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  ±è¿µ´ë(2003-03-05 21:09:19, Hit : 5145, Vote : 1268
 ¸¶¿ì½ºÀÇ ¸ð¾ç ¹Ù²Ù°í À̵¿¹üÀ§ Á¦ÇÑÇϱâ

// ¾Æ·¡ ¿¹Á¦´Â Image ¿µ¿ª¿¡¼­ drawingÀ» ½ÃÀÛÇÒ °æ¿ì ¸¶¿ì½º ¸ð¾çÀ»
// crCross ·Î ¹Ù²Ù°í ¸¶¿ì½ºÀÇ À̵¿¹üÀ§¸¦ Á¦ÇÑÇÑ´ÙÀ½ drawingÀÌ ³¡³ª¸é
// ¿ø·¡ ¸¶¿ì½º ¸ð¾çÀ¸·Î ¹Ù²Ù¸é¼­ À̵¿¹üÀ§µµ ÇØÁ¦ÇÕ´Ï´Ù

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  ExtCtrls;

type
  TForm1 = class(TForm)
    Image1: TImage;
    procedure Image1MouseDown(Sender: TObject; Button: TMouseButton;
      Shift: TShiftState; X, Y: Integer);
    procedure Image1MouseUp(Sender: TObject; Button: TMouseButton;
      Shift: TShiftState; X, Y: Integer);
    procedure Image1MouseMove(Sender: TObject; Shift: TShiftState; X,
      Y: Integer);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation
{$R *.DFM}

procedure RestrictCursorToDrawingArea(const Image: TImage);
var
  CursorClipArea: TRect;
begin
  CursorClipArea := Bounds(Image.ClientOrigin.X,
                           Image.ClientOrigin.Y,
                           Image.Width, Image.Height);
  // ClipCursor API´Â ÁÖ¾îÁø È­¸é¿µ¿ª(R)À¸·Î¸¸ ¸¶¿ì½ºÀÇ À̵¿À» Á¦ÇÑÇÕ´Ï´Ù
  Windows.ClipCursor(@CursorClipArea);
end;


procedure RemoveCursorRestrictions;
begin
  // ¸¶¿ì½º À̵¿¿µ¿ªÀÇ Á¦ÇÑÀ» ÇØÁ¦
  Windows.ClipCursor(NIL);
end;

procedure TForm1.Image1MouseDown(Sender: TObject; Button: TMouseButton;
  Shift: TShiftState; X, Y: Integer);
begin
  Screen.Cursor := crCross;
  RestrictCursorToDrawingArea(Image1);
end;

procedure TForm1.Image1MouseUp(Sender: TObject; Button: TMouseButton;
  Shift: TShiftState; X, Y: Integer);
begin
  Screen.Cursor := crDefault;
  RemoveCursorRestrictions;
end;

procedure TForm1.Image1MouseMove(Sender: TObject; Shift: TShiftState; X,
  Y: Integer);
begin
  if Screen.Cursor = crCross then
  begin
    Image1.Canvas.Pen.Style := psDot;
    Image1.Canvas.Pixels[X, Y] := clBlack;
  end;
end;

end.






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