When cropsel(true) is used, the bitmap width and height do not change. still has the same values as before the crop. Can that be changed ? if false is used, then everything is fine.
What are you looking to do? CropSel(True) only crops in the alpha channel, i.e. the image is still all there, just marked transparent. This does not change the size of the image. CropSel(False) is for that.