SndForEver.cp

/*
    File:       SndForEver.cp
 
    Contains:   This application demonstrates how to play a snd which has a loop in it.
 
                The resource which I am using for the 'snd ' is 128 and this resource has been 
                pre-parsed. I took out some of it so that I would be able to make the code for playing 
                the sound easier to follow.  The part of the header which I have taken out is the 
 
                format
                # of Synths
                Synth resource ID
                Init option
                # of commands
                the command
                its params
 
                The original un-cut resource is in resource 100.
 
                To use the snippet, just double click on it and when you are sick of listening to it, 
                just click the mouse button.  
 
    Written by:     
 
    Copyright:  Copyright © 1984-1999 by Apple Computer, Inc., All Rights Reserved.
 
                You may incorporate this Apple sample source code into your program(s) without
                restriction. This Apple sample source code has been provided "AS IS" and the
                responsibility for its operation is yours. You are not permitted to redistribute
                this Apple sample source code as "Apple sample source code" after having made
                changes. If you're going to re-distribute the source, we require that you make
                it clear in the source that the code was descended from Apple sample source
                code, but that you've made changes.
 
    Change History (most recent first):
                8/2/1999    Karl Groethe    Updated for Metrowerks Codewarror Pro 2.1
                
 
*/
#include    <Resources.h>
#include    <Sound.h>
#include    <Events.h>
#include    <Memory.h>
 
#define TRUE            0xFF
#define FALSE           0
 
main()
{
    Handle          SoundData;
    SndChannelPtr   chan;
    OSErr           err;
    SndCommand      mycmd;
    
    SoundData = GetResource ('snd ', 128);
    if (ResError() != noErr || SoundData == nil)
        Debugger();
    HLock (SoundData);
            
    mycmd.cmd = soundCmd;
    mycmd.param1 = 0;
    mycmd.param2 = (long) *SoundData;
    
    chan = nil;
    err = SndNewChannel (&chan, sampledSynth, 0, nil);
    if (err != noErr)
        Debugger();
    
    err = SndDoImmediate (chan, &mycmd);
    if (err != noErr)
        Debugger();
 
    mycmd.cmd = freqCmd;
    mycmd.param1 = 0;
    mycmd.param2 = 60;
    
    err = SndDoCommand (chan, &mycmd, FALSE);
    if (err != noErr)
        Debugger();
 
    do {
        /*mycmd.cmd = noteCmd;
        mycmd.param1 = 0x1000;
        mycmd.param2 = 60;
    
        err = SndDoCommand (chan, &mycmd, FALSE);
        if (err != noErr)
            Debugger();*/
        
        } while (!StillDown());
        
    mycmd.cmd = quietCmd;
    mycmd.param1 = 0;
    mycmd.param2 = 0;
    
    err = SndDoImmediate (chan, &mycmd);
    if (err != noErr)
        Debugger();
 
    err = SndDisposeChannel (chan,FALSE);
    if (err != noErr)
        Debugger();
        
    HUnlock (SoundData);
}