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-rw-r--r--src/gui/kernel/qwidget_mac.mm6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/gui/kernel/qwidget_mac.mm b/src/gui/kernel/qwidget_mac.mm
index 78df09d..6851e25 100644
--- a/src/gui/kernel/qwidget_mac.mm
+++ b/src/gui/kernel/qwidget_mac.mm
@@ -3176,6 +3176,12 @@ void QWidgetPrivate::show_sys()
#ifndef QT_MAC_USE_COCOA
SizeWindow(window, q->width(), q->height(), true);
#endif
+
+#ifdef QT_MAC_USE_COCOA
+ // Make sure that we end up sending a repaint event to
+ // the widget if the window has been visible one before:
+ [qt_mac_get_contentview_for(window) setNeedsDisplay:YES];
+#endif
if(qt_mac_is_macsheet(q)) {
qt_event_request_showsheet(q);
} else if(qt_mac_is_macdrawer(q)) {