PerformSound.h

/*
  $Id: PerformSound.h 135 1999-11-17 17:57:13Z leigh $
  Description:
    This is basically a bare-bones duplicate of NeXT/Apples' performsound module
    functionality. Compilable with VC++ 6.0 and typically for interface with 
    Objective C routines, in particular, the SndKit.

    Only C functions are exported to avoid different C++ name mangling between VC++ and gcc

  Original Author: Leigh Smith <leigh@tomandandy.com>

  Copyright (C) 1999 Permission is granted to use this code for commercial and
  non-commercial purposes so long as this copyright statement (noting the author) is
  preserved.
*/
/*
  $Log$
  Revision 1.1  1999/11/17 17:57:14  leigh
  Initial revision

  Revision 1.2  1999/07/21 19:19:42  leigh
  Single Sound playback working
*/

// The following ifdef block is the standard way of creating macros which make exporting 
// from a DLL simpler. All files within this DLL are compiled with the PERFORMMIDI_EXPORTS
// symbol defined on the command line. this symbol should not be defined on any project
// that uses this DLL. This way any other project whose source files include this file see 
// PERFORMMIDI_API functions as being imported from a DLL, wheras this DLL sees symbols
// defined with this macro as being exported.
#ifdef MKPERFORMSNDMIDI_EXPORTS
#define PERFORM_API __declspec(dllexport)
#else
#define PERFORM_API __declspec(dllimport)
#endif

#include "soundstruct.h"

#ifdef __cplusplus
extern "C" {
#endif 

typedef int (*SNDNotificationFun)(SNDSoundStruct *s, int tag, int err);

#define SND_NULL_FUN ((SNDNotificationFun)0)

PERFORM_API BOOL SNDInit(BOOL guessTheDevice);

// retrieve a list of available driver descriptions
PERFORM_API char **SNDGetAvailableDriverNames(void);

// assign currently active driver
PERFORM_API BOOL SNDSetDriverIndex(unsigned int selectedIndex);

// return the index into driverList currently selected.
PERFORM_API unsigned int SNDGetAssignedDriverIndex(void);

PERFORM_API void SNDGetVolume(float *left, float * right);

PERFORM_API void SNDSetVolume(float left, float right);

PERFORM_API BOOL SNDIsMuted(void);

PERFORM_API void SNDSetMute(BOOL aFlag);

PERFORM_API int SNDStartPlaying(SNDSoundStruct *soundStruct, int tag, int priority,  int preempt, 
  SNDNotificationFun beginFun, SNDNotificationFun endFun);

PERFORM_API int SNDStartRecording(SNDSoundStruct *soundStruct, int tag, int priority, int preempt, 
  SNDNotificationFun beginRecFun, SNDNotificationFun endRecFun);
 
PERFORM_API int SNDSamplesProcessed(int tag);

PERFORM_API void SNDStop(int tag);

PERFORM_API void SNDPause(int tag);

PERFORM_API void SNDResume(int tag);

PERFORM_API int SNDUnreserve(int dunno);

PERFORM_API void SNDTerminate(void);

#ifdef __cplusplus
}
#endif

---