SetWindowsHookEx - CBTProc

From:

"Steven" <sedison@protronix_nospam_.com>

Newsgroups:

microsoft.public.vc.language

Date:

Mon, 16 Jun 2008 13:03:10 -0400

Message-ID:

<eKtgBL9zIHA.3504@TK2MSFTNGP06.phx.gbl>

I've been "playing" with SetWindowsHookEx for the past
several days trying to accomplish something. I'm not sure
what I'm doing wrong, but what I would like to do is have
a window that hosts an app's main window as a child of
my window. I was going to do this by trapping
HCBT_CREATWND using SetWindowsHookEx and
change CREATESTRUCT::hwndParent to my window.

Does this sound plausible? I'd like to run Powerpoint
in my child window instead of full screen. I've got all
the powerpoint work completed, but now I want it to
take up a section of my dialog rather than full screen.
There's an ActiveX out there that does this, but it's
$1000 (claims to be $99 on some websites but when
you register it, it's $1000). I've already got all the work
done with powerpoint, seems a shame to pay that much
just to make it a child of my window.

Here's what I've got so far:

//LoadLibrary and GetProcAddress on my DLL then...

//this called within a function called SetHook() in my dll
//by my exe
hHook = SetWindowsHookEx(WH_CBT, CBTProc,
    GetModuleHandle(NULL) , GetCurrentThreadId());

//from exe
//Create app here

//called from within a dll func named Unhook() in my dll
//by exe
if(ghHook != NULL)
    UnhookWindowsHookEx(ghHook);

//Then in my dll
LRESULT CALLBACK CBTProc(int nCode,
    WPARAM wParam, LPARAM lParam)
{
    if(nCode == HCBT_CREATEWND)
    {
        LPCBT_CREATEWND pCW =
            (LPCBT_CREATEWND)lParam;
        LPCREATESTRUCT pCS =
            (LPCREATESTRUCT)pCW->lpcs;
        //see if its the right class and name, if so
        //change the parent
    }
    return CallNextHookEx(hHook, nCode, wParam, lParam);
}

Thanks for any help, I've been spinning my wheels on this for
awhile now.

Steven