),
		wmPtr->wrapperPtr->window, 0, 0);
	menubarPtr->wmInfoPtr = wmPtr;
	Tk_MoveResizeWindow(menubar, 0, 0, Tk_Width(tkwin), wmPtr->menuHeight);
	Tk_MapWindow(menubar);
	Tk_CreateEventHandler(menubar, StructureNotifyMask, MenubarDestroyProc,
		(ClientData) menubar);
	Tk_ManageGeometry(menubar, &menubarMgrType, (ClientData) wmPtr);
	menubarPtr->flags |= TK_REPARENTED;
    }
    wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
    if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
	Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) tkwin);
	wmPtr->flags |= WM_UPDATE_PENDING;
    }
}

/*
 *----------------------------------------------------------------------
 *
 * MenubarDestroyProc --
 *
 *	This procedure is invoked by the event dispatcher whenever a
 *	menubar window is destroyed (it's also invoked for a few other
 *	kinds of events, but we ignore those).
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	The association between the window and its toplevel is broken,
 *	so that the window is no longer considered to be a menubar.
 *
 *----------------------------------------------------------------------
 */

static void
MenubarDestroyProc(clientData, eventPtr)
    ClientData clientData;		/* TkWindow pointer for menubar. */
    XEvent *eventPtr;			/* Describes what just happened. */
{
    WmInfo *wmPtr;

    if (eventPtr->type != DestroyNotify) {
	return;
    }
    wmPtr = ((TkWindow *) clientData)->wmInfoPtr;
    wmPtr->menubar = NULL;
    wmPtr->menuHeight = 0;
    wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
    if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
	Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) wmPtr->winPtr);
	wmPtr->flags |= WM_UPDATE_PENDING;
    }
}

/*
 *----------------------------------------------------------------------
 *
 * MenubarReqProc --
 *
 *	This procedure is invoked by the Tk geometry management code
 *	whenever a menubar calls Tk_GeometryRequest to request a new
 *	size.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

static void
MenubarReqProc(clientData, tkwin)
    ClientData clientData;	/* Pointer to the window manager
				 * information for tkwin's toplevel. */
    Tk_Window tkwin;		/* Handle for menubar window. */
{
    WmInfo *wmPtr = (WmInfo *) clientData;

    wmPtr->menuHeight = Tk_ReqHeight(tkwin);
    if (wmPtr->menuHeight <= 0) {
	wmPtr->menuHeight = 1;
    }
    wmPtr->flags |= WM_UPDATE_SIZE_HINTS;
    if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
	Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) wmPtr->winPtr);
	wmPtr->flags |= WM_UPDATE_PENDING;
    }
}

/*
 *----------------------------------------------------------------------
 *
 * TkpGetWrapperWindow --
 *
 *	Given a toplevel window return the hidden wrapper window for
 *	the toplevel window if available.
 *
 * Results:
 *	The wrapper window.  NULL is we were not passed a toplevel
 *	window or the wrapper has yet to be created.
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

TkWindow *
TkpGetWrapperWindow(winPtr)
    TkWindow *winPtr;		/* A toplevel window pointer. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;

    if ((winPtr == NULL) || (wmPtr == NULL)) {
	return NULL;
    }

    return wmPtr->wrapperPtr;
}

/*
 *----------------------------------------------------------------------
 *
 * UpdateCommand --
 *
 *	Update the WM_COMMAND property, taking care to translate
 *	the command strings into the external encoding.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

static void
UpdateCommand(winPtr)
    TkWindow  *winPtr;
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    Tcl_DString cmds, ds;
    int i, *offsets;
    char **cmdArgv;

    /*
     * Translate the argv strings into the external encoding.  To avoid
     * allocating lots of memory, the strings are appended to a buffer
     * with nulls between each string.
     *
     * This code is tricky because we need to pass and array of pointers
     * to XSetCommand.  However, we can't compute the pointers as we go
     * because the DString buffer space could get reallocated.  So, store
     * offsets for each element as we go, then compute pointers from the
     * offsets once the entire DString is done.
     */

    cmdArgv = (char **) ckalloc(sizeof(char *) * wmPtr->cmdArgc);
    offsets = (int *) ckalloc( sizeof(int) * wmPtr->cmdArgc);
    Tcl_DStringInit(&cmds);
    for (i = 0; i < wmPtr->cmdArgc; i++) {
	Tcl_UtfToExternalDString(NULL, wmPtr->cmdArgv[i], -1, &ds);
	offsets[i] = Tcl_DStringLength(&cmds);
	Tcl_DStringAppend(&cmds, Tcl_DStringValue(&ds),
		Tcl_DStringLength(&ds)+1);
	Tcl_DStringFree(&ds);
    }
    cmdArgv[0] = Tcl_DStringValue(&cmds);
    for (i = 1; i < wmPtr->cmdArgc; i++) {
	cmdArgv[i] = cmdArgv[0] + offsets[i];
    }

    XSetCommand(winPtr->display, wmPtr->wrapperPtr->window,
	    cmdArgv, wmPtr->cmdArgc);
    Tcl_DStringFree(&cmds);
    ckfree((char *) cmdArgv);
    ckfree((char *) offsets);
}

/*
 *----------------------------------------------------------------------
 *
 * TkpWmSetState --
 *
 *	Sets the window manager state for the wrapper window of a
 *	given toplevel window.
 *
 * Results:
 *	0 on error, 1 otherwise
 *
 * Side effects:
 *	May minimize, restore, or withdraw a window.
 *
 *----------------------------------------------------------------------
 */

int
TkpWmSetState(winPtr, state)
     TkWindow *winPtr;		/* Toplevel window to operate on. */
     int state;			/* One of IconicState, NormalState,
				 * or WithdrawnState. */
{
    WmInfo *wmPtr = winPtr->wmInfoPtr;

    if (state == WithdrawnState) {
        wmPtr->hints.initial_state = WithdrawnState;
        wmPtr->withdrawn = 1;
        if (wmPtr->flags & WM_NEVER_MAPPED) {
            return 1;
        }
        if (XWithdrawWindow(winPtr->display, wmPtr->wrapperPtr->window,
                winPtr->screenNum) == 0) {
            return 0;
        }
        WaitForMapNotify(winPtr, 0);
    } else if (state == NormalState) {
        wmPtr->hints.initial_state = NormalState;
        wmPtr->withdrawn = 0;
        if (wmPtr->flags & WM_NEVER_MAPPED) {
            return 1;
        }
        UpdateHints(winPtr);
        Tk_MapWindow((Tk_Window) winPtr);
    } else if (state == IconicState) {
        wmPtr->hints.initial_state = IconicState;
        if (wmPtr->flags & WM_NEVER_MAPPED) {
            return 1;
        }
        if (wmPtr->withdrawn) {
            UpdateHints(winPtr);
            Tk_MapWindow((Tk_Window) winPtr);
            wmPtr->withdrawn = 0;
        } else {
            if (XIconifyWindow(winPtr->display, wmPtr->wrapperPtr->window,
                    winPtr->screenNum) == 0) {
                return 0;
            }
            WaitForMapNotify(winPtr, 0);
        }
    }

    return 1;
}