unit Unit1;

interface

uses

Windows, Messages, Forms, Dialogs, Classes, Controls, StdCtrls;

type

TForm1 = class(TForm)

Button1: TButton;

Button2: TButton;

procedure FormCreate(Sender: TObject);

procedure Button1Click(Sender: TObject);

procedure Button2Click(Sender: TObject);

procedure FormClose(Sender: TObject; var Action: TCloseAction);

private {热键标识ID} id: Integer; procedure WMHotKey(var Msg : TWMHotKey); message WM_HOTKEY; { Privat-Declarations}

public

{ Public-Declarations}

end; var Form1 :TForm1;

implementation

const

RSP_SIMPLE_SERVICE=1;

function RegisterServiceProcess (dwProcessID, dwType: DWord) : DWord; stdcall; external ’KERNEL32.DLL’; {$R *.DFM}

{捕获热键消息}

procedure

TForm1.WMHotKey (var Msg : TWMHotKey);

begin

if msg.HotKey = id then ShowMessage(’Ctrl+Alt+R键被按下!’); form1.Visible :=true;

end;

procedure TForm1.FormCreate(Sender: TObject);

Const {ALT、CTRL和R键的虚拟键值}

MOD_ALT = 1;

MOD_CONTROL = 2;

VK_R = 82;

begin

{首先判断程序是否已经运行}

if GlobalFindAtom(’MyHotkey’) = 0 then

begin

{注册全局热键Ctrl + Alt + R}

id:=GlobalAddAtom(’MyHotkey’);

RegisterHotKey(handle,id,MOD_CONTROL+MOD_Alt,VK_R);

end

else

halt;

end;

procedure TForm1.Button1Click(Sender: TObject);

begin

RegisterServiceProcess(GetCurrentProcessID,RSP_SIMPLE_SERVICE); form1.Hide;

end;

procedure TForm1.Button2Click(Sender: TObject);

begin

close;

end;

{退出时释放全局热键}

procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);

begin

UnRegisterHotKey(handle,id);

GlobalDeleteAtom(id);

end;