1 files changed, 2 insertions, 2 deletions
diff --git a/src/plugins/styles/windowsvista/qwindowsxpstyle_p_p.h b/src/plugins/styles/windowsvista/qwindowsxpstyle_p_p.h
index ad7754e3d4..06b37a6e5c 100644
--- a/src/plugins/styles/windowsvista/qwindowsxpstyle_p_p.h
+++ b/src/plugins/styles/windowsvista/qwindowsxpstyle_p_p.h
@@ -241,8 +241,8 @@ public:
     bool isTransparent(XPThemeData &themeData);
     QRegion region(XPThemeData &themeData);
 
-    bool drawBackground(XPThemeData &themeData);
-    bool drawBackgroundThruNativeBuffer(XPThemeData &themeData, qreal aditionalDevicePixelRatio);
+    bool drawBackground(XPThemeData &themeData, qreal correctionFactor = 1);
+    bool drawBackgroundThruNativeBuffer(XPThemeData &themeData, qreal aditionalDevicePixelRatio, qreal correctionFactor);
     bool drawBackgroundDirectly(HDC dc, XPThemeData &themeData, qreal aditionalDevicePixelRatio);
 
     bool hasAlphaChannel(const QRect &rect);