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图1 添加组件后的窗体 |
procedure TForm1.Image1MouseMove(Sender: TObject; Shift: TShiftState; X, Y: Integer); begin StretchBlt(Image2.Canvas.Handle,0,0,Image2.Width,Image2.Height, Image1.Canvas.Handle, X-20,Y-20,40,40,SRCCOPY); Image2.Refresh; Screen.Cursors[1]:=LoadCursorFromFile(’MAGNIFY.CUR’); Self.Cursor:=1; end; |
unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, ExtCtrls, StdCtrls; type TForm1 = class(TForm) Image1: TImage; Image2: TImage; procedure Image1MouseMove(Sender: TObject; Shift: TShiftState; X,Y: Integer); procedure FormMouseMove(Sender: TObject; Shift: TShiftState; X,Y: Integer); private { Private declarations } public { Public declarations } end; var Form1: TForm1; implementation {$R *.dfm} procedure TForm1.Image1MouseMove(Sender:TObject;Shift:TShiftState;X,Y: Integer); begin StretchBlt(Image2.Canvas.Handle,0,0,Image2.Width,Image2.Height, Image1.Canvas.Handle, X-20,Y-20,40,40,SRCCOPY); Image2.Refresh; Screen.Cursors[1]:=LoadCursorFromFile(’MAGNIFY.CUR’); Self.Cursor:=1; end; procedure TForm1.FormMouseMove(Sender: TObject; Shift: TShiftState; X,Y: Integer); begin Screen.Cursors[1]:=crDefault; Self.Cursor:=1; end; end. |
图2 程序运行结果 |
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