diff options
| -rw-r--r-- | src/gui/kernel/qwidget_x11.cpp | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/gui/kernel/qwidget_x11.cpp b/src/gui/kernel/qwidget_x11.cpp index 241a13f842..3eec5c7331 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 |