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-rw-r--r--src/gui/kernel/qwidget_x11.cpp9
1 files changed, 7 insertions, 2 deletions
diff --git a/src/gui/kernel/qwidget_x11.cpp b/src/gui/kernel/qwidget_x11.cpp
index 241a13f..3eec5c7 100644
--- a/src/gui/kernel/qwidget_x11.cpp
+++ b/src/gui/kernel/qwidget_x11.cpp
@@ -952,8 +952,13 @@ static void qt_x11_recreateWidget(QWidget *widget)
// recreate their GL context, which in turn causes them to choose
// their visual again. Now that WA_TranslucentBackground is set,
// QGLContext::chooseVisual will select an ARGB visual.
- QEvent e(QEvent::ParentChange);
- QApplication::sendEvent(widget, &e);
+
+ // QGLWidget expects a ParentAboutToChange to be sent first
+ QEvent aboutToChangeEvent(QEvent::ParentAboutToChange);
+ QApplication::sendEvent(widget, &aboutToChangeEvent);
+
+ QEvent parentChangeEvent(QEvent::ParentChange);
+ QApplication::sendEvent(widget, &parentChangeEvent);
} else {
// For regular widgets, reparent them with their parent which
// also triggers a recreation of the native window