Path: utzoo!attcan!uunet!crdgw1!gecrdvm1!darwees
From: DARWEES@gecrdvm1.crd.ge.com
Newsgroups: comp.sys.mac.programmer
Subject: Async sound problems
Message-ID: <90227.093609DARWEES@GECRDVM1.BITNET>
Date: 15 Aug 90 13:36:09 GMT
References: <25815@cs.yale.edu>
Organization: General Electric Corporate Research & Development
Lines: 30

Well, I've read the sound Manager Notes/Supplement and I guess, maybe I just do
n't understand them.  I have a snd1 that I would like to play while the rest of
 my program goes about its business (asynchronously I think is the term).  I do
n't want anything special...no frills..just an asyc. sound.  I've tried opennin
g a new channel with a callback procedure:
sndnewchannel(mychan,0,initmono,@callback);

then I start the sound:
sndplay(mychan,mysndhdl,true);

the call back procedure is a one-line procedure that sets a flag to true so I k
now that I have to close the channel and I check that flag every time through m
y main event loop to see if I have to:
snddisposechannel(mychan,false);

In real life, I DO check all error return values and alert if any are non-zero.

The most frequent occurance goes like this:
The snd gets played the first time all of this gets called, but if I call it ag
ain, nothing happens although the program continues.  I am almost positive that
my callback routine is not being called, but I have no idea what my problem is.


Any help would be greatly appreciated,
Remember, all I really want is a method for async sounds.

Thanks,
-Mike Darweesh
darwees@gecrdvm1.bitnet
weesh@crd.ge.com