Initial revision

FossilOrigin-Name: 2bf55ca9aa942b581137b9f474da5ad9c1480de4

1 files changed, 3057 insertions, 0 deletions

diff --git a/generic/tkMenu.c b/generic/tkMenu.c
new file mode 100644
index 0000000..05a6b4a
--- /dev/null
+++ b/generic/tkMenu.c
@@ -0,0 +1,3057 @@
+/* 
+ * tkMenu.c --
+ *
+ * This file contains most of the code for implementing menus in Tk. It takes
+ * care of all of the generic (platform-independent) parts of menus, and
+ * is supplemented by platform-specific files. The geometry calculation
+ * and drawing code for menus is in the file tkMenuDraw.c
+ *
+ * Copyright (c) 1990-1994 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.
+ *
+ * SCCS: @(#) tkMenu.c 1.148 97/10/29 09:22:00
+ */
+
+/*
+ * Notes on implementation of menus:
+ *
+ * Menus can be used in three ways:
+ * - as a popup menu, either as part of a menubutton or standalone.
+ * - as a menubar. The menu's cascade items are arranged according to
+ * the specific platform to provide the user access to the menus at all
+ * times
+ * - as a tearoff palette. This is a window with the menu's items in it.
+ *
+ * The goal is to provide the Tk developer with a way to use a common
+ * set of menus for all of these tasks.
+ *
+ * In order to make the bindings for cascade menus work properly under Unix,
+ * the cascade menus' pathnames must be proper children of the menu that
+ * they are cascade from. So if there is a menu .m, and it has two
+ * cascades labelled "File" and "Edit", the cascade menus might have
+ * the pathnames .m.file and .m.edit. Another constraint is that the menus
+ * used for menubars must be children of the toplevel widget that they
+ * are attached to. And on the Macintosh, the platform specific menu handle
+ * for cascades attached to a menu bar must have a title that matches the
+ * label for the cascade menu.
+ *
+ * To handle all of the constraints, Tk menubars and tearoff menus are
+ * implemented using menu clones. Menu clones are full menus in their own
+ * right; they have a Tk window and pathname associated with them; they have
+ * a TkMenu structure and array of entries. However, they are linked with the
+ * original menu that they were cloned from. The reflect the attributes of
+ * the original, or "master", menu. So if an item is added to a menu, and
+ * that menu has clones, then the item must be added to all of its clones
+ * also. Menus are cloned when a menu is torn-off or when a menu is assigned
+ * as a menubar using the "-menu" option of the toplevel's pathname configure
+ * subcommand. When a clone is destroyed, only the clone is destroyed, but
+ * when the master menu is destroyed, all clones are also destroyed. This
+ * allows the developer to just deal with one set of menus when creating
+ * and destroying.
+ *
+ * Clones are rather tricky when a menu with cascade entries is cloned (such
+ * as a menubar). Not only does the menu have to be cloned, but each cascade
+ * entry's corresponding menu must also be cloned. This maintains the pathname
+ * parent-child hierarchy necessary for menubars and toplevels to work.
+ * This leads to several special cases:
+ *
+ * 1. When a new menu is created, and it is pointed to by cascade entries in
+ * cloned menus, the new menu has to be cloned to parallel the cascade
+ * structure.
+ * 2. When a cascade item is added to a menu that has been cloned, and the
+ * menu that the cascade item points to exists, that menu has to be cloned.
+ * 3. When the menu that a cascade entry points to is changed, the old
+ * cloned cascade menu has to be discarded, and the new one has to be cloned.
+ *
+ */
+
+#include "tkPort.h"
+#include "tkMenu.h"
+
+#define MENU_HASH_KEY "tkMenus"
+
+static int menusInitialized;	/* Whether or not the hash tables, etc., have
+				 * been setup */
+
+/*
+ * Configuration specs for individual menu entries. If this changes, be sure
+ * to update code in TkpMenuInit that changes the font string entry.
+ */
+
+Tk_ConfigSpec tkMenuEntryConfigSpecs[] = {
+    {TK_CONFIG_BORDER, "-activebackground", (char *) NULL, (char *) NULL,
+	DEF_MENU_ENTRY_ACTIVE_BG, Tk_Offset(TkMenuEntry, activeBorder),
+	COMMAND_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|CASCADE_MASK
+	|TK_CONFIG_NULL_OK},
+    {TK_CONFIG_COLOR, "-activeforeground", (char *) NULL, (char *) NULL,
+	DEF_MENU_ENTRY_ACTIVE_FG, Tk_Offset(TkMenuEntry, activeFg),
+	COMMAND_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|CASCADE_MASK
+	|TK_CONFIG_NULL_OK},
+    {TK_CONFIG_STRING, "-accelerator", (char *) NULL, (char *) NULL,
+	DEF_MENU_ENTRY_ACCELERATOR, Tk_Offset(TkMenuEntry, accel),
+	COMMAND_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|CASCADE_MASK
+	|TK_CONFIG_NULL_OK},
+    {TK_CONFIG_BORDER, "-background", (char *) NULL, (char *) NULL,
+	DEF_MENU_ENTRY_BG, Tk_Offset(TkMenuEntry, border),
+	COMMAND_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|CASCADE_MASK
+	|SEPARATOR_MASK|TEAROFF_MASK|TK_CONFIG_NULL_OK},
+    {TK_CONFIG_BITMAP, "-bitmap", (char *) NULL, (char *) NULL,
+	DEF_MENU_ENTRY_BITMAP, Tk_Offset(TkMenuEntry, bitmap),
+	COMMAND_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|CASCADE_MASK
+	|TK_CONFIG_NULL_OK},
+    {TK_CONFIG_BOOLEAN, "-columnbreak", (char *) NULL, (char *) NULL,
+	DEF_MENU_ENTRY_COLUMN_BREAK, Tk_Offset(TkMenuEntry, columnBreak),
+	COMMAND_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|CASCADE_MASK},
+    {TK_CONFIG_STRING, "-command", (char *) NULL, (char *) NULL,
+	DEF_MENU_ENTRY_COMMAND, Tk_Offset(TkMenuEntry, command),
+	COMMAND_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|CASCADE_MASK
+	|TK_CONFIG_NULL_OK},
+    {TK_CONFIG_FONT, "-font", (char *) NULL, (char *) NULL,
+	DEF_MENU_ENTRY_FONT, Tk_Offset(TkMenuEntry, tkfont),
+	COMMAND_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|CASCADE_MASK
+	|TK_CONFIG_NULL_OK},
+    {TK_CONFIG_COLOR, "-foreground", (char *) NULL, (char *) NULL,
+	DEF_MENU_ENTRY_FG, Tk_Offset(TkMenuEntry, fg),
+	COMMAND_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|CASCADE_MASK
+	|TK_CONFIG_NULL_OK},
+    {TK_CONFIG_BOOLEAN, "-hidemargin", (char *) NULL, (char *) NULL,
+	DEF_MENU_ENTRY_HIDE_MARGIN, Tk_Offset(TkMenuEntry, hideMargin),
+	COMMAND_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|CASCADE_MASK
+	|SEPARATOR_MASK|TEAROFF_MASK},
+    {TK_CONFIG_STRING, "-image", (char *) NULL, (char *) NULL,
+	DEF_MENU_ENTRY_IMAGE, Tk_Offset(TkMenuEntry, imageString),
+	COMMAND_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|CASCADE_MASK
+	|TK_CONFIG_NULL_OK},
+    {TK_CONFIG_BOOLEAN, "-indicatoron", (char *) NULL, (char *) NULL,
+	DEF_MENU_ENTRY_INDICATOR, Tk_Offset(TkMenuEntry, indicatorOn),
+	CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|TK_CONFIG_DONT_SET_DEFAULT},
+    {TK_CONFIG_STRING, "-label", (char *) NULL, (char *) NULL,
+	DEF_MENU_ENTRY_LABEL, Tk_Offset(TkMenuEntry, label),
+	COMMAND_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|CASCADE_MASK},
+    {TK_CONFIG_STRING, "-menu", (char *) NULL, (char *) NULL,
+	DEF_MENU_ENTRY_MENU, Tk_Offset(TkMenuEntry, name),
+	CASCADE_MASK|TK_CONFIG_NULL_OK},
+    {TK_CONFIG_STRING, "-offvalue", (char *) NULL, (char *) NULL,
+	DEF_MENU_ENTRY_OFF_VALUE, Tk_Offset(TkMenuEntry, offValue),
+	CHECK_BUTTON_MASK},
+    {TK_CONFIG_STRING, "-onvalue", (char *) NULL, (char *) NULL,
+	DEF_MENU_ENTRY_ON_VALUE, Tk_Offset(TkMenuEntry, onValue),
+	CHECK_BUTTON_MASK},
+    {TK_CONFIG_COLOR, "-selectcolor", (char *) NULL, (char *) NULL,
+	DEF_MENU_ENTRY_SELECT, Tk_Offset(TkMenuEntry, indicatorFg),
+	CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|TK_CONFIG_NULL_OK},
+    {TK_CONFIG_STRING, "-selectimage", (char *) NULL, (char *) NULL,
+	DEF_MENU_ENTRY_SELECT_IMAGE, Tk_Offset(TkMenuEntry, selectImageString),
+	CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|TK_CONFIG_NULL_OK},
+    {TK_CONFIG_UID, "-state", (char *) NULL, (char *) NULL,
+	DEF_MENU_ENTRY_STATE, Tk_Offset(TkMenuEntry, state),
+	COMMAND_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|CASCADE_MASK
+	|TEAROFF_MASK|TK_CONFIG_DONT_SET_DEFAULT},
+    {TK_CONFIG_STRING, "-value", (char *) NULL, (char *) NULL,
+	DEF_MENU_ENTRY_VALUE, Tk_Offset(TkMenuEntry, onValue),
+	RADIO_BUTTON_MASK|TK_CONFIG_NULL_OK},
+    {TK_CONFIG_STRING, "-variable", (char *) NULL, (char *) NULL,
+	DEF_MENU_ENTRY_CHECK_VARIABLE, Tk_Offset(TkMenuEntry, name),
+	CHECK_BUTTON_MASK|TK_CONFIG_NULL_OK},
+    {TK_CONFIG_STRING, "-variable", (char *) NULL, (char *) NULL,
+	DEF_MENU_ENTRY_RADIO_VARIABLE, Tk_Offset(TkMenuEntry, name),
+	RADIO_BUTTON_MASK},
+    {TK_CONFIG_INT, "-underline", (char *) NULL, (char *) NULL,
+	DEF_MENU_ENTRY_UNDERLINE, Tk_Offset(TkMenuEntry, underline),
+	COMMAND_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|CASCADE_MASK
+	|TK_CONFIG_DONT_SET_DEFAULT},
+    {TK_CONFIG_END, (char *) NULL, (char *) NULL, (char *) NULL,
+	(char *) NULL, 0, 0}
+};
+
+/*
+ * Configuration specs valid for the menu as a whole. If this changes, be sure
+ * to update code in TkpMenuInit that changes the font string entry.
+ */
+
+Tk_ConfigSpec tkMenuConfigSpecs[] = {
+    {TK_CONFIG_BORDER, "-activebackground", "activeBackground", "Foreground",
+	DEF_MENU_ACTIVE_BG_COLOR, Tk_Offset(TkMenu, activeBorder),
+	TK_CONFIG_COLOR_ONLY},
+    {TK_CONFIG_BORDER, "-activebackground", "activeBackground", "Foreground",
+	DEF_MENU_ACTIVE_BG_MONO, Tk_Offset(TkMenu, activeBorder),
+	TK_CONFIG_MONO_ONLY},
+    {TK_CONFIG_PIXELS, "-activeborderwidth", "activeBorderWidth",
+        "BorderWidth", DEF_MENU_ACTIVE_BORDER_WIDTH,
+        Tk_Offset(TkMenu, activeBorderWidth), 0},
+    {TK_CONFIG_COLOR, "-activeforeground", "activeForeground", "Background",
+	DEF_MENU_ACTIVE_FG_COLOR, Tk_Offset(TkMenu, activeFg),
+	TK_CONFIG_COLOR_ONLY},
+    {TK_CONFIG_COLOR, "-activeforeground", "activeForeground", "Background",
+	DEF_MENU_ACTIVE_FG_MONO, Tk_Offset(TkMenu, activeFg),
+	TK_CONFIG_MONO_ONLY},
+    {TK_CONFIG_BORDER, "-background", "background", "Background",
+	DEF_MENU_BG_COLOR, Tk_Offset(TkMenu, border), TK_CONFIG_COLOR_ONLY},
+    {TK_CONFIG_BORDER, "-background", "background", "Background",
+	DEF_MENU_BG_MONO, Tk_Offset(TkMenu, border), TK_CONFIG_MONO_ONLY},
+    {TK_CONFIG_SYNONYM, "-bd", "borderWidth", (char *) NULL,
+	(char *) NULL, 0, 0},
+    {TK_CONFIG_SYNONYM, "-bg", "background", (char *) NULL,
+	(char *) NULL, 0, 0},
+    {TK_CONFIG_PIXELS, "-borderwidth", "borderWidth", "BorderWidth",
+	DEF_MENU_BORDER_WIDTH, Tk_Offset(TkMenu, borderWidth), 0},
+    {TK_CONFIG_ACTIVE_CURSOR, "-cursor", "cursor", "Cursor",
+	DEF_MENU_CURSOR, Tk_Offset(TkMenu, cursor), TK_CONFIG_NULL_OK},
+    {TK_CONFIG_COLOR, "-disabledforeground", "disabledForeground",
+	"DisabledForeground", DEF_MENU_DISABLED_FG_COLOR,
+	Tk_Offset(TkMenu, disabledFg), TK_CONFIG_COLOR_ONLY|TK_CONFIG_NULL_OK},
+    {TK_CONFIG_COLOR, "-disabledforeground", "disabledForeground",
+	"DisabledForeground", DEF_MENU_DISABLED_FG_MONO,
+	Tk_Offset(TkMenu, disabledFg), TK_CONFIG_MONO_ONLY|TK_CONFIG_NULL_OK},
+    {TK_CONFIG_SYNONYM, "-fg", "foreground", (char *) NULL,
+	(char *) NULL, 0, 0},
+    {TK_CONFIG_FONT, "-font", "font", "Font",
+	DEF_MENU_FONT, Tk_Offset(TkMenu, tkfont), 0},
+    {TK_CONFIG_COLOR, "-foreground", "foreground", "Foreground",
+	DEF_MENU_FG, Tk_Offset(TkMenu, fg), 0},
+    {TK_CONFIG_STRING, "-postcommand", "postCommand", "Command",
+	DEF_MENU_POST_COMMAND, Tk_Offset(TkMenu, postCommand),
+        TK_CONFIG_NULL_OK},
+    {TK_CONFIG_RELIEF, "-relief", "relief", "Relief",
+	DEF_MENU_RELIEF, Tk_Offset(TkMenu, relief), 0},
+    {TK_CONFIG_COLOR, "-selectcolor", "selectColor", "Background",
+	DEF_MENU_SELECT_COLOR, Tk_Offset(TkMenu, indicatorFg),
+	TK_CONFIG_COLOR_ONLY},
+    {TK_CONFIG_COLOR, "-selectcolor", "selectColor", "Background",
+	DEF_MENU_SELECT_MONO, Tk_Offset(TkMenu, indicatorFg),
+	TK_CONFIG_MONO_ONLY},
+    {TK_CONFIG_STRING, "-takefocus", "takeFocus", "TakeFocus",
+	DEF_MENU_TAKE_FOCUS, Tk_Offset(TkMenu, takeFocus), TK_CONFIG_NULL_OK},
+    {TK_CONFIG_BOOLEAN, "-tearoff", "tearOff", "TearOff",
+	DEF_MENU_TEAROFF, Tk_Offset(TkMenu, tearOff), 0},
+    {TK_CONFIG_STRING, "-tearoffcommand", "tearOffCommand", "TearOffCommand",
+	DEF_MENU_TEAROFF_CMD, Tk_Offset(TkMenu, tearOffCommand),
+	TK_CONFIG_NULL_OK},
+    {TK_CONFIG_STRING, "-title", "title", "Title",
+    	DEF_MENU_TITLE, Tk_Offset(TkMenu, title), TK_CONFIG_NULL_OK},
+    {TK_CONFIG_STRING, "-type", "type", "Type",
+	DEF_MENU_TYPE, Tk_Offset(TkMenu, menuTypeName), TK_CONFIG_NULL_OK},
+    {TK_CONFIG_END, (char *) NULL, (char *) NULL, (char *) NULL,
+	(char *) NULL, 0, 0}
+};
+
+/*
+ * Prototypes for static procedures in this file:
+ */
+
+static int		CloneMenu _ANSI_ARGS_((TkMenu *menuPtr,
+			    char *newMenuName, char *newMenuTypeString));
+static int		ConfigureMenu _ANSI_ARGS_((Tcl_Interp *interp,
+			    TkMenu *menuPtr, int argc, char **argv,
+			    int flags));
+static int		ConfigureMenuCloneEntries _ANSI_ARGS_((
+			    Tcl_Interp *interp, TkMenu *menuPtr, int index,
+			    int argc, char **argv, int flags));
+static int		ConfigureMenuEntry _ANSI_ARGS_((TkMenuEntry *mePtr,
+			    int argc, char **argv, int flags));
+static void		DeleteMenuCloneEntries _ANSI_ARGS_((TkMenu *menuPtr,
+			    int first, int last));
+static void		DestroyMenuHashTable _ANSI_ARGS_((
+			    ClientData clientData, Tcl_Interp *interp));
+static void		DestroyMenuInstance _ANSI_ARGS_((TkMenu *menuPtr));
+static void		DestroyMenuEntry _ANSI_ARGS_((char *memPtr));
+static int		GetIndexFromCoords
+			    _ANSI_ARGS_((Tcl_Interp *interp, TkMenu *menuPtr,
+			    char *string, int *indexPtr));
+static int		MenuDoYPosition _ANSI_ARGS_((Tcl_Interp *interp,
+			    TkMenu *menuPtr, char *arg));
+static int		MenuAddOrInsert _ANSI_ARGS_((Tcl_Interp *interp,
+			    TkMenu *menuPtr, char *indexString, int argc,
+			    char **argv));
+static void		MenuCmdDeletedProc _ANSI_ARGS_((
+			    ClientData clientData));
+static TkMenuEntry *	MenuNewEntry _ANSI_ARGS_((TkMenu *menuPtr, int index,
+			    int type));
+static char *		MenuVarProc _ANSI_ARGS_((ClientData clientData,
+			    Tcl_Interp *interp, char *name1, char *name2,
+			    int flags));
+static int		MenuWidgetCmd _ANSI_ARGS_((ClientData clientData,
+			    Tcl_Interp *interp, int argc, char **argv));
+static void		MenuWorldChanged _ANSI_ARGS_((
+			    ClientData instanceData));
+static void		RecursivelyDeleteMenu _ANSI_ARGS_((TkMenu *menuPtr));
+static void		UnhookCascadeEntry _ANSI_ARGS_((TkMenuEntry *mePtr));
+
+/*
+ * The structure below is a list of procs that respond to certain window
+ * manager events. One of these includes a font change, which forces
+ * the geometry proc to be called.
+ */
+
+static TkClassProcs menuClass = {
+    NULL,			/* createProc. */
+    MenuWorldChanged		/* geometryProc. */
+};
+
+
+
+/*
+ *--------------------------------------------------------------
+ *
+ * Tk_MenuCmd --
+ *
+ *	This procedure is invoked to process the "menu" Tcl
+ *	command.  See the user documentation for details on
+ *	what it does.
+ *
+ * Results:
+ *	A standard Tcl result.
+ *
+ * Side effects:
+ *	See the user documentation.
+ *
+ *--------------------------------------------------------------
+ */
+
+int
+Tk_MenuCmd(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;
+    Tk_Window new;
+    register TkMenu *menuPtr;
+    TkMenuReferences *menuRefPtr;
+    int i, len;
+    char *arg, c;
+    int toplevel;
+
+    if (argc < 2) {
+	Tcl_AppendResult(interp, "wrong # args: should be \"",
+		argv[0], " pathName ?options?\"", (char *) NULL);
+	return TCL_ERROR;
+    }
+
+    TkMenuInit();
+
+    toplevel = 1;
+    for (i = 2; i < argc; i += 2) {
+	arg = argv[i];
+	len = strlen(arg);
+	if (len < 2) {
+	    continue;
+	}
+	c = arg[1];
+	if ((c == 't') && (strncmp(arg, "-type", strlen(arg)) == 0)
+		&& (len >= 3)) {
+	    if (strcmp(argv[i + 1], "menubar") == 0) {
+		toplevel = 0;
+	    }
+	    break;
+	}
+    }
+
+    new = Tk_CreateWindowFromPath(interp, tkwin, argv[1], toplevel ? ""
+	    : NULL);
+    if (new == NULL) {
+	return TCL_ERROR;
+    }
+
+    /*
+     * Initialize the data structure for the menu.
+     */
+
+    menuPtr = (TkMenu *) ckalloc(sizeof(TkMenu));
+    menuPtr->tkwin = new;
+    menuPtr->display = Tk_Display(new);
+    menuPtr->interp = interp;
+    menuPtr->widgetCmd = Tcl_CreateCommand(interp,
+	    Tk_PathName(menuPtr->tkwin), MenuWidgetCmd,
+	    (ClientData) menuPtr, MenuCmdDeletedProc);
+    menuPtr->entries = NULL;
+    menuPtr->numEntries = 0;
+    menuPtr->active = -1;
+    menuPtr->border = NULL;
+    menuPtr->borderWidth = 0;
+    menuPtr->relief = TK_RELIEF_FLAT;
+    menuPtr->activeBorder = NULL;
+    menuPtr->activeBorderWidth = 0;
+    menuPtr->tkfont = NULL;
+    menuPtr->fg = NULL;
+    menuPtr->disabledFg = NULL;
+    menuPtr->activeFg = NULL;
+    menuPtr->indicatorFg = NULL;
+    menuPtr->tearOff = 1;
+    menuPtr->tearOffCommand = NULL;
+    menuPtr->cursor = None;
+    menuPtr->takeFocus = NULL;
+    menuPtr->postCommand = NULL;
+    menuPtr->postCommandGeneration = 0;
+    menuPtr->postedCascade = NULL;
+    menuPtr->nextInstancePtr = NULL;
+    menuPtr->masterMenuPtr = menuPtr;
+    menuPtr->menuType = UNKNOWN_TYPE;
+    menuPtr->menuFlags = 0;
+    menuPtr->parentTopLevelPtr = NULL;
+    menuPtr->menuTypeName = NULL;
+    menuPtr->title = NULL;
+    TkMenuInitializeDrawingFields(menuPtr);
+
+    menuRefPtr = TkCreateMenuReferences(menuPtr->interp,
+	    Tk_PathName(menuPtr->tkwin));
+    menuRefPtr->menuPtr = menuPtr;
+    menuPtr->menuRefPtr = menuRefPtr;
+    if (TCL_OK != TkpNewMenu(menuPtr)) {
+    	goto error;
+    }
+
+    Tk_SetClass(menuPtr->tkwin, "Menu");
+    TkSetClassProcs(menuPtr->tkwin, &menuClass, (ClientData) menuPtr);
+    Tk_CreateEventHandler(new, ExposureMask|StructureNotifyMask|ActivateMask,
+	    TkMenuEventProc, (ClientData) menuPtr);
+    if (ConfigureMenu(interp, menuPtr, argc-2, argv+2, 0) != TCL_OK) {
+	goto error;
+    }
+
+    /*
+     * If a menu has a parent menu pointing to it as a cascade entry, the
+     * parent menu needs to be told that this menu now exists so that
+     * the platform-part of the menu is correctly updated.
+     *
+     * If a menu has an instance and has cascade entries, then each cascade
+     * menu must also have a parallel instance. This is especially true on
+     * the Mac, where each menu has to have a separate title everytime it is in
+     * a menubar. For instance, say you have a menu .m1 with a cascade entry
+     * for .m2, where .m2 does not exist yet. You then put .m1 into a menubar.
+     * This creates a menubar instance for .m1, but since .m2 is not there,
+     * nothing else happens. When we go to create .m2, we hook it up properly
+     * with .m1. However, we now need to clone .m2 and assign the clone of .m2
+     * to be the cascade entry for the clone of .m1. This is special case
+     * #1 listed in the introductory comment.
+     */
+    
+    if (menuRefPtr->parentEntryPtr != NULL) {
+        TkMenuEntry *cascadeListPtr = menuRefPtr->parentEntryPtr;
+        TkMenuEntry *nextCascadePtr;
+        char *newMenuName;
+        char *newArgv[2];
+
+        while (cascadeListPtr != NULL) {
+
+	    nextCascadePtr = cascadeListPtr->nextCascadePtr;
+     
+     	    /*
+     	     * If we have a new master menu, and an existing cloned menu
+	     * points to this menu in a cascade entry, we have to clone
+	     * the new menu and point the entry to the clone instead
+	     * of the menu we are creating. Otherwise, ConfigureMenuEntry
+	     * will hook up the platform-specific cascade linkages now
+	     * that the menu we are creating exists.
+     	     */
+     	     
+     	    if ((menuPtr->masterMenuPtr != menuPtr)
+     	    	    || ((menuPtr->masterMenuPtr == menuPtr)
+     	    	    && ((cascadeListPtr->menuPtr->masterMenuPtr
+		    == cascadeListPtr->menuPtr)))) {
+		newArgv[0] = "-menu";
+		newArgv[1] = Tk_PathName(menuPtr->tkwin);
+     	    	ConfigureMenuEntry(cascadeListPtr, 2, newArgv,
+     	    	    TK_CONFIG_ARGV_ONLY);
+     	    } else {
+      	    	newMenuName = TkNewMenuName(menuPtr->interp,
+     	    		Tk_PathName(cascadeListPtr->menuPtr->tkwin),
+     	    		menuPtr);
+            	CloneMenu(menuPtr, newMenuName, "normal");
+    	            
+                /*
+                 * Now we can set the new menu instance to be the cascade entry
+                 * of the parent's instance.
+                 */
+
+		newArgv[0] = "-menu";
+                newArgv[1] = newMenuName;
+                ConfigureMenuEntry(cascadeListPtr, 2, newArgv, 
+                	TK_CONFIG_ARGV_ONLY);
+	        if (newMenuName != NULL) {
+	            ckfree(newMenuName);
+	        }
+            }
+            cascadeListPtr = nextCascadePtr;
+        }
+    }
+    
+    /*
+     * If there already exist toplevel widgets that refer to this menu,
+     * find them and notify them so that they can reconfigure their
+     * geometry to reflect the menu.
+     */
+ 
+    if (menuRefPtr->topLevelListPtr != NULL) {
+    	TkMenuTopLevelList *topLevelListPtr = menuRefPtr->topLevelListPtr;
+    	TkMenuTopLevelList *nextPtr;
+    	Tk_Window listtkwin;
+   	while (topLevelListPtr != NULL) {
+    	
+    	    /*
+    	     * Need to get the next pointer first. TkSetWindowMenuBar
+    	     * changes the list, so that the next pointer is different
+    	     * after calling it.
+    	     */
+    	
+    	    nextPtr = topLevelListPtr->nextPtr;
+    	    listtkwin = topLevelListPtr->tkwin;
+    	    TkSetWindowMenuBar(menuPtr->interp, listtkwin, 
+    	    	    Tk_PathName(menuPtr->tkwin), Tk_PathName(menuPtr->tkwin));
+    	    topLevelListPtr = nextPtr;
+    	}
+    }
+
+    interp->result = Tk_PathName(menuPtr->tkwin);
+    return TCL_OK;
+
+    error:
+    Tk_DestroyWindow(menuPtr->tkwin);
+    return TCL_ERROR;
+}
+
+/*
+ *--------------------------------------------------------------
+ *
+ * MenuWidgetCmd --
+ *
+ *	This procedure is invoked to process the Tcl command
+ *	that corresponds to a widget managed by this module.
+ *	See the user documentation for details on what it does.
+ *
+ * Results:
+ *	A standard Tcl result.
+ *
+ * Side effects:
+ *	See the user documentation.
+ *
+ *--------------------------------------------------------------
+ */
+
+static int
+MenuWidgetCmd(clientData, interp, argc, argv)
+    ClientData clientData;	/* Information about menu widget. */
+    Tcl_Interp *interp;		/* Current interpreter. */
+    int argc;			/* Number of arguments. */
+    char **argv;		/* Argument strings. */
+{
+    register TkMenu *menuPtr = (TkMenu *) clientData;
+    register TkMenuEntry *mePtr;
+    int result = TCL_OK;
+    size_t length;
+    int c;
+
+    if (argc < 2) {
+	Tcl_AppendResult(interp, "wrong # args: should be \"",
+		argv[0], " option ?arg arg ...?\"", (char *) NULL);
+	return TCL_ERROR;
+    }
+    Tcl_Preserve((ClientData) menuPtr);
+    c = argv[1][0];
+    length = strlen(argv[1]);
+    if ((c == 'a') && (strncmp(argv[1], "activate", length) == 0)
+	    && (length >= 2)) {
+	int index;
+
+	if (argc != 3) {
+	    Tcl_AppendResult(interp, "wrong # args: should be \"",
+		    argv[0], " activate index\"", (char *) NULL);
+	    goto error;
+	}
+	if (TkGetMenuIndex(interp, menuPtr, argv[2], 0, &index) != TCL_OK) {
+	    goto error;
+	}
+	if (menuPtr->active == index) {
+	    goto done;
+	}
+	if (index >= 0) {
+	    if ((menuPtr->entries[index]->type == SEPARATOR_ENTRY)
+		    || (menuPtr->entries[index]->state == tkDisabledUid)) {
+		index = -1;
+	    }
+	}
+	result = TkActivateMenuEntry(menuPtr, index);
+    } else if ((c == 'a') && (strncmp(argv[1], "add", length) == 0)
+	    && (length >= 2)) {
+	if (argc < 3) {
+	    Tcl_AppendResult(interp, "wrong # args: should be \"",
+		    argv[0], " add type ?options?\"", (char *) NULL);
+	    goto error;
+	}
+	if (MenuAddOrInsert(interp, menuPtr, (char *) NULL,
+		argc-2, argv+2) != TCL_OK) {
+	    goto error;
+	}
+    } else if ((c == 'c') && (strncmp(argv[1], "cget", length) == 0)
+	    && (length >= 2)) {
+	if (argc != 3) {
+	    Tcl_AppendResult(interp, "wrong # args: should be \"",
+		    argv[0], " cget option\"",
+		    (char *) NULL);
+	    goto error;
+	}
+	result = Tk_ConfigureValue(interp, menuPtr->tkwin, tkMenuConfigSpecs,
+		(char *) menuPtr, argv[2], 0);
+    } else if ((c == 'c') && (strncmp(argv[1], "clone", length) == 0)
+    	    && (length >=2)) {
+    	if ((argc < 3) || (argc > 4)) {
+    	    Tcl_AppendResult(interp, "wrong # args: should be \"",
+    	    	    argv[0], " clone newMenuName ?menuType?\"",
+    	    	    (char *) NULL);
+    	    goto error;
+    	}
+    	result = CloneMenu(menuPtr, argv[2], (argc == 3) ? NULL : argv[3]);
+    } else if ((c == 'c') && (strncmp(argv[1], "configure", length) == 0)
+	    && (length >= 2)) {
+	if (argc == 2) {
+	    result = Tk_ConfigureInfo(interp, menuPtr->tkwin,
+		    tkMenuConfigSpecs, (char *) menuPtr, (char *) NULL, 0);
+	} else if (argc == 3) {
+	    result = Tk_ConfigureInfo(interp, menuPtr->tkwin,
+		    tkMenuConfigSpecs, (char *) menuPtr, argv[2], 0);
+	} else {
+	    result = ConfigureMenu(interp, menuPtr, argc-2, argv+2,
+		    TK_CONFIG_ARGV_ONLY);
+	}
+    } else if ((c == 'd') && (strncmp(argv[1], "delete", length) == 0)) {
+	int first, last;
+
+	if ((argc != 3) && (argc != 4)) {
+	    Tcl_AppendResult(interp, "wrong # args: should be \"",
+		    argv[0], " delete first ?last?\"", (char *) NULL);
+	    goto error;
+	}
+	if (TkGetMenuIndex(interp, menuPtr, argv[2], 0, &first) != TCL_OK) {
+	    goto error;
+	}
+	if (argc == 3) {
+	    last = first;
+	} else {
+	    if (TkGetMenuIndex(interp, menuPtr, argv[3], 0, &last) != TCL_OK) {
+	        goto error;
+	    }
+	}
+	if (menuPtr->tearOff && (first == 0)) {
+
+	    /*
+	     * Sorry, can't delete the tearoff entry;  must reconfigure
+	     * the menu.
+	     */
+	    
+	    first = 1;
+	}
+	if ((first < 0) || (last < first)) {
+	    goto done;
+	}
+	DeleteMenuCloneEntries(menuPtr, first, last);
+    } else if ((c == 'e') && (length >= 7)
+	    && (strncmp(argv[1], "entrycget", length) == 0)) {
+	int index;
+
+	if (argc != 4) {
+	    Tcl_AppendResult(interp, "wrong # args: should be \"",
+		    argv[0], " entrycget index option\"",
+		    (char *) NULL);
+	    goto error;
+	}
+	if (TkGetMenuIndex(interp, menuPtr, argv[2], 0, &index) != TCL_OK) {
+	    goto error;
+	}
+	if (index < 0) {
+	    goto done;
+	}
+	mePtr = menuPtr->entries[index];
+	Tcl_Preserve((ClientData) mePtr);
+	result = Tk_ConfigureValue(interp, menuPtr->tkwin,
+		tkMenuEntryConfigSpecs, (char *) mePtr, argv[3],
+		COMMAND_MASK << mePtr->type);
+	Tcl_Release((ClientData) mePtr);
+    } else if ((c == 'e') && (length >= 7)
+	    && (strncmp(argv[1], "entryconfigure", length) == 0)) {
+	int index;
+
+	if (argc < 3) {
+	    Tcl_AppendResult(interp, "wrong # args: should be \"",
+		    argv[0], " entryconfigure index ?option value ...?\"",
+		    (char *) NULL);
+	    goto error;
+	}
+	if (TkGetMenuIndex(interp, menuPtr, argv[2], 0, &index) != TCL_OK) {
+	    goto error;
+	}
+	if (index < 0) {
+	    goto done;
+	}
+	mePtr = menuPtr->entries[index];
+	Tcl_Preserve((ClientData) mePtr);
+	if (argc == 3) {
+	    result = Tk_ConfigureInfo(interp, menuPtr->tkwin,
+		    tkMenuEntryConfigSpecs, (char *) mePtr, (char *) NULL,
+		    COMMAND_MASK << mePtr->type);
+	} else if (argc == 4) {
+	    result = Tk_ConfigureInfo(interp, menuPtr->tkwin,
+		    tkMenuEntryConfigSpecs, (char *) mePtr, argv[3],
+		    COMMAND_MASK << mePtr->type);
+	} else {
+	    result = ConfigureMenuCloneEntries(interp, menuPtr, index, 
+	    	    argc-3, argv+3, 
+	    	    TK_CONFIG_ARGV_ONLY | COMMAND_MASK << mePtr->type);
+	}
+	Tcl_Release((ClientData) mePtr);
+    } else if ((c == 'i') && (strncmp(argv[1], "index", length) == 0)
+	    && (length >= 3)) {
+	int index;
+
+	if (argc != 3) {
+	    Tcl_AppendResult(interp, "wrong # args: should be \"",
+		    argv[0], " index string\"", (char *) NULL);
+	    goto error;
+	}
+	if (TkGetMenuIndex(interp, menuPtr, argv[2], 0, &index) != TCL_OK) {
+	    goto error;
+	}
+	if (index < 0) {
+	    interp->result = "none";
+	} else {
+	    sprintf(interp->result, "%d", index);
+	}
+    } else if ((c == 'i') && (strncmp(argv[1], "insert", length) == 0)
+	    && (length >= 3)) {
+	if (argc < 4) {
+	    Tcl_AppendResult(interp, "wrong # args: should be \"",
+		    argv[0], " insert index type ?options?\"", (char *) NULL);
+	    goto error;
+	}
+	if (MenuAddOrInsert(interp, menuPtr, argv[2],
+		argc-3, argv+3) != TCL_OK) {
+	    goto error;
+	}
+    } else if ((c == 'i') && (strncmp(argv[1], "invoke", length) == 0)
+	    && (length >= 3)) {
+	int index;
+
+	if (argc != 3) {
+	    Tcl_AppendResult(interp, "wrong # args: should be \"",
+		    argv[0], " invoke index\"", (char *) NULL);
+	    goto error;
+	}
+	if (TkGetMenuIndex(interp, menuPtr, argv[2], 0, &index) != TCL_OK) {
+	    goto error;
+	}
+	if (index < 0) {
+	    goto done;
+	}
+	result = TkInvokeMenu(interp, menuPtr, index);
+    } else if ((c == 'p') && (strncmp(argv[1], "post", length) == 0)
+	    && (length == 4)) {
+	int x, y;
+
+	if (argc != 4) {
+	    Tcl_AppendResult(interp, "wrong # args: should be \"",
+		    argv[0], " post x y\"", (char *) NULL);
+	    goto error;
+	}
+	if ((Tcl_GetInt(interp, argv[2], &x) != TCL_OK)
+		|| (Tcl_GetInt(interp, argv[3], &y) != TCL_OK)) {
+	    goto error;
+	}
+
+	/*
+	 * Tearoff menus are posted differently on Mac and Windows than
+	 * non-tearoffs. TkpPostMenu does not actually map the menu's
+	 * window on those platforms, and popup menus have to be
+	 * handled specially.
+	 */
+	
+    	if (menuPtr->menuType != TEAROFF_MENU) {
+    	    result = TkpPostMenu(interp, menuPtr, x, y);
+    	} else {
+    	    result = TkPostTearoffMenu(interp, menuPtr, x, y);
+    	}
+    } else if ((c == 'p') && (strncmp(argv[1], "postcascade", length) == 0)
+	    && (length > 4)) {
+	int index;
+	if (argc != 3) {
+	    Tcl_AppendResult(interp, "wrong # args: should be \"",
+		    argv[0], " postcascade index\"", (char *) NULL);
+	    goto error;
+	}
+	if (TkGetMenuIndex(interp, menuPtr, argv[2], 0, &index) != TCL_OK) {
+	    goto error;
+	}
+	if ((index < 0) || (menuPtr->entries[index]->type != CASCADE_ENTRY)) {
+	    result = TkPostSubmenu(interp, menuPtr, (TkMenuEntry *) NULL);
+	} else {
+	    result = TkPostSubmenu(interp, menuPtr, menuPtr->entries[index]);
+	}
+    } else if ((c == 't') && (strncmp(argv[1], "type", length) == 0)) {
+	int index;
+	if (argc != 3) {
+	    Tcl_AppendResult(interp, "wrong # args: should be \"",
+		    argv[0], " type index\"", (char *) NULL);
+	    goto error;
+	}
+	if (TkGetMenuIndex(interp, menuPtr, argv[2], 0, &index) != TCL_OK) {
+	    goto error;
+	}
+	if (index < 0) {
+	    goto done;
+	}
+	mePtr = menuPtr->entries[index];
+	switch (mePtr->type) {
+	    case COMMAND_ENTRY:
+		interp->result = "command";
+		break;
+	    case SEPARATOR_ENTRY:
+		interp->result = "separator";
+		break;
+	    case CHECK_BUTTON_ENTRY:
+		interp->result = "checkbutton";
+		break;
+	    case RADIO_BUTTON_ENTRY:
+		interp->result = "radiobutton";
+		break;
+	    case CASCADE_ENTRY:
+		interp->result = "cascade";
+		break;
+	    case TEAROFF_ENTRY:
+		interp->result = "tearoff";
+		break;
+	}
+    } else if ((c == 'u') && (strncmp(argv[1], "unpost", length) == 0)) {
+	if (argc != 2) {
+	    Tcl_AppendResult(interp, "wrong # args: should be \"",
+		    argv[0], " unpost\"", (char *) NULL);
+	    goto error;
+	}
+	Tk_UnmapWindow(menuPtr->tkwin);
+	result = TkPostSubmenu(interp, menuPtr, (TkMenuEntry *) NULL);
+    } else if ((c == 'y') && (strncmp(argv[1], "yposition", length) == 0)) {
+	if (argc != 3) {
+	    Tcl_AppendResult(interp, "wrong # args: should be \"",
+		    argv[0], " yposition index\"", (char *) NULL);
+	    goto error;
+	}
+	result = MenuDoYPosition(interp, menuPtr, argv[2]);
+    } else {
+	Tcl_AppendResult(interp, "bad option \"", argv[1],
+		"\": must be activate, add, cget, clone, configure, delete, ",
+		"entrycget, entryconfigure, index, insert, invoke, ",
+		"post, postcascade, type, unpost, or yposition",
+		(char *) NULL);
+	goto error;
+    }
+    done:
+    Tcl_Release((ClientData) menuPtr);
+    return result;
+
+    error:
+    Tcl_Release((ClientData) menuPtr);
+    return TCL_ERROR;
+}
+
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkInvokeMenu --
+ *
+ *	Given a menu and an index, takes the appropriate action for the
+ *	entry associated with that index.
+ *
+ * Results:
+ *	Standard Tcl result.
+ *
+ * Side effects:
+ *	Commands may get excecuted; variables may get set; sub-menus may
+ *	get posted.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TkInvokeMenu(interp, menuPtr, index)
+    Tcl_Interp *interp;		/* The interp that the menu lives in. */
+    TkMenu *menuPtr;		/* The menu we are invoking. */
+    int index;			/* The zero based index of the item we
+    				 * are invoking */
+{
+    int result = TCL_OK;
+    TkMenuEntry *mePtr;
+    
+    if (index < 0) {
+    	goto done;
+    }
+    mePtr = menuPtr->entries[index];
+    if (mePtr->state == tkDisabledUid) {
+	goto done;
+    }
+    Tcl_Preserve((ClientData) mePtr);
+    if (mePtr->type == TEAROFF_ENTRY) {
+    	Tcl_DString commandDString;
+    	
+    	Tcl_DStringInit(&commandDString);
+    	Tcl_DStringAppendElement(&commandDString, "tkTearOffMenu");
+    	Tcl_DStringAppendElement(&commandDString, Tk_PathName(menuPtr->tkwin));
+    	result = Tcl_Eval(interp, Tcl_DStringValue(&commandDString));
+    	Tcl_DStringFree(&commandDString);
+    } else if (mePtr->type == CHECK_BUTTON_ENTRY) {
+	if (mePtr->entryFlags & ENTRY_SELECTED) {
+	    if (Tcl_SetVar(interp, mePtr->name, mePtr->offValue,
+		    TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) {
+		result = TCL_ERROR;
+	    }
+	} else {
+	    if (Tcl_SetVar(interp, mePtr->name, mePtr->onValue,
+		    TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) {
+		result = TCL_ERROR;
+	    }
+	}
+    } else if (mePtr->type == RADIO_BUTTON_ENTRY) {
+	if (Tcl_SetVar(interp, mePtr->name, mePtr->onValue,
+		TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) {
+	    result = TCL_ERROR;
+	}
+    }
+    if ((result == TCL_OK) && (mePtr->command != NULL)) {
+	result = TkCopyAndGlobalEval(interp, mePtr->command);
+    }
+    Tcl_Release((ClientData) mePtr);
+    done:
+    return result; 
+}
+
+
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * DestroyMenuInstance --
+ *
+ *	This procedure is invoked by TkDestroyMenu
+ *	to clean up the internal structure of a menu at a safe time
+ *	(when no-one is using it anymore). Only takes care of one instance
+ *	of the menu.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Everything associated with the menu is freed up.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+DestroyMenuInstance(menuPtr)
+    TkMenu *menuPtr;	/* Info about menu widget. */
+{
+    int i, numEntries = menuPtr->numEntries;
+    TkMenu *menuInstancePtr;
+    TkMenuEntry *cascadePtr, *nextCascadePtr;
+    char *newArgv[2];
+    TkMenu *parentMasterMenuPtr;
+    TkMenuEntry *parentMasterEntryPtr;
+    TkMenu *parentMenuPtr;
+    
+    /*
+     * If the menu has any cascade menu entries pointing to it, the cascade
+     * entries need to be told that the menu is going away. We need to clear
+     * the menu ptr field in the menu reference at this point in the code
+     * so that everything else can forget about this menu properly. We also
+     * need to reset -menu field of all entries that are not master menus
+     * back to this entry name if this is a master menu pointed to by another
+     * master menu. If there is a clone menu that points to this menu,
+     * then this menu is itself a clone, so when this menu goes away,
+     * the -menu field of the pointing entry must be set back to this
+     * menu's master menu name so that later if another menu is created
+     * the cascade hierarchy can be maintained.
+     */
+
+    TkpDestroyMenu(menuPtr);
+    cascadePtr = menuPtr->menuRefPtr->parentEntryPtr;
+    menuPtr->menuRefPtr->menuPtr = NULL;
+    TkFreeMenuReferences(menuPtr->menuRefPtr);
+
+    for (; cascadePtr != NULL; cascadePtr = nextCascadePtr) {
+    	parentMenuPtr = cascadePtr->menuPtr;
+    	nextCascadePtr = cascadePtr->nextCascadePtr;
+    	
+    	if (menuPtr->masterMenuPtr != menuPtr) {
+	    parentMasterMenuPtr = cascadePtr->menuPtr->masterMenuPtr;
+	    parentMasterEntryPtr =
+		    parentMasterMenuPtr->entries[cascadePtr->index];
+	    newArgv[0] = "-menu";
+	    newArgv[1] = parentMasterEntryPtr->name;
+    	    ConfigureMenuEntry(cascadePtr, 2, newArgv, TK_CONFIG_ARGV_ONLY);
+    	} else {
+    	    ConfigureMenuEntry(cascadePtr, 0, (char **) NULL, 0);
+    	}
+    }
+    
+    if (menuPtr->masterMenuPtr != menuPtr) {
+        for (menuInstancePtr = menuPtr->masterMenuPtr; 
+        	menuInstancePtr != NULL;
+        	menuInstancePtr = menuInstancePtr->nextInstancePtr) {
+            if (menuInstancePtr->nextInstancePtr == menuPtr) {
+                menuInstancePtr->nextInstancePtr = 
+                	menuInstancePtr->nextInstancePtr->nextInstancePtr;
+                break;
+            }
+        }
+   } else if (menuPtr->nextInstancePtr != NULL) {
+       panic("Attempting to delete master menu when there are still clones.");
+   }
+
+    /*
+     * Free up all the stuff that requires special handling, then
+     * let Tk_FreeOptions handle all the standard option-related
+     * stuff.
+     */
+
+    for (i = numEntries - 1; i >= 0; i--) {
+	DestroyMenuEntry((char *) menuPtr->entries[i]);
+    }
+    if (menuPtr->entries != NULL) {
+	ckfree((char *) menuPtr->entries);
+    }
+    TkMenuFreeDrawOptions(menuPtr);
+    Tk_FreeOptions(tkMenuConfigSpecs, (char *) menuPtr, menuPtr->display, 0);
+
+    Tcl_EventuallyFree((ClientData) menuPtr, TCL_DYNAMIC);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkDestroyMenu --
+ *
+ *	This procedure is invoked by Tcl_EventuallyFree or Tcl_Release
+ *	to clean up the internal structure of a menu at a safe time
+ *	(when no-one is using it anymore).  If called on a master instance,
+ *	destroys all of the slave instances. If called on a non-master
+ *	instance, just destroys that instance.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Everything associated with the menu is freed up.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TkDestroyMenu(menuPtr)
+    TkMenu *menuPtr;	/* Info about menu widget. */
+{
+    TkMenu *menuInstancePtr;
+    TkMenuTopLevelList *topLevelListPtr, *nextTopLevelPtr;
+
+    if (menuPtr->menuFlags & MENU_DELETION_PENDING) {
+    	return;
+    }
+    
+    /*
+     * Now destroy all non-tearoff instances of this menu if this is a 
+     * parent menu. Is this loop safe enough? Are there going to be
+     * destroy bindings on child menus which kill the parent? If not,
+     * we have to do a slightly more complex scheme.
+     */
+    
+    if (menuPtr->masterMenuPtr == menuPtr) {
+    	menuPtr->menuFlags |= MENU_DELETION_PENDING;
+	while (menuPtr->nextInstancePtr != NULL) {
+	    menuInstancePtr = menuPtr->nextInstancePtr;
+	    menuPtr->nextInstancePtr = menuInstancePtr->nextInstancePtr;
+    	    if (menuInstancePtr->tkwin != NULL) {
+	     	Tk_DestroyWindow(menuInstancePtr->tkwin);
+	    }
+	}
+    	menuPtr->menuFlags &= ~MENU_DELETION_PENDING;
+    }
+
+    /*
+     * If any toplevel widgets have this menu as their menubar,
+     * the geometry of the window may have to be recalculated.
+     */
+    
+    topLevelListPtr = menuPtr->menuRefPtr->topLevelListPtr;
+    while (topLevelListPtr != NULL) {
+         nextTopLevelPtr = topLevelListPtr->nextPtr;
+         TkpSetWindowMenuBar(topLevelListPtr->tkwin, NULL);
+    	 topLevelListPtr = nextTopLevelPtr;
+    }   
+    DestroyMenuInstance(menuPtr);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * UnhookCascadeEntry --
+ *
+ *	This entry is removed from the list of entries that point to the
+ *	cascade menu. This is done in preparation for changing the menu
+ *	that this entry points to.
+ *
+ * Results:
+ *	None
+ *
+ * Side effects:
+ *	The appropriate lists are modified.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+UnhookCascadeEntry(mePtr)
+    TkMenuEntry *mePtr;			/* The cascade entry we are removing
+					 * from the cascade list. */
+{
+    TkMenuEntry *cascadeEntryPtr;
+    TkMenuEntry *prevCascadePtr;
+    TkMenuReferences *menuRefPtr;
+
+    menuRefPtr = mePtr->childMenuRefPtr;
+    if (menuRefPtr == NULL) {
+        return;
+    }
+    
+    cascadeEntryPtr = menuRefPtr->parentEntryPtr;
+    if (cascadeEntryPtr == NULL) {
+    	return;
+    }
+    
+    /*
+     * Singularly linked list deletion. The two special cases are
+     * 1. one element; 2. The first element is the one we want.
+     */
+ 
+    if (cascadeEntryPtr == mePtr) {
+    	if (cascadeEntryPtr->nextCascadePtr == NULL) {
+
+	    /*
+	     * This is the last menu entry which points to this
+	     * menu, so we need to clear out the list pointer in the
+	     * cascade itself.
+	     */
+	
+	    menuRefPtr->parentEntryPtr = NULL;
+	    TkFreeMenuReferences(menuRefPtr);
+    	} else {
+    	    menuRefPtr->parentEntryPtr = cascadeEntryPtr->nextCascadePtr;
+    	}
+    	mePtr->nextCascadePtr = NULL;
+    } else {
+	for (prevCascadePtr = cascadeEntryPtr,
+		cascadeEntryPtr = cascadeEntryPtr->nextCascadePtr;
+		cascadeEntryPtr != NULL;
+	        prevCascadePtr = cascadeEntryPtr,
+		cascadeEntryPtr = cascadeEntryPtr->nextCascadePtr) {
+    	    if (cascadeEntryPtr == mePtr){
+    	    	prevCascadePtr->nextCascadePtr =
+            	    	cascadeEntryPtr->nextCascadePtr;
+    	    	cascadeEntryPtr->nextCascadePtr = NULL;
+    	    	break;
+    	    }
+        }
+    }
+    mePtr->childMenuRefPtr = NULL;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * DestroyMenuEntry --
+ *
+ *	This procedure is invoked by Tcl_EventuallyFree or Tcl_Release
+ *	to clean up the internal structure of a menu entry at a safe time
+ *	(when no-one is using it anymore).
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Everything associated with the menu entry is freed.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+DestroyMenuEntry(memPtr)
+    char *memPtr;		/* Pointer to entry to be freed. */
+{
+    register TkMenuEntry *mePtr = (TkMenuEntry *) memPtr;
+    TkMenu *menuPtr = mePtr->menuPtr;
+
+    if (menuPtr->postedCascade == mePtr) {
+	
+    	/*
+	 * Ignore errors while unposting the menu, since it's possible
+	 * that the menu has already been deleted and the unpost will
+	 * generate an error.
+	 */
+
+	TkPostSubmenu(menuPtr->interp, menuPtr, (TkMenuEntry *) NULL);
+    }
+
+    /*
+     * Free up all the stuff that requires special handling, then
+     * let Tk_FreeOptions handle all the standard option-related
+     * stuff.
+     */
+
+    if (mePtr->type == CASCADE_ENTRY) {
+        UnhookCascadeEntry(mePtr);
+    }
+    if (mePtr->image != NULL) {
+	Tk_FreeImage(mePtr->image);
+    }
+    if (mePtr->selectImage != NULL) {
+	Tk_FreeImage(mePtr->selectImage);
+    }
+    if (mePtr->name != NULL) {
+	Tcl_UntraceVar(menuPtr->interp, mePtr->name,
+		TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
+		MenuVarProc, (ClientData) mePtr);
+    }
+    TkpDestroyMenuEntry(mePtr);
+    TkMenuEntryFreeDrawOptions(mePtr);
+    Tk_FreeOptions(tkMenuEntryConfigSpecs, (char *) mePtr, menuPtr->display, 
+	    (COMMAND_MASK << mePtr->type));
+    ckfree((char *) mePtr);
+}
+
+/*
+ *---------------------------------------------------------------------------
+ *
+ * MenuWorldChanged --
+ *
+ *      This procedure is called when the world has changed in some
+ *      way (such as the fonts in the system changing) and the widget needs
+ *	to recompute all its graphics contexts and determine its new geometry.
+ *
+ * Results:
+ *      None.
+ *
+ * Side effects:
+ *      Menu will be relayed out and redisplayed.
+ *
+ *---------------------------------------------------------------------------
+ */
+ 
+static void
+MenuWorldChanged(instanceData)
+    ClientData instanceData;	/* Information about widget. */
+{
+    TkMenu *menuPtr = (TkMenu *) instanceData;
+    int i;
+    
+    TkMenuConfigureDrawOptions(menuPtr);
+    for (i = 0; i < menuPtr->numEntries; i++) {
+    	TkMenuConfigureEntryDrawOptions(menuPtr->entries[i],
+		menuPtr->entries[i]->index);
+	TkpConfigureMenuEntry(menuPtr->entries[i]);	
+    }
+}
+
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * ConfigureMenu --
+ *
+ *	This procedure is called to process an argv/argc list, plus
+ *	the Tk option database, in order to configure (or
+ *	reconfigure) a menu widget.
+ *
+ * Results:
+ *	The return value is a standard Tcl result.  If TCL_ERROR is
+ *	returned, then interp->result contains an error message.
+ *
+ * Side effects:
+ *	Configuration information, such as colors, font, etc. get set
+ *	for menuPtr;  old resources get freed, if there were any.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+ConfigureMenu(interp, menuPtr, argc, argv, flags)
+    Tcl_Interp *interp;		/* Used for error reporting. */
+    register TkMenu *menuPtr;	/* Information about widget;  may or may
+				 * not already have values for some fields. */
+    int argc;			/* Number of valid entries in argv. */
+    char **argv;		/* Arguments. */
+    int flags;			/* Flags to pass to Tk_ConfigureWidget. */
+{
+    int i;
+    TkMenu* menuListPtr;
+    
+    for (menuListPtr = menuPtr->masterMenuPtr; menuListPtr != NULL;
+	    menuListPtr = menuListPtr->nextInstancePtr) {
+    
+	if (Tk_ConfigureWidget(interp, menuListPtr->tkwin,
+		tkMenuConfigSpecs, argc, argv, (char *) menuListPtr,
+		flags) != TCL_OK) {
+	    return TCL_ERROR;
+	}
+
+	/*
+	 * When a menu is created, the type is in all of the arguments
+	 * to the menu command. Let Tk_ConfigureWidget take care of
+	 * parsing them, and then set the type after we can look at
+	 * the type string. Once set, a menu's type cannot be changed
+	 */
+	
+	if (menuListPtr->menuType == UNKNOWN_TYPE) {
+	    if (strcmp(menuListPtr->menuTypeName, "menubar") == 0) {
+	    	menuListPtr->menuType = MENUBAR;
+	    } else if (strcmp(menuListPtr->menuTypeName, "tearoff") == 0) {
+	    	menuListPtr->menuType = TEAROFF_MENU;
+	    } else {
+	    	menuListPtr->menuType = MASTER_MENU;
+	    }
+	}
+	
+	/*
+	 * Depending on the -tearOff option, make sure that there is or
+	 * isn't an initial tear-off entry at the beginning of the menu.
+	 */
+	
+	if (menuListPtr->tearOff) {
+	    if ((menuListPtr->numEntries == 0)
+		    || (menuListPtr->entries[0]->type != TEAROFF_ENTRY)) {
+		if (MenuNewEntry(menuListPtr, 0, TEAROFF_ENTRY) == NULL) {
+		    return TCL_ERROR;
+		}
+	    }
+	} else if ((menuListPtr->numEntries > 0)
+		&& (menuListPtr->entries[0]->type == TEAROFF_ENTRY)) {
+	    int i;
+
+	    Tcl_EventuallyFree((ClientData) menuListPtr->entries[0],
+	    	    DestroyMenuEntry);
+	    for (i = 0; i < menuListPtr->numEntries - 1; i++) {
+		menuListPtr->entries[i] = menuListPtr->entries[i + 1];
+		menuListPtr->entries[i]->index = i;
+	    }
+	    menuListPtr->numEntries--;
+	    if (menuListPtr->numEntries == 0) {
+		ckfree((char *) menuListPtr->entries);
+		menuListPtr->entries = NULL;
+	    }
+	}
+
+	TkMenuConfigureDrawOptions(menuListPtr);
+
+	/*
+	 * Configure the new window to be either a pop-up menu
+	 * or a tear-off menu.
+	 * We don't do this for menubars since they are not toplevel
+	 * windows. Also, since this gets called before CloneMenu has
+	 * a chance to set the menuType field, we have to look at the
+	 * menuTypeName field to tell that this is a menu bar.
+	 */
+	
+	if (strcmp(menuListPtr->menuTypeName, "normal") == 0) {
+	    TkpMakeMenuWindow(menuListPtr->tkwin, 1);
+	} else if (strcmp(menuListPtr->menuTypeName, "tearoff") == 0) {
+	    TkpMakeMenuWindow(menuListPtr->tkwin, 0);
+	}
+	
+	/*
+	 * After reconfiguring a menu, we need to reconfigure all of the
+	 * entries in the menu, since some of the things in the children
+	 * (such as graphics contexts) may have to change to reflect changes
+	 * in the parent.
+	 */
+	
+	for (i = 0; i < menuListPtr->numEntries; i++) {
+	    TkMenuEntry *mePtr;
+	
+	    mePtr = menuListPtr->entries[i];
+	    ConfigureMenuEntry(mePtr, 0,
+	    	    (char **) NULL, TK_CONFIG_ARGV_ONLY 
+	    	    | COMMAND_MASK << mePtr->type);
+	}
+	
+	TkEventuallyRecomputeMenu(menuListPtr);
+    }
+
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * ConfigureMenuEntry --
+ *
+ *	This procedure is called to process an argv/argc list in order
+ *	to configure (or reconfigure) one entry in a menu.
+ *
+ * Results:
+ *	The return value is a standard Tcl result.  If TCL_ERROR is
+ *	returned, then interp->result contains an error message.
+ *
+ * Side effects:
+ *	Configuration information such as label and accelerator get
+ *	set for mePtr;  old resources get freed, if there were any.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+ConfigureMenuEntry(mePtr, argc, argv, flags)
+    register TkMenuEntry *mePtr;		/* Information about menu entry;  may
+					 * or may not already have values for
+					 * some fields. */
+    int argc;				/* Number of valid entries in argv. */
+    char **argv;			/* Arguments. */
+    int flags;				/* Additional flags to pass to
+					 * Tk_ConfigureWidget. */
+{
+    TkMenu *menuPtr = mePtr->menuPtr;
+    int index = mePtr->index;
+    Tk_Image image;
+
+    /*
+     * If this entry is a check button or radio button, then remove
+     * its old trace procedure.
+     */
+
+    if ((mePtr->name != NULL)
+    	    && ((mePtr->type == CHECK_BUTTON_ENTRY)
+	    || (mePtr->type == RADIO_BUTTON_ENTRY))) {
+	Tcl_UntraceVar(menuPtr->interp, mePtr->name,
+		TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
+		MenuVarProc, (ClientData) mePtr);
+    }
+    
+    if (menuPtr->tkwin != NULL) {
+	if (Tk_ConfigureWidget(menuPtr->interp, menuPtr->tkwin, 
+		tkMenuEntryConfigSpecs, argc, argv, (char *) mePtr,
+		flags | (COMMAND_MASK << mePtr->type)) != TCL_OK) {
+	    return TCL_ERROR;
+	}
+    }
+
+    /*
+     * The code below handles special configuration stuff not taken
+     * care of by Tk_ConfigureWidget, such as special processing for
+     * defaults, sizing strings, graphics contexts, etc.
+     */
+
+    if (mePtr->label == NULL) {
+	mePtr->labelLength = 0;
+    } else {
+	mePtr->labelLength = strlen(mePtr->label);
+    }
+    if (mePtr->accel == NULL) {
+	mePtr->accelLength = 0;
+    } else {
+	mePtr->accelLength = strlen(mePtr->accel);
+    }
+
+    /*
+     * If this is a cascade entry, the platform-specific data of the child
+     * menu has to be updated. Also, the links that point to parents and
+     * cascades have to be updated.
+     */
+
+    if ((mePtr->type == CASCADE_ENTRY) && (mePtr->name != NULL)) {
+ 	TkMenuEntry *cascadeEntryPtr;
+ 	TkMenu *cascadeMenuPtr;
+	int alreadyThere;
+	TkMenuReferences *menuRefPtr;
+	char *oldHashKey = NULL;	/* Initialization only needed to
+					 * prevent compiler warning. */
+
+	/*
+	 * This is a cascade entry. If the menu that the cascade entry
+	 * is pointing to has changed, we need to remove this entry
+	 * from the list of entries pointing to the old menu, and add a
+	 * cascade reference to the list of entries pointing to the
+	 * new menu.
+	 *
+	 * BUG: We are not recloning for special case #3 yet.
+	 */
+	
+	if (mePtr->childMenuRefPtr != NULL) {
+	    oldHashKey = Tcl_GetHashKey(TkGetMenuHashTable(menuPtr->interp),
+		    mePtr->childMenuRefPtr->hashEntryPtr);
+	    if (strcmp(oldHashKey, mePtr->name) != 0) {
+		UnhookCascadeEntry(mePtr);
+	    }
+	}
+
+	if ((mePtr->childMenuRefPtr == NULL) 
+		|| (strcmp(oldHashKey, mePtr->name) != 0)) {
+	    menuRefPtr = TkCreateMenuReferences(menuPtr->interp,
+		    mePtr->name);
+	    cascadeMenuPtr = menuRefPtr->menuPtr;
+	    mePtr->childMenuRefPtr = menuRefPtr;
+
+	    if (menuRefPtr->parentEntryPtr == NULL) {
+		menuRefPtr->parentEntryPtr = mePtr;
+	    } else {
+		alreadyThere = 0;
+		for (cascadeEntryPtr = menuRefPtr->parentEntryPtr;
+			cascadeEntryPtr != NULL;
+			cascadeEntryPtr =
+			cascadeEntryPtr->nextCascadePtr) {
+		    if (cascadeEntryPtr == mePtr) {
+			alreadyThere = 1;
+			break;
+		    }
+		}
+    
+		/*
+		 * Put the item at the front of the list.
+		 */
+	    
+		if (!alreadyThere) {
+		    mePtr->nextCascadePtr = menuRefPtr->parentEntryPtr;
+		    menuRefPtr->parentEntryPtr = mePtr;
+		}
+	    }
+	}
+    }
+    
+    if (TkMenuConfigureEntryDrawOptions(mePtr, index) != TCL_OK) {
+    	return TCL_ERROR;
+    }
+
+    if (TkpConfigureMenuEntry(mePtr) != TCL_OK) {
+    	return TCL_ERROR;
+    }
+    
+    if ((mePtr->type == CHECK_BUTTON_ENTRY)
+	    || (mePtr->type == RADIO_BUTTON_ENTRY)) {
+	char *value;
+
+	if (mePtr->name == NULL) {
+	    mePtr->name =
+		    (char *) ckalloc((unsigned) (mePtr->labelLength + 1));
+	    strcpy(mePtr->name, (mePtr->label == NULL) ? "" : mePtr->label);
+	}
+	if (mePtr->onValue == NULL) {
+	    mePtr->onValue = (char *) ckalloc((unsigned)
+		    (mePtr->labelLength + 1));
+	    strcpy(mePtr->onValue, (mePtr->label == NULL) ? "" : mePtr->label);
+	}
+
+	/*
+	 * Select the entry if the associated variable has the
+	 * appropriate value, initialize the variable if it doesn't
+	 * exist, then set a trace on the variable to monitor future
+	 * changes to its value.
+	 */
+
+	value = Tcl_GetVar(menuPtr->interp, mePtr->name, TCL_GLOBAL_ONLY);
+	mePtr->entryFlags &= ~ENTRY_SELECTED;
+	if (value != NULL) {
+	    if (strcmp(value, mePtr->onValue) == 0) {
+		mePtr->entryFlags |= ENTRY_SELECTED;
+	    }
+	} else {
+	    Tcl_SetVar(menuPtr->interp, mePtr->name,
+		    (mePtr->type == CHECK_BUTTON_ENTRY) ? mePtr->offValue : "",
+		    TCL_GLOBAL_ONLY);
+	}
+	Tcl_TraceVar(menuPtr->interp, mePtr->name,
+		TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
+		MenuVarProc, (ClientData) mePtr);
+    }
+
+    /*
+     * Get the images for the entry, if there are any.  Allocate the
+     * new images before freeing the old ones, so that the reference
+     * counts don't go to zero and cause image data to be discarded.
+     */
+
+    if (mePtr->imageString != NULL) {
+	image = Tk_GetImage(menuPtr->interp, menuPtr->tkwin, mePtr->imageString,
+		TkMenuImageProc, (ClientData) mePtr);
+	if (image == NULL) {
+	    return TCL_ERROR;
+	}
+    } else {
+	image = NULL;
+    }
+    if (mePtr->image != NULL) {
+	Tk_FreeImage(mePtr->image);
+    }
+    mePtr->image = image;
+    if (mePtr->selectImageString != NULL) {
+	image = Tk_GetImage(menuPtr->interp, menuPtr->tkwin, mePtr->selectImageString,
+		TkMenuSelectImageProc, (ClientData) mePtr);
+	if (image == NULL) {
+	    return TCL_ERROR;
+	}
+    } else {
+	image = NULL;
+    }
+    if (mePtr->selectImage != NULL) {
+	Tk_FreeImage(mePtr->selectImage);
+    }
+    mePtr->selectImage = image;
+
+    TkEventuallyRecomputeMenu(menuPtr);
+    
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * ConfigureMenuCloneEntries --
+ *
+ *	Calls ConfigureMenuEntry for each menu in the clone chain.
+ *
+ * Results:
+ *	The return value is a standard Tcl result.  If TCL_ERROR is
+ *	returned, then interp->result contains an error message.
+ *
+ * Side effects:
+ *	Configuration information such as label and accelerator get
+ *	set for mePtr;  old resources get freed, if there were any.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+ConfigureMenuCloneEntries(interp, menuPtr, index, argc, argv, flags)
+    Tcl_Interp *interp;			/* Used for error reporting. */
+    TkMenu *menuPtr;			/* Information about whole menu. */
+    int index;				/* Index of mePtr within menuPtr's
+					 * entries. */
+    int argc;				/* Number of valid entries in argv. */
+    char **argv;			/* Arguments. */
+    int flags;				/* Additional flags to pass to
+					 * Tk_ConfigureWidget. */
+{
+    TkMenuEntry *mePtr;
+    TkMenu *menuListPtr;
+    char *oldCascadeName = NULL, *newMenuName = NULL;
+    int cascadeEntryChanged;
+    TkMenuReferences *oldCascadeMenuRefPtr, *cascadeMenuRefPtr = NULL; 
+    
+    /*
+     * Cascades are kind of tricky here. This is special case #3 in the comment
+     * at the top of this file. Basically, if a menu is the master menu of a
+     * clone chain, and has an entry with a cascade menu, the clones of
+     * the menu will point to clones of the cascade menu. We have
+     * to destroy the clones of the cascades, clone the new cascade
+     * menu, and configure the entry to point to the new clone.
+     */
+
+    mePtr = menuPtr->masterMenuPtr->entries[index];
+    if (mePtr->type == CASCADE_ENTRY) {
+	oldCascadeName = mePtr->name;
+    }
+
+    if (ConfigureMenuEntry(mePtr, argc, argv, flags) != TCL_OK) {
+	return TCL_ERROR;
+    }
+
+    cascadeEntryChanged = (mePtr->type == CASCADE_ENTRY)
+	    && (oldCascadeName != mePtr->name);
+
+    if (cascadeEntryChanged) {
+	newMenuName = mePtr->name;
+	if (newMenuName != NULL) {
+	    cascadeMenuRefPtr = TkFindMenuReferences(menuPtr->interp,
+		    mePtr->name);
+	}
+    }
+
+    for (menuListPtr = menuPtr->masterMenuPtr->nextInstancePtr; 
+    	    menuListPtr != NULL;
+	    menuListPtr = menuListPtr->nextInstancePtr) {
+  	
+    	mePtr = menuListPtr->entries[index];
+
+	if (cascadeEntryChanged && (mePtr->name != NULL)) {
+	    oldCascadeMenuRefPtr = TkFindMenuReferences(menuPtr->interp, 
+		    mePtr->name);
+
+	    if ((oldCascadeMenuRefPtr != NULL)
+		    && (oldCascadeMenuRefPtr->menuPtr != NULL)) {
+		RecursivelyDeleteMenu(oldCascadeMenuRefPtr->menuPtr);
+	    }
+	}
+
+    	if (ConfigureMenuEntry(mePtr, argc, argv, flags) != TCL_OK) {
+    	    return TCL_ERROR;
+    	}
+	
+	if (cascadeEntryChanged && (newMenuName != NULL)) {
+	    if (cascadeMenuRefPtr->menuPtr != NULL) {
+		char *newArgV[2];
+		char *newCloneName;
+
+		newCloneName = TkNewMenuName(menuPtr->interp,
+			Tk_PathName(menuListPtr->tkwin), 
+			cascadeMenuRefPtr->menuPtr);
+		CloneMenu(cascadeMenuRefPtr->menuPtr, newCloneName,
+			"normal");
+
+		newArgV[0] = "-menu";
+		newArgV[1] = newCloneName;
+		ConfigureMenuEntry(mePtr, 2, newArgV, flags);
+		ckfree(newCloneName);
+	    }
+	}
+    }
+    return TCL_OK;
+}
+
+/*
+ *--------------------------------------------------------------
+ *
+ * TkGetMenuIndex --
+ *
+ *	Parse a textual index into a menu and return the numerical
+ *	index of the indicated entry.
+ *
+ * Results:
+ *	A standard Tcl result.  If all went well, then *indexPtr is
+ *	filled in with the entry index corresponding to string
+ *	(ranges from -1 to the number of entries in the menu minus
+ *	one).  Otherwise an error message is left in interp->result.
+ *
+ * Side effects:
+ *	None.
+ *
+ *--------------------------------------------------------------
+ */
+
+int
+TkGetMenuIndex(interp, menuPtr, string, lastOK, indexPtr)
+    Tcl_Interp *interp;		/* For error messages. */
+    TkMenu *menuPtr;		/* Menu for which the index is being
+				 * specified. */
+    char *string;		/* Specification of an entry in menu.  See
+				 * manual entry for valid .*/
+    int lastOK;			/* Non-zero means its OK to return index
+				 * just *after* last entry. */
+    int *indexPtr;		/* Where to store converted relief. */
+{
+    int i;
+
+    if ((string[0] == 'a') && (strcmp(string, "active") == 0)) {
+	*indexPtr = menuPtr->active;
+	return TCL_OK;
+    }
+
+    if (((string[0] == 'l') && (strcmp(string, "last") == 0))
+	    || ((string[0] == 'e') && (strcmp(string, "end") == 0))) {
+	*indexPtr = menuPtr->numEntries - ((lastOK) ? 0 : 1);
+	return TCL_OK;
+    }
+
+    if ((string[0] == 'n') && (strcmp(string, "none") == 0)) {
+	*indexPtr = -1;
+	return TCL_OK;
+    }
+
+    if (string[0] == '@') {
+	if (GetIndexFromCoords(interp, menuPtr, string, indexPtr)
+		== TCL_OK) {
+	    return TCL_OK;
+	}
+    }
+
+    if (isdigit(UCHAR(string[0]))) {
+	if (Tcl_GetInt(interp, string,  &i) == TCL_OK) {
+	    if (i >= menuPtr->numEntries) {
+		if (lastOK) {
+		    i = menuPtr->numEntries;
+		} else {
+		    i = menuPtr->numEntries-1;
+		}
+	    } else if (i < 0) {
+		i = -1;
+	    }
+	    *indexPtr = i;
+	    return TCL_OK;
+	}
+	Tcl_SetResult(interp, (char *) NULL, TCL_STATIC);
+    }
+
+    for (i = 0; i < menuPtr->numEntries; i++) {
+	char *label;
+
+	label = menuPtr->entries[i]->label;
+	if ((label != NULL)
+		&& (Tcl_StringMatch(menuPtr->entries[i]->label, string))) {
+	    *indexPtr = i;
+	    return TCL_OK;
+	}
+    }
+
+    Tcl_AppendResult(interp, "bad menu entry index \"",
+	    string, "\"", (char *) NULL);
+    return TCL_ERROR;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * MenuCmdDeletedProc --
+ *
+ *	This procedure is invoked when a widget command is deleted.  If
+ *	the widget isn't already in the process of being destroyed,
+ *	this command destroys it.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	The widget is destroyed.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+MenuCmdDeletedProc(clientData)
+    ClientData clientData;	/* Pointer to widget record for widget. */
+{
+    TkMenu *menuPtr = (TkMenu *) clientData;
+    Tk_Window tkwin = menuPtr->tkwin;
+
+    /*
+     * This procedure could be invoked either because the window was
+     * destroyed and the command was then deleted (in which case tkwin
+     * is NULL) or because the command was deleted, and then this procedure
+     * destroys the widget.
+     */
+
+    if (tkwin != NULL) {
+	menuPtr->tkwin = NULL;
+	Tk_DestroyWindow(tkwin);
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * MenuNewEntry --
+ *
+ *	This procedure allocates and initializes a new menu entry.
+ *
+ * Results:
+ *	The return value is a pointer to a new menu entry structure,
+ *	which has been malloc-ed, initialized, and entered into the
+ *	entry array for the  menu.
+ *
+ * Side effects:
+ *	Storage gets allocated.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static TkMenuEntry *
+MenuNewEntry(menuPtr, index, type)
+    TkMenu *menuPtr;		/* Menu that will hold the new entry. */
+    int index;			/* Where in the menu the new entry is to
+				 * go. */
+    int type;			/* The type of the new entry. */
+{
+    TkMenuEntry *mePtr;
+    TkMenuEntry **newEntries;
+    int i;
+
+    /*
+     * Create a new array of entries with an empty slot for the
+     * new entry.
+     */
+
+    newEntries = (TkMenuEntry **) ckalloc((unsigned)
+	    ((menuPtr->numEntries+1)*sizeof(TkMenuEntry *)));
+    for (i = 0; i < index; i++) {
+	newEntries[i] = menuPtr->entries[i];
+    }
+    for (  ; i < menuPtr->numEntries; i++) {
+	newEntries[i+1] = menuPtr->entries[i];
+	newEntries[i+1]->index = i + 1;
+    }
+    if (menuPtr->numEntries != 0) {
+	ckfree((char *) menuPtr->entries);
+    }
+    menuPtr->entries = newEntries;
+    menuPtr->numEntries++;
+    mePtr = (TkMenuEntry *) ckalloc(sizeof(TkMenuEntry));
+    menuPtr->entries[index] = mePtr;
+    mePtr->type = type;
+    mePtr->menuPtr = menuPtr;
+    mePtr->label = NULL;
+    mePtr->labelLength = 0;
+    mePtr->underline = -1;
+    mePtr->bitmap = None;
+    mePtr->imageString = NULL;
+    mePtr->image = NULL;
+    mePtr->selectImageString  = NULL;
+    mePtr->selectImage = NULL;
+    mePtr->accel = NULL;
+    mePtr->accelLength = 0;
+    mePtr->state = tkNormalUid;
+    mePtr->border = NULL;
+    mePtr->fg = NULL;
+    mePtr->activeBorder = NULL;
+    mePtr->activeFg = NULL;
+    mePtr->tkfont = NULL;
+    mePtr->indicatorOn = 1;
+    mePtr->indicatorFg = NULL;
+    mePtr->columnBreak = 0;
+    mePtr->hideMargin = 0;
+    mePtr->command = NULL;
+    mePtr->name = NULL;
+    mePtr->childMenuRefPtr = NULL;
+    mePtr->onValue = NULL;
+    mePtr->offValue = NULL;
+    mePtr->entryFlags = 0;
+    mePtr->index = index;
+    mePtr->nextCascadePtr = NULL;
+    TkMenuInitializeEntryDrawingFields(mePtr);
+    if (TkpMenuNewEntry(mePtr) != TCL_OK) {
+    	ckfree((char *) mePtr);
+    	return NULL;
+    }
+    
+    return mePtr;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * MenuAddOrInsert --
+ *
+ *	This procedure does all of the work of the "add" and "insert"
+ *	widget commands, allowing the code for these to be shared.
+ *
+ * Results:
+ *	A standard Tcl return value.
+ *
+ * Side effects:
+ *	A new menu entry is created in menuPtr.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+MenuAddOrInsert(interp, menuPtr, indexString, argc, argv)
+    Tcl_Interp *interp;			/* Used for error reporting. */
+    TkMenu *menuPtr;			/* Widget in which to create new
+					 * entry. */
+    char *indexString;			/* String describing index at which
+					 * to insert.  NULL means insert at
+					 * end. */
+    int argc;				/* Number of elements in argv. */
+    char **argv;			/* Arguments to command:  first arg
+					 * is type of entry, others are
+					 * config options. */
+{
+    int c, type, index;
+    size_t length;
+    TkMenuEntry *mePtr;
+    TkMenu *menuListPtr;
+
+    if (indexString != NULL) {
+	if (TkGetMenuIndex(interp, menuPtr, indexString, 1, &index)
+		!= TCL_OK) {
+	    return TCL_ERROR;
+	}
+    } else {
+	index = menuPtr->numEntries;
+    }
+    if (index < 0) {
+	Tcl_AppendResult(interp, "bad index \"", indexString, "\"",
+		 (char *) NULL);
+	return TCL_ERROR;
+    }
+    if (menuPtr->tearOff && (index == 0)) {
+	index = 1;
+    }
+
+    /*
+     * Figure out the type of the new entry.
+     */
+
+    c = argv[0][0];
+    length = strlen(argv[0]);
+    if ((c == 'c') && (strncmp(argv[0], "cascade", length) == 0)
+	    && (length >= 2)) {
+	type = CASCADE_ENTRY;
+    } else if ((c == 'c') && (strncmp(argv[0], "checkbutton", length) == 0)
+	    && (length >= 2)) {
+	type = CHECK_BUTTON_ENTRY;
+    } else if ((c == 'c') && (strncmp(argv[0], "command", length) == 0)
+	    && (length >= 2)) {
+	type = COMMAND_ENTRY;
+    } else if ((c == 'r')
+	    && (strncmp(argv[0], "radiobutton", length) == 0)) {
+	type = RADIO_BUTTON_ENTRY;
+    } else if ((c == 's')
+	    && (strncmp(argv[0], "separator", length) == 0)) {
+	type = SEPARATOR_ENTRY;
+    } else {
+	Tcl_AppendResult(interp, "bad menu entry type \"",
+		argv[0], "\": must be cascade, checkbutton, ",
+		"command, radiobutton, or separator", (char *) NULL);
+	return TCL_ERROR;
+    }
+    
+    /*
+     * Now we have to add an entry for every instance related to this menu.
+     */
+
+    for (menuListPtr = menuPtr->masterMenuPtr; menuListPtr != NULL; 
+    	    menuListPtr = menuListPtr->nextInstancePtr) {
+    	
+    	mePtr = MenuNewEntry(menuListPtr, index, type);
+    	if (mePtr == NULL) {
+    	    return TCL_ERROR;
+    	}
+    	if (ConfigureMenuEntry(mePtr, argc-1, argv+1, 0) != TCL_OK) {
+	    TkMenu *errorMenuPtr;
+	    int i; 
+
+	    for (errorMenuPtr = menuPtr->masterMenuPtr;
+		    errorMenuPtr != NULL;
+		    errorMenuPtr = errorMenuPtr->nextInstancePtr) {
+    		Tcl_EventuallyFree((ClientData) errorMenuPtr->entries[index],
+    	    		DestroyMenuEntry);
+		for (i = index; i < errorMenuPtr->numEntries - 1; i++) {
+		    errorMenuPtr->entries[i] = errorMenuPtr->entries[i + 1];
+		    errorMenuPtr->entries[i]->index = i;
+		}
+		errorMenuPtr->numEntries--;
+		if (errorMenuPtr->numEntries == 0) {
+		    ckfree((char *) errorMenuPtr->entries);
+		    errorMenuPtr->entries = NULL;
+		}
+		if (errorMenuPtr == menuListPtr) {
+		    break;
+		}
+	    }
+    	    return TCL_ERROR;
+    	}
+    	
+    	/*
+    	 * If a menu has cascades, then every instance of the menu has
+    	 * to have its own parallel cascade structure. So adding an
+	 * entry to a menu with clones means that the menu that the
+	 * entry points to has to be cloned for every clone the
+	 * master menu has. This is special case #2 in the comment
+	 * at the top of this file.
+    	 */
+ 
+    	if ((menuPtr != menuListPtr) && (type == CASCADE_ENTRY)) {    	    
+    	    if ((mePtr->name != NULL)  && (mePtr->childMenuRefPtr != NULL)
+    	    	    && (mePtr->childMenuRefPtr->menuPtr != NULL)) {
+    	        TkMenu *cascadeMenuPtr =
+			mePtr->childMenuRefPtr->menuPtr->masterMenuPtr;
+    	        char *newCascadeName;
+  		char *newArgv[2];
+		TkMenuReferences *menuRefPtr;
+    	            
+		newCascadeName = TkNewMenuName(menuListPtr->interp,
+			Tk_PathName(menuListPtr->tkwin),
+			cascadeMenuPtr);
+		CloneMenu(cascadeMenuPtr, newCascadeName, "normal");
+		
+		menuRefPtr = TkFindMenuReferences(menuListPtr->interp,
+			newCascadeName);
+		if (menuRefPtr == NULL) {
+		    panic("CloneMenu failed inside of MenuAddOrInsert.");
+		}
+		newArgv[0] = "-menu";
+		newArgv[1] = newCascadeName;
+    	        ConfigureMenuEntry(mePtr, 2, newArgv, 0);
+    	        ckfree(newCascadeName);
+    	    }
+    	}
+    }
+    return TCL_OK;
+}
+
+/*
+ *--------------------------------------------------------------
+ *
+ * MenuVarProc --
+ *
+ *	This procedure is invoked when someone changes the
+ *	state variable associated with a radiobutton or checkbutton
+ *	menu entry.  The entry's selected state is set to match
+ *	the value of the variable.
+ *
+ * Results:
+ *	NULL is always returned.
+ *
+ * Side effects:
+ *	The menu entry may become selected or deselected.
+ *
+ *--------------------------------------------------------------
+ */
+
+static char *
+MenuVarProc(clientData, interp, name1, name2, flags)
+    ClientData clientData;	/* Information about menu entry. */
+    Tcl_Interp *interp;		/* Interpreter containing variable. */
+    char *name1;		/* First part of variable's name. */
+    char *name2;		/* Second part of variable's name. */
+    int flags;			/* Describes what just happened. */
+{
+    TkMenuEntry *mePtr = (TkMenuEntry *) clientData;
+    TkMenu *menuPtr;
+    char *value;
+
+    menuPtr = mePtr->menuPtr;
+
+    /*
+     * If the variable is being unset, then re-establish the
+     * trace unless the whole interpreter is going away.
+     */
+
+    if (flags & TCL_TRACE_UNSETS) {
+	mePtr->entryFlags &= ~ENTRY_SELECTED;
+	if ((flags & TCL_TRACE_DESTROYED) && !(flags & TCL_INTERP_DESTROYED)) {
+	    Tcl_TraceVar(interp, mePtr->name,
+		    TCL_GLOBAL_ONLY|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
+		    MenuVarProc, clientData);
+	}
+	TkpConfigureMenuEntry(mePtr);
+	TkEventuallyRedrawMenu(menuPtr, (TkMenuEntry *) NULL);
+	return (char *) NULL;
+    }
+
+    /*
+     * Use the value of the variable to update the selected status of
+     * the menu entry.
+     */
+
+    value = Tcl_GetVar(interp, mePtr->name, TCL_GLOBAL_ONLY);
+    if (value == NULL) {
+	value = "";
+    }
+    if (strcmp(value, mePtr->onValue) == 0) {
+	if (mePtr->entryFlags & ENTRY_SELECTED) {
+	    return (char *) NULL;
+	}
+	mePtr->entryFlags |= ENTRY_SELECTED;
+    } else if (mePtr->entryFlags & ENTRY_SELECTED) {
+	mePtr->entryFlags &= ~ENTRY_SELECTED;
+    } else {
+	return (char *) NULL;
+    }
+    TkpConfigureMenuEntry(mePtr);
+    TkEventuallyRedrawMenu(menuPtr, mePtr);
+    return (char *) NULL;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkActivateMenuEntry --
+ *
+ *	This procedure is invoked to make a particular menu entry
+ *	the active one, deactivating any other entry that might
+ *	currently be active.
+ *
+ * Results:
+ *	The return value is a standard Tcl result (errors can occur
+ *	while posting and unposting submenus).
+ *
+ * Side effects:
+ *	Menu entries get redisplayed, and the active entry changes.
+ *	Submenus may get posted and unposted.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TkActivateMenuEntry(menuPtr, index)
+    register TkMenu *menuPtr;		/* Menu in which to activate. */
+    int index;				/* Index of entry to activate, or
+					 * -1 to deactivate all entries. */
+{
+    register TkMenuEntry *mePtr;
+    int result = TCL_OK;
+
+    if (menuPtr->active >= 0) {
+	mePtr = menuPtr->entries[menuPtr->active];
+
+	/*
+	 * Don't change the state unless it's currently active (state
+	 * might already have been changed to disabled).
+	 */
+
+	if (mePtr->state == tkActiveUid) {
+	    mePtr->state = tkNormalUid;
+	}
+	TkEventuallyRedrawMenu(menuPtr, menuPtr->entries[menuPtr->active]);
+    }
+    menuPtr->active = index;
+    if (index >= 0) {
+	mePtr = menuPtr->entries[index];
+	mePtr->state = tkActiveUid;
+	TkEventuallyRedrawMenu(menuPtr, mePtr);
+    }
+    return result;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkPostCommand --
+ *
+ *	Execute the postcommand for the given menu.
+ *
+ * Results:
+ *	The return value is a standard Tcl result (errors can occur
+ *	while the postcommands are being processed).
+ *
+ * Side effects:
+ *	Since commands can get executed while this routine is being executed,
+ *	the entire world can change.
+ *
+ *----------------------------------------------------------------------
+ */
+ 
+int
+TkPostCommand(menuPtr)
+    TkMenu *menuPtr;
+{
+    int result;
+
+    /*
+     * If there is a command for the menu, execute it.  This
+     * may change the size of the menu, so be sure to recompute
+     * the menu's geometry if needed.
+     */
+
+    if (menuPtr->postCommand != NULL) {
+    	result = TkCopyAndGlobalEval(menuPtr->interp,
+	        menuPtr->postCommand);
+	if (result != TCL_OK) {
+	    return result;
+	}
+	TkRecomputeMenu(menuPtr);
+    }
+    return TCL_OK;
+}
+
+/*
+ *--------------------------------------------------------------
+ *
+ * CloneMenu --
+ *
+ *	Creates a child copy of the menu. It will be inserted into
+ *	the menu's instance chain. All attributes and entry
+ *	attributes will be duplicated.
+ *
+ * Results:
+ *	A standard Tcl result.
+ *
+ * Side effects:
+ *	Allocates storage. After the menu is created, any 
+ *	configuration done with this menu or any related one
+ *	will be reflected in all of them.
+ *
+ *--------------------------------------------------------------
+ */
+
+static int
+CloneMenu(menuPtr, newMenuName, newMenuTypeString)
+    TkMenu *menuPtr;		/* The menu we are going to clone */
+    char *newMenuName;		/* The name to give the new menu */
+    char *newMenuTypeString;	/* What kind of menu is this, a normal menu
+    				 * a menubar, or a tearoff? */
+{
+    int returnResult;
+    int menuType;
+    size_t length;
+    TkMenuReferences *menuRefPtr;
+    Tcl_Obj *commandObjPtr;
+    
+    if (newMenuTypeString == NULL) {
+    	menuType = MASTER_MENU;
+    } else {
+    	length = strlen(newMenuTypeString);
+    	if (strncmp(newMenuTypeString, "normal", length) == 0) {
+            menuType = MASTER_MENU;
+    	} else if (strncmp(newMenuTypeString, "tearoff", length) == 0) {
+            menuType = TEAROFF_MENU;
+    	} else if (strncmp(newMenuTypeString, "menubar", length) == 0) {
+            menuType = MENUBAR;
+    	} else {
+            Tcl_AppendResult(menuPtr->interp, 
+            	    "bad menu type - must be normal, tearoff, or menubar",
+        	    (char *) NULL);
+            return TCL_ERROR;
+    	}
+    }
+
+    commandObjPtr = Tcl_NewListObj(0, (Tcl_Obj **) NULL);
+    Tcl_ListObjAppendElement(menuPtr->interp, commandObjPtr,
+    	    Tcl_NewStringObj("tkMenuDup", -1));
+    Tcl_ListObjAppendElement(menuPtr->interp, commandObjPtr,
+    	    Tcl_NewStringObj(Tk_PathName(menuPtr->tkwin), -1));
+    Tcl_ListObjAppendElement(menuPtr->interp, commandObjPtr,
+    	    Tcl_NewStringObj(newMenuName, -1));
+    if ((newMenuTypeString == NULL) || (newMenuTypeString[0] == '\0')) {
+    	Tcl_ListObjAppendElement(menuPtr->interp, commandObjPtr,
+    		Tcl_NewStringObj("normal", -1));
+    } else {
+    	Tcl_ListObjAppendElement(menuPtr->interp, commandObjPtr,
+    		Tcl_NewStringObj(newMenuTypeString, -1));
+    }
+    Tcl_IncrRefCount(commandObjPtr);
+    Tcl_Preserve((ClientData) menuPtr);
+    returnResult = Tcl_EvalObj(menuPtr->interp, commandObjPtr);
+    Tcl_DecrRefCount(commandObjPtr);
+
+    /*
+     * Make sure the tcl command actually created the clone.
+     */
+    
+    if ((returnResult == TCL_OK) &&
+    	    ((menuRefPtr = TkFindMenuReferences(menuPtr->interp, newMenuName))
+	    != (TkMenuReferences *) NULL)
+	    && (menuPtr->numEntries == menuRefPtr->menuPtr->numEntries)) {
+    	TkMenu *newMenuPtr = menuRefPtr->menuPtr;
+	char *newArgv[3];
+	int i, numElements;
+
+	/*
+	 * Now put this newly created menu into the parent menu's instance
+	 * chain.
+	 */
+
+	if (menuPtr->nextInstancePtr == NULL) {
+	    menuPtr->nextInstancePtr = newMenuPtr;
+	    newMenuPtr->masterMenuPtr = menuPtr->masterMenuPtr;
+	} else {
+	    TkMenu *masterMenuPtr;
+	    
+	    masterMenuPtr = menuPtr->masterMenuPtr;
+	    newMenuPtr->nextInstancePtr = masterMenuPtr->nextInstancePtr;
+	    masterMenuPtr->nextInstancePtr = newMenuPtr;
+	    newMenuPtr->masterMenuPtr = masterMenuPtr;
+	}
+   	
+   	/*
+   	 * Add the master menu's window to the bind tags for this window
+   	 * after this window's tag. This is so the user can bind to either
+   	 * this clone (which may not be easy to do) or the entire menu
+   	 * clone structure.
+   	 */
+   	
+   	newArgv[0] = "bindtags";
+   	newArgv[1] = Tk_PathName(newMenuPtr->tkwin);
+   	if (Tk_BindtagsCmd((ClientData)newMenuPtr->tkwin, 
+   		newMenuPtr->interp, 2, newArgv) == TCL_OK) {
+   	    char *windowName;
+   	    Tcl_Obj *bindingsPtr = 
+   	    		Tcl_NewStringObj(newMenuPtr->interp->result, -1);
+   	    Tcl_Obj *elementPtr;
+     
+   	    Tcl_ListObjLength(newMenuPtr->interp, bindingsPtr, &numElements);
+   	    for (i = 0; i < numElements; i++) {
+   	    	Tcl_ListObjIndex(newMenuPtr->interp, bindingsPtr, i,
+			&elementPtr);
+   	    	windowName = Tcl_GetStringFromObj(elementPtr, NULL);
+   	    	if (strcmp(windowName, Tk_PathName(newMenuPtr->tkwin))
+   	    		== 0) {
+   	    	    Tcl_Obj *newElementPtr = Tcl_NewStringObj(
+   	    	    	    Tk_PathName(newMenuPtr->masterMenuPtr->tkwin), -1);
+   	    	    Tcl_ListObjReplace(menuPtr->interp, bindingsPtr,
+   	    	    	    i + 1, 0, 1, &newElementPtr);
+   	    	    newArgv[2] = Tcl_GetStringFromObj(bindingsPtr, NULL);
+   	    	    Tk_BindtagsCmd((ClientData)newMenuPtr->tkwin,
+   	    	    	    menuPtr->interp, 3, newArgv);
+   	    	    break;
+   	    	}
+   	    }
+   	    Tcl_DecrRefCount(bindingsPtr);   	    
+   	}
+   	Tcl_ResetResult(menuPtr->interp);
+      	
+   	/*
+   	 * Clone all of the cascade menus that this menu points to.
+   	 */
+   	
+   	for (i = 0; i < menuPtr->numEntries; i++) {
+   	    char *newCascadeName;
+   	    TkMenuReferences *cascadeRefPtr;
+   	    TkMenu *oldCascadePtr;
+   	    
+   	    if ((menuPtr->entries[i]->type == CASCADE_ENTRY)
+		&& (menuPtr->entries[i]->name != NULL)) {
+   	    	cascadeRefPtr =
+			TkFindMenuReferences(menuPtr->interp,
+			menuPtr->entries[i]->name);
+   	    	if ((cascadeRefPtr != NULL) && (cascadeRefPtr->menuPtr)) {
+   	    	    char *nameString;
+		    
+   	    	    oldCascadePtr = cascadeRefPtr->menuPtr;
+
+		    nameString = Tk_PathName(newMenuPtr->tkwin);
+   	    	    newCascadeName = TkNewMenuName(menuPtr->interp,
+   	    	     	    nameString, oldCascadePtr);
+		    CloneMenu(oldCascadePtr, newCascadeName, NULL);
+
+		    newArgv[0] = "-menu";
+		    newArgv[1] = newCascadeName;
+		    ConfigureMenuEntry(newMenuPtr->entries[i], 2, newArgv, 
+		    	    TK_CONFIG_ARGV_ONLY);
+		    ckfree(newCascadeName);
+   	    	}
+   	    }
+   	}
+   	
+    	returnResult = TCL_OK;
+    } else {
+    	returnResult = TCL_ERROR;
+    }
+    Tcl_Release((ClientData) menuPtr);
+    return returnResult;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * MenuDoYPosition --
+ *
+ *	Given arguments from an option command line, returns the Y position.
+ *
+ * Results:
+ *	Returns TCL_OK or TCL_Error
+ *
+ * Side effects:
+ *	yPosition is set to the Y-position of the menu entry.
+ *
+ *----------------------------------------------------------------------
+ */
+    
+static int
+MenuDoYPosition(interp, menuPtr, arg)
+    Tcl_Interp *interp;
+    TkMenu *menuPtr;
+    char *arg;
+{
+    int index;
+    
+    TkRecomputeMenu(menuPtr);
+    if (TkGetMenuIndex(interp, menuPtr, arg, 0, &index) != TCL_OK) {
+    	goto error;
+    }
+    if (index < 0) {
+        interp->result = "0";
+    } else {
+    	sprintf(interp->result, "%d", menuPtr->entries[index]->y);
+    }
+    return TCL_OK;
+    
+error:
+    return TCL_ERROR;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * GetIndexFromCoords --
+ *
+ *	Given a string of the form "@int", return the menu item corresponding
+ *	to int.
+ *
+ * Results:
+ *	If int is a valid number, *indexPtr will be the number of the menuentry
+ *	that is the correct height. If int is invaled, *indexPtr will be
+ *	unchanged. Returns appropriate Tcl error number.
+ *
+ * Side effects:
+ *	If int is invalid, interp's result will set to NULL.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+GetIndexFromCoords(interp, menuPtr, string, indexPtr)
+    Tcl_Interp *interp;		/* interp of menu */
+    TkMenu *menuPtr;		/* the menu we are searching */
+    char *string;		/* The @string we are parsing */
+    int *indexPtr;		/* The index of the item that matches */
+{
+    int x, y, i;
+    char *p, *end;
+    
+    TkRecomputeMenu(menuPtr);
+    p = string + 1;
+    y = strtol(p, &end, 0);
+    if (end == p) {
+	goto error;
+    }
+    if (*end == ',') {
+	x = y;
+	p = end + 1;
+	y = strtol(p, &end, 0);
+	if (end == p) {
+	    goto error;
+	}
+    } else {
+	x = menuPtr->borderWidth;
+    }
+    
+    for (i = 0; i < menuPtr->numEntries; i++) {
+	if ((x >= menuPtr->entries[i]->x) && (y >= menuPtr->entries[i]->y)
+		&& (x < (menuPtr->entries[i]->x + menuPtr->entries[i]->width))
+		&& (y < (menuPtr->entries[i]->y
+		+ menuPtr->entries[i]->height))) {
+	    break;
+	}
+    }
+    if (i >= menuPtr->numEntries) {
+	/* i = menuPtr->numEntries - 1; */
+	i = -1;
+    }
+    *indexPtr = i;
+    return TCL_OK;
+
+    error:
+    Tcl_SetResult(interp, (char *) NULL, TCL_STATIC);
+    return TCL_ERROR;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * RecursivelyDeleteMenu --
+ *
+ *	Deletes a menu and any cascades underneath it. Used for deleting
+ *	instances when a menu is no longer being used as a menubar,
+ *	for instance.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Destroys the menu and all cascade menus underneath it.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+RecursivelyDeleteMenu(menuPtr)
+    TkMenu *menuPtr;		/* The menubar instance we are deleting */
+{
+    int i;
+    TkMenuEntry *mePtr;
+    
+    for (i = 0; i < menuPtr->numEntries; i++) {
+    	mePtr = menuPtr->entries[i];
+    	if ((mePtr->type == CASCADE_ENTRY)
+    		&& (mePtr->childMenuRefPtr != NULL)
+    		&& (mePtr->childMenuRefPtr->menuPtr != NULL)) {
+    	    RecursivelyDeleteMenu(mePtr->childMenuRefPtr->menuPtr);
+    	}
+    }
+    Tk_DestroyWindow(menuPtr->tkwin);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkNewMenuName --
+ *
+ *	Makes a new unique name for a cloned menu. Will be a child
+ *	of oldName.
+ *
+ * Results:
+ *	Returns a char * which has been allocated; caller must free.
+ *
+ * Side effects:
+ *	Memory is allocated.
+ *
+ *----------------------------------------------------------------------
+ */
+
+char *
+TkNewMenuName(interp, parentName, menuPtr)
+    Tcl_Interp *interp;		/* The interp the new name has to live in.*/
+    char *parentName;		/* The prefix path of the new name. */
+    TkMenu *menuPtr;		/* The menu we are cloning. */
+{
+    Tcl_DString resultDString;
+    Tcl_DString childDString;
+    char *destString;
+    int offset, i;
+    int doDot = parentName[strlen(parentName) - 1] != '.';
+    Tcl_CmdInfo cmdInfo;
+    char *returnString;
+    Tcl_HashTable *nameTablePtr = NULL;
+    TkWindow *winPtr = (TkWindow *) menuPtr->tkwin;
+    if (winPtr->mainPtr != NULL) {
+	nameTablePtr = &(winPtr->mainPtr->nameTable);
+    }
+    
+    Tcl_DStringInit(&childDString);
+    Tcl_DStringAppend(&childDString, Tk_PathName(menuPtr->tkwin), -1);
+    for (destString = Tcl_DStringValue(&childDString);
+    	    *destString != '\0'; destString++) {
+    	if (*destString == '.') {
+    	    *destString = '#';
+    	}
+    }
+    
+    offset = 0;
+    
+    for (i = 0; ; i++) {
+    	if (i == 0) {
+    	    Tcl_DStringInit(&resultDString);
+    	    Tcl_DStringAppend(&resultDString, parentName, -1);
+    	    if (doDot) {
+    	    	Tcl_DStringAppend(&resultDString, ".", -1);
+    	    }
+    	    Tcl_DStringAppend(&resultDString,
+    	    	    Tcl_DStringValue(&childDString), -1);
+    	    destString = Tcl_DStringValue(&resultDString);
+    	} else {
+    	    if (i == 1) {
+    	    	offset = Tcl_DStringLength(&resultDString);
+    	    	Tcl_DStringSetLength(&resultDString, offset + 10);
+    	    	destString = Tcl_DStringValue(&resultDString);
+    	    }
+    	    sprintf(destString + offset, "%d", i);
+    	}
+    	if ((Tcl_GetCommandInfo(interp, destString, &cmdInfo) == 0)
+		&& ((nameTablePtr == NULL)
+		|| (Tcl_FindHashEntry(nameTablePtr, destString) == NULL))) {
+    	    break;
+    	}
+    }
+    returnString = ckalloc(strlen(destString) + 1);
+    strcpy(returnString, destString);
+    Tcl_DStringFree(&resultDString);
+    Tcl_DStringFree(&childDString);
+    return returnString;    	   
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkSetWindowMenuBar --
+ *
+ *	Associates a menu with a window. Called by ConfigureFrame in
+ *	in response to a "-menu .foo" configuration option for a top
+ *	level.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	The old menu clones for the menubar are thrown away, and a
+ *	handler is set up to allocate the new ones.
+ *
+ *----------------------------------------------------------------------
+ */
+void
+TkSetWindowMenuBar(interp, tkwin, oldMenuName, menuName)
+    Tcl_Interp *interp;		/* The interpreter the toplevel lives in. */
+    Tk_Window tkwin;		/* The toplevel window */
+    char *oldMenuName;		/* The name of the menubar previously set in
+    				 * this toplevel. NULL means no menu was
+				 * set previously. */
+    char *menuName;		/* The name of the new menubar that the
+				 * toplevel needs to be set to. NULL means
+				 * that their is no menu now. */
+{
+    TkMenuTopLevelList *topLevelListPtr, *prevTopLevelPtr;
+    TkMenu *menuPtr;
+    TkMenuReferences *menuRefPtr;
+    
+    TkMenuInit();
+
+    /*
+     * Destroy the menubar instances of the old menu. Take this window
+     * out of the old menu's top level reference list.
+     */
+    
+    if (oldMenuName != NULL) {
+        menuRefPtr = TkFindMenuReferences(interp, oldMenuName);
+    	if (menuRefPtr != NULL) {
+
+	    /*
+	     * Find the menubar instance that is to be removed. Destroy
+	     * it and all of the cascades underneath it.
+	     */
+
+	    if (menuRefPtr->menuPtr != NULL) {    	    
+    	    	TkMenu *instancePtr;
+
+    	    	menuPtr = menuRefPtr->menuPtr;
+    	        	    
+    	    	for (instancePtr = menuPtr->masterMenuPtr;
+		        instancePtr != NULL; 
+    	    	    	instancePtr = instancePtr->nextInstancePtr) {
+    	    	    if (instancePtr->menuType == MENUBAR 
+    	    		    && instancePtr->parentTopLevelPtr == tkwin) {
+    	    	    	RecursivelyDeleteMenu(instancePtr);
+    	    	    	break;
+    	    	    }
+    	    	}
+    	    }
+ 
+ 	    /*
+ 	     * Now we need to remove this toplevel from the list of toplevels
+	     * that reference this menu.
+ 	     */
+ 
+            for (topLevelListPtr = menuRefPtr->topLevelListPtr,
+		    prevTopLevelPtr = NULL;
+		    (topLevelListPtr != NULL) 
+            	    && (topLevelListPtr->tkwin != tkwin);
+		    prevTopLevelPtr = topLevelListPtr,
+		    topLevelListPtr = topLevelListPtr->nextPtr) {
+
+		/*
+		 * Empty loop body.
+		 */
+		
+            }
+
+	    /*
+	     * Now we have found the toplevel reference that matches the
+	     * tkwin; remove this reference from the list.
+	     */
+
+	    if (topLevelListPtr != NULL) {
+            	if (prevTopLevelPtr == NULL) {
+		    menuRefPtr->topLevelListPtr =
+			    menuRefPtr->topLevelListPtr->nextPtr;
+		} else {
+            	    prevTopLevelPtr->nextPtr = topLevelListPtr->nextPtr;
+            	}
+            	ckfree((char *) topLevelListPtr);
+            	TkFreeMenuReferences(menuRefPtr);
+            }
+        }
+    }
+
+    /*
+     * Now, add the clone references for the new menu.
+     */
+    
+    if (menuName != NULL && menuName[0] != 0) {
+    	TkMenu *menuBarPtr = NULL;
+
+	menuRefPtr = TkCreateMenuReferences(interp, menuName);    	
+    	
+    	menuPtr = menuRefPtr->menuPtr;
+    	if (menuPtr != NULL) {
+   	    char *cloneMenuName;
+   	    TkMenuReferences *cloneMenuRefPtr;
+	    char *newArgv[4];
+    	
+            /*
+             * Clone the menu and all of the cascades underneath it.
+             */
+
+    	    cloneMenuName = TkNewMenuName(interp, Tk_PathName(tkwin),
+    	    	    menuPtr);
+            CloneMenu(menuPtr, cloneMenuName, "menubar");
+	    
+            cloneMenuRefPtr = TkFindMenuReferences(interp, cloneMenuName);
+            if ((cloneMenuRefPtr != NULL)
+		    && (cloneMenuRefPtr->menuPtr != NULL)) {
+            	cloneMenuRefPtr->menuPtr->parentTopLevelPtr = tkwin;
+            	menuBarPtr = cloneMenuRefPtr->menuPtr;
+		newArgv[0] = "-cursor";
+		newArgv[1] = "";
+		ConfigureMenu(menuPtr->interp, cloneMenuRefPtr->menuPtr,
+			2, newArgv, TK_CONFIG_ARGV_ONLY);
+            }
+
+	    TkpSetWindowMenuBar(tkwin, menuBarPtr);
+		        
+            ckfree(cloneMenuName);
+        } else {
+    	    TkpSetWindowMenuBar(tkwin, NULL);
+	}
+
+        
+        /*
+         * Add this window to the menu's list of windows that refer
+         * to this menu.
+         */
+
+        topLevelListPtr = (TkMenuTopLevelList *)
+		ckalloc(sizeof(TkMenuTopLevelList));
+        topLevelListPtr->tkwin = tkwin;
+        topLevelListPtr->nextPtr = menuRefPtr->topLevelListPtr;
+        menuRefPtr->topLevelListPtr = topLevelListPtr;
+    } else {
+	TkpSetWindowMenuBar(tkwin, NULL);
+    }
+    TkpSetMainMenubar(interp, tkwin, menuName);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * DestroyMenuHashTable --
+ *
+ *	Called when an interp is deleted and a menu hash table has
+ *	been set in it.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	The hash table is destroyed.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+DestroyMenuHashTable(clientData, interp)
+    ClientData clientData;	/* The menu hash table we are destroying */
+    Tcl_Interp *interp;		/* The interpreter we are destroying */
+{
+    Tcl_DeleteHashTable((Tcl_HashTable *) clientData);
+    ckfree((char *) clientData);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkGetMenuHashTable --
+ *
+ *	For a given interp, give back the menu hash table that goes with
+ *	it. If the hash table does not exist, it is created.
+ *
+ * Results:
+ *	Returns a hash table pointer.
+ *
+ * Side effects:
+ *	A new hash table is created if there were no table in the interp
+ *	originally.
+ *
+ *----------------------------------------------------------------------
+ */
+
+Tcl_HashTable *
+TkGetMenuHashTable(interp)
+    Tcl_Interp *interp;		/* The interp we need the hash table in.*/
+{
+    Tcl_HashTable *menuTablePtr;
+
+    menuTablePtr = (Tcl_HashTable *) Tcl_GetAssocData(interp, MENU_HASH_KEY,
+	    NULL);
+    if (menuTablePtr == NULL) {
+	menuTablePtr = (Tcl_HashTable *) ckalloc(sizeof(Tcl_HashTable));
+	Tcl_InitHashTable(menuTablePtr, TCL_STRING_KEYS);
+	Tcl_SetAssocData(interp, MENU_HASH_KEY, DestroyMenuHashTable,
+		(ClientData) menuTablePtr);
+    }
+    return menuTablePtr;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkCreateMenuReferences --
+ *
+ *	Given a pathname, gives back a pointer to a TkMenuReferences structure.
+ *	If a reference is not already in the hash table, one is created.
+ *
+ * Results:
+ *	Returns a pointer to a menu reference structure. Should not
+ *	be freed by calller; when a field of the reference is cleared,
+ *	TkFreeMenuReferences should be called.
+ *
+ * Side effects:
+ *	A new hash table entry is created if there were no references
+ *	to the menu originally.
+ *
+ *----------------------------------------------------------------------
+ */
+
+TkMenuReferences *
+TkCreateMenuReferences(interp, pathName)
+    Tcl_Interp *interp;
+    char *pathName;		/* The path of the menu widget */
+{
+    Tcl_HashEntry *hashEntryPtr;
+    TkMenuReferences *menuRefPtr;
+    int newEntry;
+    Tcl_HashTable *menuTablePtr = TkGetMenuHashTable(interp);
+
+    hashEntryPtr = Tcl_CreateHashEntry(menuTablePtr, pathName, &newEntry);
+    if (newEntry) {
+    	menuRefPtr = (TkMenuReferences *) ckalloc(sizeof(TkMenuReferences));
+    	menuRefPtr->menuPtr = NULL;
+    	menuRefPtr->topLevelListPtr = NULL;
+    	menuRefPtr->parentEntryPtr = NULL;
+    	menuRefPtr->hashEntryPtr = hashEntryPtr;
+    	Tcl_SetHashValue(hashEntryPtr, (char *) menuRefPtr);
+    } else {
+    	menuRefPtr = (TkMenuReferences *) Tcl_GetHashValue(hashEntryPtr);
+    }
+    return menuRefPtr;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkFindMenuReferences --
+ *
+ *	Given a pathname, gives back a pointer to the TkMenuReferences
+ *	structure.
+ *
+ * Results:
+ *	Returns a pointer to a menu reference structure. Should not
+ *	be freed by calller; when a field of the reference is cleared,
+ *	TkFreeMenuReferences should be called. Returns NULL if no reference
+ *	with this pathname exists.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+TkMenuReferences *
+TkFindMenuReferences(interp, pathName)
+    Tcl_Interp *interp;		/* The interp the menu is living in. */
+    char *pathName;		/* The path of the menu widget */
+{
+    Tcl_HashEntry *hashEntryPtr;
+    TkMenuReferences *menuRefPtr = NULL;
+    Tcl_HashTable *menuTablePtr;
+
+    menuTablePtr = TkGetMenuHashTable(interp);
+    hashEntryPtr = Tcl_FindHashEntry(menuTablePtr, pathName);
+    if (hashEntryPtr != NULL) {
+    	menuRefPtr = (TkMenuReferences *) Tcl_GetHashValue(hashEntryPtr);
+    }
+    return menuRefPtr;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkFreeMenuReferences --
+ *
+ *	This is called after one of the fields in a menu reference
+ *	is cleared. It cleans up the ref if it is now empty.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	If this is the last field to be cleared, the menu ref is
+ *	taken out of the hash table.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TkFreeMenuReferences(menuRefPtr)
+    TkMenuReferences *menuRefPtr;		/* The menu reference to
+						 * free */
+{
+    if ((menuRefPtr->menuPtr == NULL) 
+    	    && (menuRefPtr->parentEntryPtr == NULL)
+    	    && (menuRefPtr->topLevelListPtr == NULL)) {
+    	Tcl_DeleteHashEntry(menuRefPtr->hashEntryPtr);
+    	ckfree((char *) menuRefPtr);
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * DeleteMenuCloneEntries --
+ *
+ *	For every clone in this clone chain, delete the menu entries
+ *	given by the parameters.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	The appropriate entries are deleted from all clones of this menu.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+DeleteMenuCloneEntries(menuPtr, first, last)
+    TkMenu *menuPtr;		    /* the menu the command was issued with */
+    int	first;			    /* the zero-based first entry in the set
+				     * of entries to delete. */
+    int last;			    /* the zero-based last entry */
+{
+
+    TkMenu *menuListPtr;
+    int numDeleted, i;
+
+    numDeleted = last + 1 - first;
+    for (menuListPtr = menuPtr->masterMenuPtr; menuListPtr != NULL;
+	    menuListPtr = menuListPtr->nextInstancePtr) {
+	for (i = last; i >= first; i--) {
+	    Tcl_EventuallyFree((ClientData) menuListPtr->entries[i],
+		    DestroyMenuEntry);
+	}
+	for (i = last + 1; i < menuListPtr->numEntries; i++) {
+	    menuListPtr->entries[i - numDeleted] = menuListPtr->entries[i];
+	    menuListPtr->entries[i - numDeleted]->index = i;
+	}
+	menuListPtr->numEntries -= numDeleted;
+	if (menuListPtr->numEntries == 0) {
+	    ckfree((char *) menuListPtr->entries);
+	    menuListPtr->entries = NULL;
+	}
+	if ((menuListPtr->active >= first) 
+		&& (menuListPtr->active <= last)) {
+	    menuListPtr->active = -1;
+	} else if (menuListPtr->active > last) {
+	    menuListPtr->active -= numDeleted;
+	}
+	TkEventuallyRecomputeMenu(menuListPtr);
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkMenuInit --
+ *
+ *	Sets up the hash tables and the variables used by the menu package.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	lastMenuID gets initialized, and the parent hash and the command hash
+ *	are allocated.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TkMenuInit()
+{
+    if (!menusInitialized) {
+    	TkpMenuInit();
+    	menusInitialized = 1;
+    }
+}