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Performs an AlphaBlend operation assuming a white background.
Source position: lazcanvas.pas line 128
public procedure TLazCanvas.AlphaBlendIgnoringDestPixels( |
ASource: TLazCanvas; |
const ADestX: Integer; |
const ADestY: Integer; |
const ASourceX: Integer; |
const ASourceY: Integer; |
const ASourceWidth: Integer; |
const ASourceHeight: Integer |
); |
This is a safer version for use where the destination pixels may not be consistent or valid. It will draw as if the target area contained opaque white pixels.
lazarus-ccr.sourceforge.net |