procedure BlockTransferX(
Dst: TCustomBitmap32;
DstX: TFixed;
DstY: TFixed;
Src: TCustomBitmap32;
SrcRect: TRect;
CombineOp: TDrawMode;
CombineCallBack: TPixelCombineEvent
= nil);
BlockTransferX is an extended version of BlockTransfer that allows a destination coordinate (DstX, DstY) in fixed-point coordinates. This means that the source bitmap is not copied directly but rather transposed a fractional distance before it is copied. In order to still retain reasonable performance, linear interpolation is used for the fractional displacement.
See BlockTransfer for a detailed description.