利用热键控制鼠标移动的一个程序

本程序可以使用热键来将鼠标移动到某一个指定的坐标。是一个定义热键的示例程序。

本程序的热键为小键盘的5，在编辑框内可以指定坐标。

unit MainUnit;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls, Mask;

type
  TForm1 = class(TForm)
　  btnSetHK: TButton;
　  btnExit: TButton;
　  GroupBox2: TGroupBox;
　  Label3: TLabel;
　  Label4: TLabel;
　  btnUnsetHK: TButton;
　  edYPos: TMaskEdit;
　  edXPos: TMaskEdit;
　  Memo: TMemo;
　  PRocedure btnExitClick(Sender: TObject);
　  procedure btnSetHKClick(Sender: TObject);
　  procedure btnUnsetHKClick(Sender: TObject);
　  procedure OnHotKey(var Message: TWMHOTKEY); message WM_HOTKEY;
　  procedure FormDestroy(Sender: TObject);
  public
　  { Public declarations }
  end;

var
  Form1: TForm1;

const
  idHotKey : Word = 0;

implementation

{$R *.DFM}

procedure TForm1.btnExitClick(Sender: TObject);
begin
 
  Close;
end;

procedure TForm1.btnSetHKClick(Sender: TObject);
begin
  if idHotKey<>0 then Exit;
  idHotKey := GlobalAddAtom('EmuMouse'); //给热键取得一个唯一的标识
  RegisterHotKey(Handle, idHotKey, 0, VK_NUMPAD5); //注册热键
end;

procedure TForm1.OnHotKey(var Message: TWMHOTKEY);
var
  Point: TPoint;
  X, Y: Word;
begin
  GetCursorPos(Point); //取回当前坐标

  try
　  X := StrToInt(edXPos.Text);
　  Y := StrToInt(edYPos.Text);
  except
　  ShowMessage('坐标输入不正确.');
　  Exit;
  end;

  try
　  Mouse_Event(MOUSEEVENTF_ABSOLUTE+MOUSEEVENTF_LEFTDOWN, Point.X, Point.Y, 0, GetMessageExtraInfo);

　  SetCursorPos(X, Y);

　  Mouse_Event(MOUSEEVENTF_ABSOLUTE+MOUSEEVENTF_LEFTUP, X, Y, 0, GetMessageExtraInfo);

  except
　  ShowMessage('Error');

  end;
end;

procedure TForm1.btnUnsetHKClick(Sender: TObject);
begin
  if idHotKey = 0 then Exit;
  UnRegisterHotKey(Handle, idHotKey); //注销热键
  DeleteAtom(idHotKey); //注销标识
  idHotKey := 0;
end;

procedure TForm1.FormDestroy(Sender: TObject);
begin
  btnUnsetHK.Click;
end;

end.

这是dfm文件

object Form1: TForm1
  Left = 296
  Top = 238
  AutoSize = True
  BorderStyle = bsDialog
  BorderWidth = 8
  Caption = '模拟鼠标拖动'
  ClientHeight = 265
  ClientWidth = 211
  Color = clBtnFace
  Font.Charset = GB2312_CHARSET
  Font.Color = clWindowText
  Font.Height = -12
  Font.Name = '新宋体'
  Font.Style = []
  OldCreateOrder = False
  OnDestroy = FormDestroy
  PixelsPerInch = 96
  TextHeight = 12
  object btnSetHK: TButton
　  Left = 136
　  Top = 8
　  Width = 75
　  Height = 25
　  Caption = '设置热键(&H)'
　  TabOrder = 0
　  OnClick = btnSetHKClick
  end
  object btnExit: TButton
　  Left = 136
　  Top = 72
　  Width = 75
　  Height = 25
　  Caption = '退出(&X)'
　  TabOrder = 2
　  OnClick = btnExitClick
  end
  object GroupBox2: TGroupBox
　  Left = 0
　  Top = 0
　  Width = 129
　  Height = 97
　  Caption = '目的坐标'
　  TabOrder = 3
　  object Label3: TLabel
　　  Left = 16
　　  Top = 29
　　  Width = 6
　　  Height = 12
　　  Caption = 'X'
　  end
　  object Label4: TLabel
　　  Left = 16
　　  Top = 61
　　  Width = 6
　　  Height = 12
　　  Caption = 'Y'
　  end
　  object edXPos: TMaskEdit
　　  Left = 32
　　  Top = 24
　　  Width = 73
　　  Height = 20
　　  EditMask = '0000;1;_'
　　  MaxLength = 4
　　  TabOrder = 0
　　  Text = '0000'
　  end
　  object edYPos: TMaskEdit
　　  Left = 32
　　  Top = 56
　　  Width = 73
　　  Height = 20
　　  EditMask = '0000;1;_'
　　  MaxLength = 4
　　  TabOrder = 1
　　  Text = '0000'
　  end
  end
  object btnUnsetHK: TButton
　  Left = 136
　  Top = 40
　  Width = 75
　  Height = 25
　  Caption = '取消热键(&U)'
　  TabOrder = 1
　  OnClick = btnUnsetHKClick
  end
  object Memo: TMemo
　  Left = 0
　  Top = 104
　  Width = 209
　  Height = 161
　  TabOrder = 4
  end
end