Copies rectangular part of SrcImage to DstImage.
public procedure CopyTo(SrcX: LongInt;
SrcY: LongInt;
Width: LongInt;
Height: LongInt;
DstImage: TBaseImage;
DstX: LongInt;
DstY: LongInt);No blending is performed - alpha is simply copied to destination image. Operates also with negative X and Y coordinates. Note that copying is fastest for images in the same data format (and slowest for images in special formats).