Rotate an image by 90º

You have to create two images first. I'm sure anyone could convert this code to use just on image by using a TBitmap.

Procedure TurnImage(Src, Dst: TImage);
var x,y: integer;
begin
  Dst.Width:= Src.Height; Dst.Height:= Src.Width;
  For x:= 0 to Src.Width-1 do begin
    For y:= 0 to Src.Height-1 do begin
      Dst.Canvas.Pixels[(Src.Height-1)-y,x]:= Src.Canvas.Pixels[x,y];
    end;
  end;
end;