2 files changed, 3 insertions, 2 deletions
diff --git a/src/plugins/styles/windowsvista/qwindowsxpstyle.cpp b/src/plugins/styles/windowsvista/qwindowsxpstyle.cpp
index ff27cab98a..733b3a9e9c 100644
--- a/src/plugins/styles/windowsvista/qwindowsxpstyle.cpp
+++ b/src/plugins/styles/windowsvista/qwindowsxpstyle.cpp
@@ -122,7 +122,8 @@ static inline HDC hdcForWidgetBackingStore(const QWidget *widget)
 {
     if (QBackingStore *backingStore = backingStoreForWidget(widget)) {
         QPlatformNativeInterface *nativeInterface = QGuiApplication::platformNativeInterface();
-        return static_cast<HDC>(nativeInterface->nativeResourceForBackingStore(QByteArrayLiteral("getDC"), backingStore));
+        if (nativeInterface)
+            return static_cast<HDC>(nativeInterface->nativeResourceForBackingStore(QByteArrayLiteral("getDC"), backingStore));
     }
     return 0;
 }
diff --git a/src/widgets/kernel/qapplication_p.h b/src/widgets/kernel/qapplication_p.h
index 9983cc7d9e..019fad3fc3 100644
--- a/src/widgets/kernel/qapplication_p.h
+++ b/src/widgets/kernel/qapplication_p.h
@@ -242,7 +242,7 @@ public:
     static HWND getHWNDForWidget(const QWidget *widget)
     {
         if (QWindow *window = windowForWidget(widget))
-            if (window->handle())
+            if (window->handle() && QGuiApplication::platformNativeInterface())
                 return static_cast<HWND> (QGuiApplication::platformNativeInterface()->
                                           nativeResourceForWindow(QByteArrayLiteral("handle"), window));
         return 0;