How globally to intercept key press or key patterns?

Borland C ++ Builder FAQ
	The content	The last update: 12/12/2008

The author: OlegGG
The initial link: - - -

Variant #1 - RegisterHotKey:
For an example, we intercept combination ALT + CONTROL + ENTER.

At first we register hot key:

bool RHKret = RegisterHotKey (Form1-> Handle,        //Handle windows which to send messages WM_HOTKEY 
                             0x00F,                //the CONDITIONAL identifier of a hot key 
                             MOD_ALT + MOD_CONTROL,//modifiers 
                             VK_RETURN             //the key code 
                             );
if (RHKret)//if all о'кей 
        { 
        ShowMessage ("Hot Key Registred"); 
        }

Then we allocate on Form1 TApplicationEvents and in OnMessage we write:

if (Msg.message == WM_HOTKEY)//our message 
        { 
        if (Msg.wParam == 0x00F)//our identifier 
                { 
                ShowMessage ("www.sources.ru");//it is loudly shouted "уря" 
                }
        }

When the hot key is not necessary any more, we disconnect it:

UnregisterHotKey (Form1-> Handle,//Handle windows 
                 0x00F         //our identifier of a hot key 
                 );

Variant #2 - хуки:
http://www.xakep.ru/post/13750/default.asp