如何将鼠标锁定在一定的范围内呢？
请在Form中放置二个 Button, 然後分别为这两个按钮定义OnClick响应事件如下:
// 限制
procedure TForm1.Button1Click(Sender: TObject);
var
rtButton2: TRect;
begin

rtButton2 := Button2.BoundsRect;
MapWindowPoints(handle, 0, rtButton2, 2); // 座标换算
ClipCursor(@rtButton2); // 限制鼠标移动区域
end;
// 还原
procedure TForm1.Button2Click(Sender: TObject);
var
rtScreen: TRect;
begin
rtScreen := Rect(0, 0, Screen.Width, Screen.Height);
ClipCursor(@rtScreen);
end;