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SetWindowsHookEx - focus on a particular application

I'm using the setwindowshookex function with the WH_CBT parameter. The function calles a DLL that I created to determine several things, including if a window has been created. How would I specify this application to work with only one specific application? For instance, how would I make this program work and catch messages from only microsoft word?

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jkr

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jamoville

ASKER

Were would you use this function. Would it be in the getwindowshookex function of my application, or in the DLL. I would think it would be in the hookex function to get the threadid.

jkr

Usually you'd call this from within the hook procedure to filter the messages. Example (though it is an excerpt from an WH_GETMESSAGE hook):
LRESULT CALLBACK HookProc ( int nCode, // hook code
WPARAM wParam, // removal flag
LPARAM lParam // address of structure with message
)
{
PMSG pmsg = ( PMSG) lParam;

if ( 0 > nCode
|| PM_NOREMOVE == wParam
|| !strstr ( GetCommandLine (), "winword.exe") // bail out if not Word...
)
{
return ( CallNextHookEx ( g_hhk,
nCode,
wParam,
lParam
)
);
}

//....
}