Windows - tecla de atalho de sistema

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

 hotkey1, hotkey2: Integer;

procedure WMHotKey(var Msg : TWMHotKey); message WM_HOTKEY;

public

end;

var

Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.WMHotKey (var Msg : TWMHotKey);

begin

 if msg.HotKey = hotkey1 then ShowMessage('Ctrl + A pressed');

 if msg.HotKey = hotkey2 then ShowMessage('Ctrl + B pressed');

end;

procedure TForm1.FormCreate(Sender: TObject);

const

 MOD_CONTROL = 2;

 VK_A = 65;

 VK_B = 66;

begin

 // MOD_WIN, MOD_CONTROL, MOD_SHIFT, MOD_ALT

 hotkey1 := GlobalAddAtom('Hotkey1');

 RegisterHotKey(handle, hotkey1, MOD_CONTROL,VK_A);

 hotkey2 := GlobalAddAtom('Hotkey2');

 RegisterHotKey(handle, hotkey2, MOD_CONTROL,VK_B);

end;

procedure TForm1.FormDestroy(Sender: TObject);

begin

 UnRegisterHotKey(handle, hotkey1);

 UnRegisterHotKey(handle, hotkey2);

end;

end.