quartz: Use SetWindowLongPtr to store a pointer value.

dlls/quartz/videorenderer.c

@@ -96,7 +96,7 @@ typedef struct VideoRendererImpl
 
 static LRESULT CALLBACK VideoWndProcA(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 {
-    VideoRendererImpl* pVideoRenderer = (VideoRendererImpl*)GetWindowLongA(hwnd, 0);
+    VideoRendererImpl* pVideoRenderer = (VideoRendererImpl*)GetWindowLongPtrW(hwnd, 0);
     LPRECT lprect = (LPRECT)lParam;
 
     if (pVideoRenderer && pVideoRenderer->hWndMsgDrain)
@@ -197,7 +197,7 @@ static BOOL CreateRenderingWindow(VideoRendererImpl* This)
         return FALSE;
     }
 
-    SetWindowLongA(This->hWnd, 0, (LONG)This);
+    SetWindowLongPtrW(This->hWnd, 0, (LONG_PTR)This);
 
     return TRUE;
 }