Main.TouchImageView1.SetBitmap(bmp)
Main.SourceImageRect.Initialize(0, 0, bmp.Width,bmp.Height)
Main.TouchImageViewRect.Initialize(0, 0, Main.TouchImageView1.Width, Main.TouchImageView1.Height)
Main.TouchImageView1.ScaleSrcRectToDestRect(Main.SourceImageRect, Main.TouchImageViewRect, "CENTER")