Delphi - 通过WinAPI GetCursorPos实现鼠标位置的实时显示

Posted 2022-09-10 jeremywucnblog

通过WinAPI GetCursorPos实现鼠标位置的实时显示

有时候我们需要将鼠标的位置实时抓取出来，可以通过如下方式实现。

添加一个Timer控件，执行间隔改为100ms，双击控件输入如下代码：

1 var
2   P: TPoint;
3 begin
4    GetCursorPos(P);
5    RzLabel_Point.Caption := Format(‘(%d,%d)‘, [P.X,P.Y]);
6 end;

在窗体Show事件中输入如下代码，调整下鼠标显示样式：

1 Screen.Cursor := crHandPoint;

最终效果：

 

 

单元代码如下：

 1 unit U_Operation;
 2 
 3 interface
 4 
 5 uses
 6   Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
 7   Dialogs, ExtCtrls, RzPanel, StdCtrls, RzLabel;
 8 
 9 type
10   TFrm_Operation = class(TForm)
11     RzGroupBox1: TRzGroupBox;
12     RzGroupBox2: TRzGroupBox;
13     Timer_Display: TTimer;
14     RzLabel1: TRzLabel;
15     RzLabel_Point: TRzLabel;
16     procedure Timer_DisplayTimer(Sender: TObject);
17     procedure FormCreate(Sender: TObject);
18   private
19      Private declarations 
20   public
21      Public declarations 
22   end;
23 
24 var
25   Frm_Operation: TFrm_Operation;
26 
27 implementation
28 
29 $R *.dfm
30 
31 procedure TFrm_Operation.Timer_DisplayTimer(Sender: TObject);
32 var
33   P: TPoint;
34 begin
35    GetCursorPos(P);
36    RzLabel_Point.Caption := Format(‘(%d,%d)‘, [P.X,P.Y]);
37 end;
38 
39 procedure TFrm_Operation.FormCreate(Sender: TObject);
40 begin
41    Screen.Cursor := crHandPoint;
42 end;
43 
44 end.