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-rw-r--r--win/tkWinInit.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/win/tkWinInit.c b/win/tkWinInit.c
index 1ec2642..bdedb2b 100644
--- a/win/tkWinInit.c
+++ b/win/tkWinInit.c
@@ -9,7 +9,7 @@
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tkWinInit.c,v 1.10 2002/12/08 00:46:51 hobbs Exp $
+ * RCS: @(#) $Id: tkWinInit.c,v 1.11 2003/02/18 19:18:33 hobbs Exp $
*/
#include "tkWinInt.h"
@@ -126,8 +126,17 @@ TkpDisplayWarning(msg, title)
Tcl_DString msgString, titleString;
Tcl_Encoding unicodeEncoding = TkWinGetUnicodeEncoding();
+ /*
+ * Truncate MessageBox string if it is too long to not overflow
+ * the screen and cause possible oversized window error.
+ */
+#define TK_MAX_WARN_LEN (1024 * sizeof(WCHAR))
Tcl_UtfToExternalDString(unicodeEncoding, msg, -1, &msgString);
Tcl_UtfToExternalDString(unicodeEncoding, title, -1, &titleString);
+ if (Tcl_DStringLength(&msgString) > TK_MAX_WARN_LEN) {
+ Tcl_DStringSetLength(&msgString, TK_MAX_WARN_LEN);
+ Tcl_DStringAppend(&msgString, (char *) L" ...", 4 * sizeof(WCHAR));
+ }
MessageBoxW(NULL, (WCHAR *) Tcl_DStringValue(&msgString),
(WCHAR *) Tcl_DStringValue(&titleString),
MB_OK | MB_ICONEXCLAMATION | MB_SYSTEMMODAL