1 files changed, 9 insertions, 1 deletions
diff --git a/win/tkWinWm.c b/win/tkWinWm.c
index ba52b32..e3948e0 100644
--- a/win/tkWinWm.c
+++ b/win/tkWinWm.c
@@ -2463,7 +2463,15 @@ TkpWmGetState(
 
 static void CheckForPointer(TkWindow *winPtr)
 {
-    POINT mouse;
+	if (winPtr == NULL || winPtr->mainPtr == NULL) {
+		/*
+		 * Bug [d233f01e2a] - clipboard clean up after main window destroyed
+		 * Nothing to do.
+		 */
+		return;
+	}
+
+	POINT mouse;
     int x, y;
     unsigned int state = TkWinGetModifierState();
     TkWindow **windows = TkWmStackorderToplevel(winPtr->mainPtr->winPtr);