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-rw-r--r--generic/tkPanedWindow.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/generic/tkPanedWindow.c b/generic/tkPanedWindow.c
index 3ae473a..c79be25 100644
--- a/generic/tkPanedWindow.c
+++ b/generic/tkPanedWindow.c
@@ -678,6 +678,15 @@ PanedWindowWidgetObjCmd(
if (objc <= 4) {
tkwin = Tk_NameToWindow(interp, Tcl_GetString(objv[2]),
pwPtr->tkwin);
+ if (tkwin == NULL) {
+ /*
+ * Just a plain old bad window; Tk_NameToWindow filled in an
+ * error message for us.
+ */
+
+ result = TCL_ERROR;
+ break;
+ }
for (i = 0; i < pwPtr->numSlaves; i++) {
if (pwPtr->slaves[i]->tkwin == tkwin) {
resultObj = Tk_GetOptionInfo(interp,