Re: OnLButtonDown

From:

"Scott McPhillips [MVP]" <org-dot-mvps-at-scottmcp>

Newsgroups:

microsoft.public.vc.mfc

Date:

Sat, 20 May 2006 22:10:44 -0400

Message-ID:

<##SngvHfGHA.1276@TK2MSFTNGP03.phx.gbl>

Steve Russell wrote:

I am noticing that if I click on my app while it is playing audio, my
OnLButtonDown handling (such as test Beeps) accumulates and takes effect
after the audio has finished. Is this due to different priorities?

------------------
In my audio class, I decode Ogg Vorbis files to PCM data and then I play my
waveOut in a separate thread:

m_pAudioThread = AfxBeginThread(AudioCallback, this, 0, 0,
CREATE_SUSPENDED);

I experimented with THREAD_PRIORITY_BELOW_NORMAL, but that hung the program
up following some clicking reponses.

My OnLButtonDown code tests for various variables related to my graphics and
certain timing components, so this is actually a very critical issue for me.

Any further help would certainly be appreciated.

For some reason your main thread message pump is not executing while you
play audio. It should be easy to find out why. Simply break in to the
program with the debugger while audio is playing. Click on your main
thread in the stack window and code will be displayed. This will show
you where the main thread is stuck. Where is the main thread execution
point, and what did you do there, and why?

--
Scott McPhillips [VC++ MVP]