[wdmaudiodev] Re: Debugging an APO
- From: Tim Roberts <timr@xxxxxxxxx>
- To: wdmaudiodev@xxxxxxxxxxxxx
- Date: Fri, 06 Jun 2008 16:44:30 -0700
Tim Roberts wrote:
I'm just digging in to the creation of a GFX APO, and I'm looking for
a few debugging tips.
I don't seem to see my OutputDebugString output in dbgview when my DLL
is loaded into the audio engine service. I do see the messages when
it gets loaded by Control Panel, but that's not the interesting case.
How can I insert a new version while I'm debugging? Even if I disable
the Windows Audio and Windows Audio Endpoint Builder services and
disable my HDAUDIO device, my APO DLL remains loaded in one of the
service host processes, and I can't copy a new version into place
while it is loaded.
Any debug hints from folks who have been in the trenches would be
appreciated.
Well, for what it's worth, I can get the debug messages if I attach a
debugger to the audiodg.exe process itself. I still don't understand
why the messages don't appear in dbgview.
And the issue about not being able to update the DLL seems to have been
a transient thing. As long as I stop the two services, I can replace
the DLL just fine.
--
Tim Roberts, timr@xxxxxxxxx
Providenza & Boekelheide, Inc.
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