diff --git a/src/msw/bitmap.cpp b/src/msw/bitmap.cpp
index 433a4ff392..87c7ae89cb 100644
--- a/src/msw/bitmap.cpp
+++ b/src/msw/bitmap.cpp
@@ -1463,8 +1463,8 @@ extern HBITMAP wxInvertMask(HBITMAP hbmpMask, int w, int h)
         wxLogLastError(wxT("CreateBitmap"));
     }
 
-    ::SelectObject(hdcSrc, hbmpMask);
-    ::SelectObject(hdcDst, hbmpInvMask);
+    HGDIOBJ srcTmp = ::SelectObject(hdcSrc, hbmpMask);
+    HGDIOBJ dstTmp = ::SelectObject(hdcDst, hbmpInvMask);
     if ( !::BitBlt(hdcDst, 0, 0, w, h,
                    hdcSrc, 0, 0,
                    NOTSRCCOPY) )
@@ -1472,6 +1472,10 @@ extern HBITMAP wxInvertMask(HBITMAP hbmpMask, int w, int h)
         wxLogLastError(wxT("BitBlt"));
     }
 
+    // Deselect objects
+    SelectObject(hdcSrc,srcTmp);
+    SelectObject(hdcDst,dstTmp);
+    
     ::DeleteDC(hdcSrc);
     ::DeleteDC(hdcDst);