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| author | Friedemann Kleint <Friedemann.Kleint@digia.com> | 2013-08-22 10:06:33 +0200 |
|---|---|---|
| committer | The Qt Project <gerrit-noreply@qt-project.org> | 2013-08-22 16:44:37 +0200 |
| commit | 4e043026725b1dfd201bf432bdd0b28ba8867196 (patch) | |
| tree | 054ad36697d9ad04a2304e6d9513cde2f46cc4ec /src/gui/painting | |
| parent | 8a96679493bcb5e508cf438d6d6f18d0db7a43cc (diff) | |
Check for window handle in QBackingStore::flush().
Task-number: QTBUG-33062
Change-Id: Iab4ccc3a2a855ee7f6964659b53b3401af436212
Reviewed-by: Andy Shaw <andy.shaw@digia.com>
Diffstat (limited to 'src/gui/painting')
| -rw-r--r-- | src/gui/painting/qbackingstore.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/gui/painting/qbackingstore.cpp b/src/gui/painting/qbackingstore.cpp index edb5f66c5b..c1f7c6c738 100644 --- a/src/gui/painting/qbackingstore.cpp +++ b/src/gui/painting/qbackingstore.cpp @@ -97,6 +97,11 @@ void QBackingStore::flush(const QRegion ®ion, QWindow *win, const QPoint &off { if (!win) win = window(); + if (!win->handle()) { + qWarning() << "QBackingStore::flush() called for " + << win << " which does not have a handle."; + return; + } #ifdef QBACKINGSTORE_DEBUG if (win && win->isTopLevel() && !qt_window_private(win)->receivedExpose) { |