Merge remote-tracking branch 'origin/5.9' into 5.10

 Conflicts:
	src/corelib/io/qprocess_win.cpp

Change-Id: Ib61b74a69922ec1e9eecbba5f75352b4ec167fa9

1 files changed, 2 insertions, 1 deletions

diff --git a/src/widgets/kernel/qwidget.cpp b/src/widgets/kernel/qwidget.cpp
index 680c179bd9..a973bee2cd 100644
--- a/src/widgets/kernel/qwidget.cpp
+++ b/src/widgets/kernel/qwidget.cpp
@@ -1482,7 +1482,8 @@ void QWidgetPrivate::create_sys(WId window, bool initializeWindow, bool destroyO
     if (q->windowType() != Qt::Desktop || q->testAttribute(Qt::WA_NativeWindow)) {
         win->create();
         // Enable nonclient-area events for QDockWidget and other NonClientArea-mouse event processing.
-        win->handle()->setFrameStrutEventsEnabled(true);
+        if (QPlatformWindow *platformWindow = win->handle())
+            platformWindow->setFrameStrutEventsEnabled(true);
     }
 
     data.window_flags = win->flags();