diff options
Diffstat (limited to 'generic/tkOldConfig.c')
| -rw-r--r-- | generic/tkOldConfig.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/generic/tkOldConfig.c b/generic/tkOldConfig.c index 70e0152..9ee2a14 100644 --- a/generic/tkOldConfig.c +++ b/generic/tkOldConfig.c @@ -11,7 +11,7 @@ * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tkOldConfig.c,v 1.5 1999/12/14 06:52:30 hobbs Exp $ + * RCS: @(#) $Id: tkOldConfig.c,v 1.6 2000/03/07 00:09:08 ericm Exp $ */ #include "tkPort.h" @@ -90,6 +90,15 @@ Tk_ConfigureWidget(interp, tkwin, specs, argc, argv, widgRec, flags) int hateFlags; /* If a spec contains any bits here, it's * not considered. */ + if (tkwin == NULL) { + /* + * Either we're not really in Tk, or the main window was destroyed and + * we're on our way out of the application + */ + Tcl_AppendResult(interp, "NULL main window", (char *)NULL); + return TCL_ERROR; + } + needFlags = flags & ~(TK_CONFIG_USER_BIT - 1); if (Tk_Depth(tkwin) <= 1) { hateFlags = TK_CONFIG_COLOR_ONLY; |