Re: Several ways to define 2 system-wide hotkeys, without to install keyboard-hook..

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#8038

From: Remy Lebeau (TeamB)
Date: Sat, 20 Nov 2004 08:43

36 lines
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"Oren Halvani" <Spam@Me-Please.com> wrote in message
news:419e831e$1@newsgroups.borland.com...

> how can i do that exactly Remy..?

You are going in the wrong direction.  You are checking the children windows
when you should be checking the parent windows instead.  Use GetWindow()
instead of EnumChildWindows(), ie:

    if( chkTaskbar->Checked )
    {
        HWND hTheWndToCheck;
        do
        {
            hTheWndToCheck = hwnd;
            hwnd = GetWindow(hwnd, GW_OWNER);
        }
        while( hwnd != NULL );

        if( IsWindowVisible(hTheWndToCheck) )
        {
            GetWindowText(hTheWndToCheck, Count, 256);
            AnsiString str = Count; if(str.IsEmpty()) return true;
            lstAktiveFenster->Items->Add(AnsiString(str));
        }
    }

> whats wrong here ? this gives me an AV...

Your callback function is expecting the lParam to be valid a TfrmTrashHate*
pointer, but you passed in an uninitialized lParam to EnumChildWindows()
instead.


Gambit

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From: "Remy Lebeau \(TeamB\)" <no.spam@no.spam.com>
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Subject: Re: Several ways to define 2 system-wide hotkeys, without to install keyboard-hook..
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