RE: [GD-Windows] Hijacking application

[Mike B. <mi...@wi...>]

Or you could do some binary instrumentation and hook in that way (no pun
intended ;))

http://research.microsoft.com/sn/detours/

"Detours is a library for instrumenting arbitrary Win32 functions on x86
machines. Detours intercepts Win32 functions by re-writing target
function images."

HTH, Mike

-----Original Message-----
From: gam...@li...
[mailto:gam...@li...] On Behalf Of
Brian Hook
Sent: Monday, August 18, 2003 6:51 PM
To: gam...@li...
Subject: [GD-Windows] Hijacking application


I have a feeling this can't be done, but I figured I'd ask the list=20
anyways just in case.

Say I want to write a plug-in for random application XYZ.  XYZ,=20
however, may not have a plug-in API or it may be broken.  Use Notepad=20
as an example.

If I wanted to add a plug-in, it seems like it would be pretty much=20
impossible unless my plug-in didn't require any of the application's=20
other data. =20

I swore there were a few plug-ins I've seen that have forced their way=20
into an application, but I can't think of what they might be now.  The=20
obvious ones are like Visual Assist, Max plug-ins, Maya plug-ins,=20
Photoshop plug-ins, VS plug-ins, etc. but those all have registered=20
APIs.  I've seen screenshots of people that have retrofitted a new=20
menu into Notepad just to prove it can be done, but I'm not sure what=20
the point of that is.

The typical way you do this is a pretty convoluted process involving=20
subclassing and message hooks, but even then you can only trap new=20
menu items and maybe a couple of key messages like WM_DESTROY.  You=20
obviously can't grab application data and do anything meaningful with=20
it.

Brian




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