2 files changed, 7 insertions, 4 deletions
diff --git a/src/plugins/platforms/windows/qwindowswindow.cpp b/src/plugins/platforms/windows/qwindowswindow.cpp
index a7cc36951a..5987324ac1 100644
--- a/src/plugins/platforms/windows/qwindowswindow.cpp
+++ b/src/plugins/platforms/windows/qwindowswindow.cpp
@@ -1356,8 +1356,7 @@ bool QWindowsWindow::m_borderInFullScreenDefault = false;
 QWindowsWindow::QWindowsWindow(QWindow *aWindow, const QWindowsWindowData &data) :
     QWindowsBaseWindow(aWindow),
     m_data(data),
-    m_cursor(new CursorHandle),
-    m_format(aWindow->requestedFormat())
+    m_cursor(new CursorHandle)
 #if QT_CONFIG(vulkan)
   , m_vkSurface(VK_NULL_HANDLE)
 #endif
@@ -1431,6 +1430,11 @@ void QWindowsWindow::initialize()
     }
 }
 
+QSurfaceFormat QWindowsWindow::format() const
+{
+    return window()->requestedFormat();
+}
+
 void QWindowsWindow::fireExpose(const QRegion &region, bool force)
 {
     if (region.isEmpty() && !force)
diff --git a/src/plugins/platforms/windows/qwindowswindow.h b/src/plugins/platforms/windows/qwindowswindow.h
index beed3e17df..827e4cc288 100644
--- a/src/plugins/platforms/windows/qwindowswindow.h
+++ b/src/plugins/platforms/windows/qwindowswindow.h
@@ -249,7 +249,7 @@ public:
 
     using QPlatformWindow::screenForGeometry;
 
-    QSurfaceFormat format() const override { return m_format; }
+    QSurfaceFormat format() const override;
     void setGeometry(const QRect &rect) override;
     QRect geometry() const override { return m_data.geometry; }
     QRect normalGeometry() const override;
@@ -402,7 +402,6 @@ private:
     QWindowsOleDropTarget *m_dropTarget = nullptr;
     unsigned m_savedStyle = 0;
     QRect m_savedFrameGeometry;
-    const QSurfaceFormat m_format;
     HICON m_iconSmall = nullptr;
     HICON m_iconBig = nullptr;
     void *m_surface = nullptr;