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| unit Unit1;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
Tabs, ExtCtrls;
type
TForm1 = class(TForm)
Image1: TImage;
procedure Image1MouseDown(Sender: TObject; Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
procedure Image1MouseMove(Sender: TObject; Shift: TShiftState; X,
Y: Integer);
procedure Image1MouseUp(Sender: TObject; Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
procedure FormCreate(Sender: TObject);
private
{ Private-Deklarationen }
public
{ Public-Deklarationen }
end;
var
Form1: TForm1;
implementation
{$R *.DFM}
var
x1, y1 : integer;
procedure TForm1.Image1MouseDown(Sender: TObject; Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
begin
if button = mbLeft then
begin
x1 := x;
y1 := y;
end;
end;
procedure TForm1.Image1MouseMove(Sender: TObject; Shift: TShiftState; X,
Y: Integer);
begin
image1.Refresh;
if shift = [ssLeft] then
begin
canvas.Brush.Style := bsclear;
canvas.Rectangle(x,y,x1,y1);
end;
end;
procedure TForm1.Image1MouseUp(Sender: TObject; Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
var
von_image, zu_image: TRect;
begin
if button = mbLeft then
begin
von_image := Rect(x,y,x1,y1);
zu_image := Rect(image1.Width+x,20+y,x1,y1);
Form1.Canvas.CopyRect(zu_image,form1.canvas,von_image);
end;
end;
procedure TForm1.FormCreate(Sender: TObject);
begin
form1.DoubleBuffered := true;
end;
end. |
Hallo,
