🚀 go-pugleaf

Your application can catch Alt+Tab with

RegisterHotKey( Handle, idAltTabKey, MOD_ALT, VK_TAB )  not

RegisterHotKey( Handle, idAltTabKey, MOD_ALT, VK_BACK )

under WM_HOTKEY you will have it with

UINT fuModifiers = (UINT) LOWORD(lParam);  // key-modifier flags
UINT uVirtKey    = (UINT) HIWORD(lParam);  // virtual-key code

if (fuModifiers == MOD_ALT && uVirtKey == VK_TAB)  // Alt+Tab


SystemParametersInfo(SPI_SCREENSAVERRUNNING...   Windows 95 only not XP !!

-- 
JF Jolin
[Montreal, Canada]


22 Oct 2004 16:46:44 +0200, Paolo Borlandi a �crit:

> No, I exactly mean the SPI_SCREENSAVERRUNNING parameter which can disable
> also CTRL+ALT+DEL and CTRL+ESC.
>
> I tested what you have explained but with no success. I have declared the
> Hotkey and then I tried to catch it by the WM_HOTKEY message in WndProc
> function:
>
>
> RegisterHotKey( Handle, idAltTabKey, MOD_ALT, VK_BACK );
>
> ...
>
> void __fastcall TFMain::WndProc(Messages::TMessage &Message)
> {
> switch ( Message.Msg )    {
> case WM_HOTKEY:
>
> ....
> ....
>
> break;
> default:
> TForm::WndProc(Message);
> break;
> }
> }
>
> ...
>
>
> Is there anything wrong?
>
> Thank YOU!
>
>
>
> "JF Jolin" <jfj@nospam.com> ha scritto nel messaggio
> news:opsf6p1crtz6rw7b@newsgroups.borland.com...
>> Le Wed, 20 Oct 2004 17:25:42 +0200, Paolo Borlandi 
>> <pborlandi@virgilio.it>
>> a �crit:
>>
>> > Hi All
>> >
>> > Is it possible to enable or disable ALT+TAB fast task switching under
>> > windows XP. I do it in Win98 by this function
>> >
>> > SystemParametersInfo( SPI_SCREENSAVERRUNNING,(WORD)!Enabled,&OldVal,0) 
>> ;
>> >
>> >
>> > THANK YOU VERY MUCH!!!
>> >
>> > Paolo from Italy
>> >
>> >
>> >
>>
>> You probably meant SPI_SETFASTTASKSWITCH (obsolete) instead of
>> SPI_SCREENSAVERRUNNING.
>>
>> With RegisterHotKey(hWnd, idAltTabKey, MOD_ALT, VK_TAB )
>> you can attach behavior of ALt+Tab to current application.
>>
>> Do not forget UnregisterHotKey when leaving.
>>
>>
>> -- JF Jolin
>> [Montreal, Canada]