注册系统级热键

unit Unit1;

interface

uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs;

type
TForm1 = class(TForm)
procedure FormCreate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
private
procedure WMHotKey(var Msg: TWMHotKey); message WM_HOTKEY;
{ Private declarations }
public
{ Public declarations }
end;

var
Form1: TForm1;

implementation

{$R *.dfm}

var
HotKeyId: array[0..12] of Integer; //热键数组, 这里准备定义 13 个热键

procedure TForm1.FormCreate(Sender: TObject);
var
i: Integer;
begin
//注册热键
for i := Low(HotKeyId) to High(HotKeyId) do
HotKeyId[i] := GlobalAddAtom(PChar(IntToStr(i))); //热键命名可随意
RegisterHotKey(Handle,HotKeyId[0],0,VK_F2); //F2
RegisterHotKey(Handle,HotKeyId[1],0,VK_UP); //Up
RegisterHotKey(Handle,HotKeyId[2],0,VK_DOWN); //Down
RegisterHotKey(Handle,HotKeyId[3],0,VK_LEFT); //Left
RegisterHotKey(Handle,HotKeyId[4],0,VK_RIGHT); //Right
RegisterHotKey(Handle,HotKeyId[5],0,VK_PRIOR); //PageUp
RegisterHotKey(Handle,HotKeyId[6],0,VK_NEXT); //PageDown
RegisterHotKey(Handle,HotKeyId[7],0,VK_OEM_PLUS); //+
RegisterHotKey(Handle,HotKeyId[8],0,VK_OEM_MINUS); //-
RegisterHotKey(Handle,HotKeyId[9],0,$31); //1
RegisterHotKey(Handle,HotKeyId[10],0,$41); //a
RegisterHotKey(Handle,HotKeyId[11],0,VK_RETURN); //Enter
RegisterHotKey(Handle,HotKeyId[12],MOD_CONTROL,VK_RETURN); //Ctrl+Enterend;

//热键procedure TForm1.WMHotKey(var Msg: TWMHotKey);
begin
if Msg.HotKey = HotKeyId[0] then ShowMessage('F2');
if (Msg.HotKey=HotKeyId[1]) then ShowMessage('Up');
if (Msg.HotKey=HotKeyId[2]) then ShowMessage('Down');
if (Msg.HotKey=HotKeyId[3]) then ShowMessage('Left');
if (Msg.HotKey=HotKeyId[4]) then ShowMessage('Right');
if Msg.HotKey = HotKeyId[5] then ShowMessage('PageUp');
if Msg.HotKey = HotKeyId[6] then ShowMessage('PageDown');
if Msg.HotKey = HotKeyId[7] then ShowMessage('+');
if Msg.HotKey = HotKeyId[8] then ShowMessage('-');
if Msg.HotKey = HotKeyId[9] then ShowMessage('1');
if Msg.HotKey = HotKeyId[10] then ShowMessage('a');
if Msg.HotKey = HotKeyId[11] then ShowMessage('Enter');
if Msg.HotKey = HotKeyId[12] then ShowMessage('Ctrl+Enter');
end;

procedure TForm1.FormDestroy(Sender: TObject);
var
i: Integer;
begin
//注销热键
for i := Low(HotKeyId) to High(HotKeyId) do
begin
UnRegisterHotKey(handle,HotKeyId[i]);
GlobalDeleteAtom(HotKeyId[i]);
end;
end;

end.
THE END
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