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From: fri0@tank.uchicago.edu (Christian E. Fritze)
Newsgroups: comp.sys.mac.programmer
Subject: SndNewChannel crashes my program!
Keywords: c, Sound, snd, code
Message-ID: <7605@tank.uchicago.edu>
Date: 13 Feb 90 02:05:10 GMT
Distribution: usa
Organization: University of Chicago
Lines: 38


Dear Netters!

I'm a beginning Mac programmer trying to use the sound manager routines to play
some sampled sound.  Why does the following code (an excerpt from my THINK C
4.0 program) break my Mac at the indicated function call?  Odd address, says
the debugger; sound doesn't play.  IMV says that passing a NIL pointer to
SndNewChannel tells SndNewChannel to allocate a channel for you and return it. 
In fact, my code is almost identical to a Pascal sample I found on GEnie. 
What's going on here?
=========================================================================

#include <SoundMgr.h>
#define NULL	0L

main()

{

SndChannelPtr	soundPtr;
Handle			soundHndl;
OsErr			Check;
	
soundHndl = GetResource('snd ',16658);

	/*This call does it... */
Check=SndNewChannel(&soundPtr,sampledSynth,initSRate22k,NULL);

SndPlay(&soundPtr,soundHndl,TRUE);
SndDisposeChannel(&soundPtr,FALSE);
DisposPtr(soundPtr);
DisposHandle(soundHndl);
	
}

Thanks for any help.  Hope this isn't a really STUPID question.

(Running SE, 4MB, Sys 6.0.2)