1 files changed, 5 insertions, 4 deletions
diff --git a/src/gui/kernel/qcocoaview_mac.mm b/src/gui/kernel/qcocoaview_mac.mm
index d255604..2c35be2 100644
--- a/src/gui/kernel/qcocoaview_mac.mm
+++ b/src/gui/kernel/qcocoaview_mac.mm
@@ -520,10 +520,11 @@ extern "C" {
 - (void)drawRect:(NSRect)aRect
 {
     if (QApplicationPrivate::graphicsSystem() != 0) {
-        if (QWidgetBackingStore *bs = qwidgetprivate->maybeBackingStore())
-            bs->markDirty(qwidget->rect(), qwidget);
-        qwidgetprivate->syncBackingStore(qwidget->rect());
-        return;
+        if (QWidgetBackingStore *bs = qwidgetprivate->maybeBackingStore()) {
+            // Drawing is handled on the window level
+            // See qcocoasharedwindowmethods_mac_p.
+            return;
+        }
     }
     CGContextRef cg = (CGContextRef)[[NSGraphicsContext currentContext] graphicsPort];
     qwidgetprivate->hd = cg;