Delphi RegisterHotKey 设置系统热键

Symbolic constant name	Value (hexadecimal)	Keyboard (or mouse) equivalent
VK_LBUTTON	01	Left mouse button
VK_RBUTTON	02	Right mouse button
VK_CANCEL	03	Control-break processing
VK_MBUTTON	04	Middle mouse button (three-button mouse)
VK_BACK	08	BACKSPACE key
VK_TAB	09	TAB key
VK_CLEAR	0C	CLEAR key
VK_RETURN	0D	ENTER key
VK_SHIFT	10	SHIFT key
VK_CONTROL	11	CTRL key
VK_MENU	12	ALT key
VK_PAUSE	13	PAUSE key
VK_CAPITAL	14	CAPS LOCK key
VK_ESCAPE	1B	ESC key
VK_SPACE	20	SPACEBAR
VK_PRIOR	21	PAGE UP key
VK_NEXT	22	PAGE DOWN key
VK_END	23	END key
VK_HOME	24	HOME key
VK_LEFT	25	LEFT ARROW key
VK_UP	26	UP ARROW key
VK_RIGHT	27	RIGHT ARROW key
VK_DOWN	28	DOWN ARROW key
VK_SELECT	29	SELECT key
VK_PRINT	2A	PRINT key
VK_EXECUTE	2B	EXECUTE key
VK_SNAPSHOT	2C	PRINT SCREEN key
VK_INSERT	2D	INS key
VK_DELETE	2E	DEL key
VK_HELP	2F	HELP key
	30	0 key
	31	1 key
	32	2 key
	33	3 key
	34	4 key
	35	5 key
	36	6 key
	37	7 key
	38	8 key
	39	9 key
	41	A key
	42	B key
	43	C key
	44	D key
	45	E key
	46	F key
	47	G key
	48	H key
	49	I key
	4A	J key
	4B	K key
	4C	L key
	4D	M key
	4E	N key
	4F	O key
	50	P key
	51	Q key
	52	R key
	53	S key
	54	T key
	55	U key
	56	V key
	57	W key
	58	X key
	59	Y key
	5A	Z key
VK_NUMPAD0	60	Numeric keypad 0 key
VK_NUMPAD1	61	Numeric keypad 1 key
VK_NUMPAD2	62	Numeric keypad 2 key
VK_NUMPAD3	63	Numeric keypad 3 key
VK_NUMPAD4	64	Numeric keypad 4 key
VK_NUMPAD5	65	Numeric keypad 5 key
VK_NUMPAD6	66	Numeric keypad 6 key
VK_NUMPAD7	67	Numeric keypad 7 key
VK_NUMPAD8	68	Numeric keypad 8 key
VK_NUMPAD9	69	Numeric keypad 9 key
VK_SEPARATOR	6C	Separator key
VK_SUBTRACT	6D	Subtract key
VK_DECIMAL	6E	Decimal key
VK_DIVIDE	6F	Divide key
VK_F1	70	F1 key
VK_F2	71	F2 key
VK_F3	72	F3 key
VK_F4	73	F4 key
VK_F5	74	F5 key
VK_F6	75	F6 key
VK_F7	76	F7 key
VK_F8	77	F8 key
VK_F9	78	F9 key
VK_F10	79	F10 key
VK_F11	7A	F11 key
VK_F12	7B	F12 key
VK_F13	7C	F13 key
VK_F14	7D	F14 key
VK_F15	7E	F15 key
VK_F16	7F	F16 key
VK_F17	80H	F17 key
VK_F18	81H	F18 key
VK_F19	82H	F19 key
VK_F20	83H	F20 key
VK_F21	84H	F21 key
VK_F22	85H	F22 key
VK_F23	86H	F23 key
VK_F24	87H	F24 key
VK_NUMLOCK	90	NUM LOCK key
VK_SCROLL	91	SCROLL LOCK key
VK_LSHIFT	A0	Left SHIFT key
VK_RSHIFT	A1	Right SHIFT key
VK_LCONTROL	A2	Left CONTROL key
VK_RCONTROL	A3	Right CONTROL key
VK_LMENU	A4	Left MENU key
VK_RMENU	A5	Right MENU key
VK_PLAY	FA	Play key
VK_ZOOM	FB	Zoom key

//定义全局变量
var 
  QuitId, ShowMe: Integer;

  //热键响应函数
  procedure HotKeyDown(var Msg: Tmessage); message WM_HOTKEY;

  //注册热键
  QuitId := GlobalAddAtom('MyQuitId') - $C000;
  RegisterHotKey(Handle, QuitId, MOD_CONTROL, VK_F2);
 //注册热键
  ShowMe := GlobalAddAtom('MyShowMe') - $C000;
  RegisterHotKey(Handle, ShowMe, MOD_CONTROL, VK_F1);
  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。
  热键的辅助按键包括Mod_Ctrl、Mod_Alt、Mod_Shift,对于Windows兼容键盘还支持Windows键，即其键面上有Windows标志的那个键，其值为Mod_win。
  注：handle是一个特殊的变量，它表示当前窗口的句柄。
  这个函数你应该能句举一反三了吧。
  原理：
  一旦热键设置成功，在程序应用过程中如果有相应的键被按下，Windows系统都会给你的应用程序发送一个消息WM_HOTKEY，不管你的应用程序是否为当前活动的。其中WM_HOTKEY消息的格式为：
  idHotKey=(int)wParam;//该参数在设置系统级的热键有用,一般不予使用
  fuModifiers=(UINT)LOWORD(lParam);//热键的辅助按键
  uVirtKey=(UINT)HIWORD(lParam);//热键的键值

  //释放热键
  UnRegisterHotKey(handle, QuitId);
  UnRegisterHotKey(handle, ShowMe);

  procedure TfrmMain.HotKeyDown(var Msg: Tmessage);
  begin
    if (Msg.LparamLo = MOD_CONTROL) AND (Msg.LParamHi = VK_F2) then //退出
    begin
      Close;
    end;
    if (Msg.LparamLo = MOD_CONTROL) AND (Msg.LParamHi = VK_F1) then
    begin
      Close;
    end;
  end;