1 files changed, 10 insertions, 0 deletions
diff --git a/generic/tkTextDisp.c b/generic/tkTextDisp.c
index 2516e1c..cd232bf 100644
--- a/generic/tkTextDisp.c
+++ b/generic/tkTextDisp.c
@@ -3968,6 +3968,16 @@ DisplayText(
     UpdateDisplayInfo(textPtr);
     dInfoPtr->dLinesInvalidated = 0;
 
+#ifdef MAC_OSX_TK
+    /*
+     * Make sure that unmapped subwindows really have been unmapped.
+     * If the unmap request is pending as an idle request, the window
+     * can get redrawn on top of the widget.
+     */
+     while (Tcl_DoOneEvent(TCL_IDLE_EVENTS|TCL_DONT_WAIT)) {}
+#endif
+
+
     /*
      * See if it's possible to bring some parts of the screen up-to-date by
      * scrolling (copying from other parts of the screen). We have to be