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...mirror a bitmap?
Autor: Rainer Kümmerle
Homepage: http://www.thinklazy.de
[ Print tip ]  

Tip Rating (4):  
     


procedure flip_horizontal(Quelle, Ziel: TBitMap);
begin
  
Ziel.Assign(nil);
  Ziel.Width  := Quelle.Width;
  Ziel.Height := Quelle.Height;
  StretchBlt(Ziel.Canvas.Handle, 0, 0, Ziel.Width, Ziel.Height, Quelle.Canvas.Handle,
    0, Quelle.Height, Quelle.Width, Quelle.Height, srccopy);
end;

procedure flip_vertikal(Quelle, Ziel: TBitMap);
begin
  
Ziel.Assign(nil);
  Ziel.Width  := Quelle.Width;
  Ziel.Height := Quelle.Height;
  StretchBlt(Ziel.Canvas.Handle, 0, 0, Ziel.Width, Ziel.Height, Quelle.Canvas.Handle,
    Quelle.Width, 0, Quelle.Width, Quelle.Height, srccopy);
end;

procedure TForm1.Button1Click(Sender: TObject);
var
  
temp: TBitMap;
begin
  
temp := TBitMap.Create;
  try
    
temp.Assign(Image1.Picture.BitMap);
    flip_vertikal(Temp, Image1.Picture.Bitmap);
  finally
    
Temp.Free;
  end;
end;


 

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