Avoid the flushing of widgets that shouldn't show on screen.

This is mostly fixing errors appearing on the
command-line when using native dialogs.

Task-number: QTBUG-15169
Reviewed-by: Samuel Rødal

1 files changed, 5 insertions, 0 deletions

diff --git a/src/gui/painting/qwindowsurface_raster.cpp b/src/gui/painting/qwindowsurface_raster.cpp
index 217723f..ae73d7d 100644
--- a/src/gui/painting/qwindowsurface_raster.cpp
+++ b/src/gui/painting/qwindowsurface_raster.cpp
@@ -251,6 +251,11 @@ void QRasterWindowSurface::flush(QWidget *widget, const QRegion &rgn, const QPoi
 
 #ifdef Q_WS_MAC
 
+    // This is mainly done for native components like native "open file" dialog.
+    if (widget->testAttribute(Qt::WA_DontShowOnScreen)) {
+        return;
+    }
+
 #ifdef QT_MAC_USE_COCOA
     // Unified toolbar hack.
     QMainWindow* mWindow = qobject_cast<QMainWindow*>(widget->window());