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-rw-r--r--win/tkWinDialog.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/win/tkWinDialog.c b/win/tkWinDialog.c
index 8635951..ec6ede9 100644
--- a/win/tkWinDialog.c
+++ b/win/tkWinDialog.c
@@ -8,7 +8,7 @@
* See the file "license.terms" for information on usage and redistribution of
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tkWinDialog.c,v 1.49 2007/12/13 15:28:55 dgp Exp $
+ * RCS: @(#) $Id: tkWinDialog.c,v 1.50 2008/01/31 23:31:02 hobbs Exp $
*
*/
@@ -2202,7 +2202,7 @@ Tk_MessageBoxObjCmd(
tsdPtr->hMsgBoxHook = SetWindowsHookEx(WH_CBT, MsgBoxCBTProc, NULL,
GetCurrentThreadId());
winCode = MessageBoxW(hWnd, Tcl_GetUnicode(tmpObj),
- titleObj ? Tcl_GetUnicode(titleObj) : NULL, flags);
+ titleObj ? Tcl_GetUnicode(titleObj) : L"", flags);
UnhookWindowsHookEx(tsdPtr->hMsgBoxHook);
(void) Tcl_SetServiceMode(oldMode);