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-rw-r--r--win/tkWinWm.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/win/tkWinWm.c b/win/tkWinWm.c
index 004397d..7660c04 100644
--- a/win/tkWinWm.c
+++ b/win/tkWinWm.c
@@ -12,7 +12,7 @@
* See the file "license.terms" for information on usage and redistribution of
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tkWinWm.c,v 1.131 2008/10/17 23:18:38 nijtmans Exp $
+ * RCS: @(#) $Id: tkWinWm.c,v 1.132 2008/11/15 00:00:27 patthoyts Exp $
*/
#include "tkWinInt.h"
@@ -4587,6 +4587,12 @@ WmManageCmd(
register WmInfo *wmPtr = winPtr->wmInfoPtr;
if (!Tk_IsTopLevel(frameWin)) {
+ if (!Tk_IsManageable(frameWin)) {
+ Tcl_AppendResult(interp, "window \"",
+ Tk_PathName(frameWin), "\" is not manageable: must be "
+ "a frame, labelframe or toplevel", NULL);
+ return TCL_ERROR;
+ }
TkFocusSplit(winPtr);
Tk_UnmapWindow(frameWin);
winPtr->flags |= TK_TOP_HIERARCHY|TK_TOP_LEVEL|TK_HAS_WRAPPER|TK_WIN_MANAGED;