diff options
| author | Morten Johan Sørvig <morten.sorvig@qt.io> | 2018-10-19 12:30:16 +0200 |
|---|---|---|
| committer | Liang Qi <liang.qi@qt.io> | 2018-11-11 09:10:42 +0000 |
| commit | f018e315fd654dcc0a22209e5a3506b4c8838e1c (patch) | |
| tree | 0caf67211f5fe836dd179b378612c0a16ebd55da /src/widgets/kernel/qwidgetbackingstore.cpp | |
| parent | e72613000edc46f3f2b354a698202ac0a4a32fb3 (diff) | |
QWidgetBackingStore: Don't flush foreign windows
Foreign windows do not have Qt backingstore content,
and are also not capable of accepting Qt content.
Change-Id: I959c7cdc32e6f4322497e132a436ce7d610a4106
Fixes: QTBUG-71183
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Diffstat (limited to 'src/widgets/kernel/qwidgetbackingstore.cpp')
| -rw-r--r-- | src/widgets/kernel/qwidgetbackingstore.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/widgets/kernel/qwidgetbackingstore.cpp b/src/widgets/kernel/qwidgetbackingstore.cpp index b40c2d12ad..a32eb2a03b 100644 --- a/src/widgets/kernel/qwidgetbackingstore.cpp +++ b/src/widgets/kernel/qwidgetbackingstore.cpp @@ -101,6 +101,13 @@ void QWidgetBackingStore::qt_flush(QWidget *widget, const QRegion ®ion, QBack if (tlw->testAttribute(Qt::WA_DontShowOnScreen) || widget->testAttribute(Qt::WA_DontShowOnScreen)) return; + + // Foreign Windows do not have backing store content and must not be flushed + if (QWindow *widgetWindow = widget->windowHandle()) { + if (widgetWindow->type() == Qt::ForeignWindow) + return; + } + static bool fpsDebug = qEnvironmentVariableIntValue("QT_DEBUG_FPS"); if (fpsDebug) { if (!widgetBackingStore->perfFrames++) |