Re: Alt+Tab in fullscreen with no other apps running

Hi Oscar,

IIRC, we've always been doing something like

      if( (msg.message==WM_ACTIVATE && (LOWORD(msg.wParam)==WA_INACTIVE || HIWORD(msg.wParam)))
       ||  msg.message==WM_CANCELMODE
       ||  msg.message==WM_KILLFOCUS
       || (msg.message==WM_ACTIVATEAPP && !msg.wParam)) {

         if (bInFullScreen) {
           PostMessage(NULL, WM_SYSCOMMAND, SC_MINIMIZE, 0);
         }

That seems to work for us, YMMV.

HTH,
Alen

Oscar wrote:

> Hi,

> Does anyone know if there's something I have to do (or avoid doing) to make
> my game minimise when the player hits Alt+Tab whilst running in fullscreen
> with no other apps running?

> My game isn't minimising in pre-Vista versions of Windows, but other games
> seem to do so. Windows isn't sending me any WM_ACTIVATE or WM_ACTIVATEAPP
> messages. I am getting WM_NCACTIVATE and WM_CANCELMODE, and I'm passing
> these on to the default WndProc expecting it to handle any necessary 
> plumbing.

> With other apps running the Alt+Tab behaviour is correct in fullscreen, but
> in this case Windows is sending me a completely different sequence of 
> messages.

> Thanks in advance,

> Oscar Cooper
> Lead Programmer
> Frontier Developments Ltd



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