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... invert a 32 bit Bitmap?
Autor: Finn-Ole P.
[ Print tip ]  

Tip Rating (13):  
     


procedure invertiere32Bit(Bitmap: TBitmap);
var 
  
i, j: Integer;
  P: PDWord;
begin
  
p := Bitmap.Scanline[Bitmap.Height - 1];
  for j := 1 to Bitmap.Height * Bitmap.Width do
  begin
    
p^ := not p^;
    Inc(p);
  end;
  Bitmap.Assign(bitmap);
end;


 

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