2 files changed, 5 insertions, 15 deletions
diff --git a/src/plugins/platforms/windows/qwindowswindow.cpp b/src/plugins/platforms/windows/qwindowswindow.cpp
index d58d10b4d5b..d9fcb99f426 100644
--- a/src/plugins/platforms/windows/qwindowswindow.cpp
+++ b/src/plugins/platforms/windows/qwindowswindow.cpp
@@ -1100,7 +1100,7 @@ HDC QWindowsWindow::getDC()
 
 void QWindowsWindow::releaseDC()
 {
-    if (m_hdc && !testFlag(DCFromBeginPaint)) {
+    if (m_hdc) {
         ReleaseDC(handle(), m_hdc);
         m_hdc = 0;
     }
@@ -1124,22 +1124,13 @@ bool QWindowsWindow::handleWmPaint(HWND hwnd, UINT message,
                                                              QRegion(qrectFromRECT(ps.rcPaint)));
         EndPaint(hwnd, &ps);
     } else {
-        const HDC dc = BeginPaint(hwnd, &ps);
+        BeginPaint(hwnd, &ps);
         const QRect updateRect = qrectFromRECT(ps.rcPaint);
-        if (updateRect.size() == m_data.geometry.size()) {
-            // Store DC for access by the backing store if it has the full size.
-            releaseDC();
-            setFlag(DCFromBeginPaint);
-            m_hdc = dc;
-        }
+
         if (QWindowsContext::verboseIntegration)
             qDebug() << __FUNCTION__ << this << window() << updateRect;
 
         QWindowSystemInterface::handleSynchronousExposeEvent(window(), QRegion(updateRect));
-        if (testFlag(DCFromBeginPaint)) {
-            clearFlag(DCFromBeginPaint);
-            m_hdc = 0;
-        }
         EndPaint(hwnd, &ps);
     }
     return true;
diff --git a/src/plugins/platforms/windows/qwindowswindow.h b/src/plugins/platforms/windows/qwindowswindow.h
index 2bcca8710f4..2171c7f7258 100644
--- a/src/plugins/platforms/windows/qwindowswindow.h
+++ b/src/plugins/platforms/windows/qwindowswindow.h
@@ -116,7 +116,7 @@ public:
 
     enum Flags
     {
-        DCFromBeginPaint = 0x1,
+        AutoMouseCapture = 0x1, //! Automatic mouse capture on button press.
         WithinSetParent = 0x2,
         FrameDirty = 0x4,            //! Frame outdated by setStyle, recalculate in next query.
         OpenGLSurface = 0x10,
@@ -126,8 +126,7 @@ public:
         SizeGripOperation = 0x100,
         FrameStrutEventsEnabled = 0x200,
         SynchronousGeometryChangeEvent = 0x400,
-        WithinSetStyle = 0x800,
-        AutoMouseCapture = 0x1000 //! Automatic mouse capture on button press.
+        WithinSetStyle = 0x800
     };
 
     struct WindowData