unit Unit1;

interface

uses

  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

  Dialogs, StdCtrls, HTTPApp;

type

  TForm1 = class(TForm)

    btn1: TButton;

    edt1: TEdit;

    edt2: TEdit;

    procedure btn1Click(Sender: TObject);

    procedure FormCreate(Sender: TObject);

    procedure HotKeyDown(var Msg: Tmessage); message WM_HOTKEY;   //声明

    procedure FormDestroy(Sender: TObject);

  private

    { Private declarations }

  public

    { Public declarations }

  end;

var

  Form1: TForm1;

  HotKeyId_ALT_F9,HotKeyId_F9: Integer;   //声明一个全局变量

implementation

{$R *.dfm}

procedure TForm1.btn1Click(Sender: TObject);

var

  lv_sMsg: string;

begin

  lv_sMsg := Trim(edt1.Text);

  edt2.Text := HttpEncode(UTF8Encode(lv_sMsg));

end;

procedure TForm1.FormCreate(Sender: TObject);

begin

  //注： HotKeyId的合法取之范围是0x0000到0xBFFF之间， GlobalAddAtom函数得到的值

  //在0xC000到0xFFFF之间，所以减掉0xC000来满足调用要求。

  HotKeyId_ALT_F9 := GlobalAddAtom('HotKeyId_ALT_F9') - $C000;   //取得唯一标识ID

  RegisterHotKey(Handle, HotKeyId_ALT_F9, MOD_ALT, VK_F9);       //注册ALT+F9热键

  HotKeyId_F9 := GlobalAddAtom('HotKeyId_F9') - $C000;   //取得唯一标识ID

  RegisterHotKey(Handle, HotKeyId_F9, 0, VK_F9);         //注册F9热键

end;

procedure TForm1.HotKeyDown(var Msg: Tmessage);

begin

  if (Msg.LparamLo = MOD_ALT) AND (Msg.LParamHi = VK_F9) then // 假设热键为 ALT+F9

  begin

     //事件

     ShowMessage('按压ALT+F9');

  end;

  if (Msg.LparamLo = 0) AND (Msg.LParamHi = VK_F9) then // 假设热键为 ALT+F9

  begin

     //事件

     ShowMessage('按压F9');

  end;

end;

procedure TForm1.FormDestroy(Sender: TObject);

var

  m,n: integer;

  s1,s2: string;

begin

  UnRegisterHotKey(handle, HotKeyId_ALT_F9);    //注销HotKey, 释放资源。

  UnRegisterHotKey(handle, HotKeyId_F9);

  m := GlobalFindAtom('HotKeyId_ALT_9');

  s1 := IntToStr(m);

  n := GlobalDeleteAtom(8);

  s2 := IntToStr(n);

end;

end.