According to docs http://msdn.microsoft.com/en-us/library/dd162589(v=vs.85),
cxDest/cyDest are "Logical width/height of the destination rectangle.",
so there should be no +1 as there would be if they were the top-bottom corner.

Change-Id: Iefa6db8e6131abe785b7878d97df1c891b73011c