🚀 go-pugleaf

"Vladimir Stefanovic" <antivari@po.sbb.co.yu> wrote in message
news:427748eb@newsgroups.borland.com...

>    HWND hAppWnd;

You should always initialize your variables, especially when used globally:

    HWND hAppWnd = NULL;;

>    ghhookKB = SetWindowsHookEx( WH_KEYBOARD, (HOOKPROC)CheckKey, ghInst,
NULL)

You did not specify whether the HHOOK was in shared memory or not.  It must
be.  Otherwise, the hook will only work in your own application and not in
others.  When you place your icon in the System Tray and hide your window,
your window won't be focused anymore, and won't be the window receiving
keyboard input.  If you do not set up your hook properly to begin with, then
you will not be hooking the keyboard input of other applications properly.

>    // Send key information to the main window
>    SendMessage( hAppWnd, WM_KEYHOOK, 0, lParam );

Check the HWND for NULL before calling SendMessage():

    if( hAppWnd )
        SendMessage( hAppWnd, WM_KEYHOOK, 0, lParam );


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