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/////////////////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 1998 Active Voice Corporation. All Rights Reserved.
//
// Active Agent(r) and Unified Communications(tm) are trademarks of Active Voice Corporation.
//
// Other brand and product names used herein are trademarks of their respective owners.
//
// The entire program and user interface including the structure, sequence, selection,
// and arrangement of the dialog, the exclusively "yes" and "no" choices represented
// by "1" and "2," and each dialog message are protected by copyrights registered in
// the United States and by international treaties.
//
// Protected by one or more of the following United States patents: 5,070,526, 5,488,650,
// 5,434,906, 5,581,604, 5,533,102, 5,568,540, 5,625,676, 5,651,054.
//
// Active Voice Corporation
// Seattle, Washington
// USA
//
/////////////////////////////////////////////////////////////////////////////////////////
////
// wav.h - interface for wav functions in wav.c
////
#ifndef __WAV_H__
#define __WAV_H__
#ifdef _WIN32
#define MULTITHREAD 1
#endif
#include "winlocal.h"
#include "wavfmt.h"
#include "wavout.h"
#include "wavin.h"
#define WAV_VERSION 0x00000108
// <dwFlags> values in WavInit
//
#define WAV_TELTHUNK 0x00004000
#define WAV_NOTSMTHUNK 0x00008000
#define WAV_VOXADPCM 0x00000001
// <dwFlags> values in WavOpen
//
#define WAV_READ 0x00000000
#define WAV_WRITE 0x00000001
#define WAV_READWRITE 0x00000002
#define WAV_CREATE 0x00000004
#define WAV_NORIFF 0x00000008
#define WAV_MEMORY 0x00000010
#define WAV_RESOURCE 0x00000020
#define WAV_DENYNONE 0x00000040
#define WAV_DENYREAD 0x00000080
#define WAV_DENYWRITE 0x00000100
#define WAV_EXCLUSIVE 0x00000200
#define WAV_NOACM 0x00000400
#define WAV_DELETE 0x00000800
#define WAV_EXIST 0x00001000
#define WAV_GETTEMP 0x00002000
#define WAV_TELRFILE 0x00008000
#ifdef MULTITHREAD
#define WAV_MULTITHREAD 0x00010000
#define WAV_SINGLETHREAD 0x00020000
#define WAV_COINITIALIZE 0x00040000
#endif
// <dwFlags> values in WavPlay
//
#define WAV_PLAYASYNC 0x00000000
#define WAV_PLAYSYNC 0x00001000
#define WAV_AUTOSTOP 0x00002000
#define WAV_NOAUTOSTOP 0x00004000
#define WAV_AUTOCLOSE 0x00008000
// <dwFlags> values in WavRecord
//
#define WAV_RECORDASYNC 0x00000000
#define WAV_RECORDSYNC 0x00010000
// <dwFlags> values in WavPlaySound
//
#define WAV_ASYNC 0x00000000
#define WAV_SYNC 0x00100000
#define WAV_FILENAME 0x00200000
#define WAV_NODEFAULT 0x00400000
#define WAV_LOOP 0x00800000
#define WAV_NOSTOP 0x01000000
#define WAV_OPENRETRY 0x10000000
// control flags for WavSetSpeed and WavSupportsSpeed
//
#define WAVSPEED_NOPLAYBACKRATE 0x00000001
#define WAVSPEED_NOFORMATADJUST 0x00000002
#define WAVSPEED_NOTSM 0x00000004
#define WAVSPEED_NOACM 0x00000400
// return values from WavGetState
//
#define WAV_STOPPED 0x0001
#define WAV_PLAYING 0x0002
#define WAV_RECORDING 0x0004
#define WAV_STOPPING 0x0008
// <dwFlags> values in WavGetFormat and WavSetFormat
//
#define WAV_FORMATFILE 0x0001
#define WAV_FORMATPLAY 0x0002
#define WAV_FORMATRECORD 0x0004
#define WAV_FORMATALL (WAV_FORMATFILE | WAV_FORMATPLAY | WAV_FORMATRECORD)
// <dwFlags> values in WavSetVolume and WavSupportsVolume
//
#define WAVVOLUME_MIXER 0x0001
#ifdef TELTHUNK
// control flags for WavOpenEx
//
#define WOX_LOCAL 0x00000001
#define WOX_REMOTE 0x00000002
#define WOX_WAVFMT 0x00000010
#define WOX_VOXFMT 0x00000020
#define WOX_WAVDEV 0x00000100
#define WOX_TELDEV 0x00000200
#endif
// handle returned from WavInit
//
DECLARE_HANDLE32(HWAVINIT);
// handle returned from WavOpen // (NOT the same as Windows HWAVE)
//
DECLARE_HANDLE32(HWAV);
// prototype for <lpfnUserAbort> in WavCopy
//
typedef BOOL (CALLBACK* USERABORTPROC)(DWORD dwUser, int nPctComplete);
// prototype for <lpfnPlayStopped> in WavPlay
//
typedef BOOL (CALLBACK* PLAYSTOPPEDPROC)(HWAV hWav, HANDLE hUser, DWORD dwReserved);
// prototype for <lpfnRecordStopped> in WavRecord
//
typedef BOOL (CALLBACK* RECORDSTOPPEDPROC)(HWAV hWav, DWORD dwUser, DWORD dwReserved);
#ifdef __cplusplus
extern "C" {#endif
// WavInit - initialize wav engine
// <dwVersion> (i) must be WAV_VERSION
// <hInst> (i) instance handle of calling module
// <dwFlags> (i) control flags
#ifdef TELTHUNK
// WAV_TELTHUNK initialize telephone thunking layer
#endif
// WAV_NOACM do not use audio compression manager
// WAV_VOXADPCM load acm driver for Dialogic OKI ADPCM
// return handle (NULL if error)
//
HWAVINIT WINAPI WavInit(DWORD dwVersion, HINSTANCE hInst, DWORD dwFlags);
// WavTerm - shut down wav engine
// <hWavInit> (i) handle returned from WavInit
// return 0 if success
//
int WINAPI WavTerm(HWAVINIT hWavInit);
// WavOpen - open or create wav file
// <dwVersion> (i) must be WAV_VERSION
// <hInst> (i) instance handle of calling module
// <lpszFileName> (i) name of file to open or create
// <lpwfx> (i) wave format
// NULL use format from header or default
// <lpIOProc> (i) address of i/o procedure to use
// NULL use default i/o procedure
// <lpadwInfo> (i) data to pass to i/o procedure during open
// NULL no data to pass
// <dwFlags> (i) control flags
// WAV_READ open file for reading (default)
// WAV_WRITE open file for writing
// WAV_READWRITE open file for reading and writing
// WAV_DENYNONE allow other programs read and write access
// WAV_DENYREAD prevent other programs from read access
// WAV_DENYWRITE prevent other programs from write access
// WAV_EXCLUSIVE prevent other programs from read or write
// WAV_CREATE create new file or truncate existing file
// WAV_NORIFF file has no RIFF/WAV header
// WAV_MEMORY <lpszFileName> points to memory block
// WAV_RESOURCE <lpszFileName> points to wave resource
// WAV_NOACM do not use audio compression manager
// WAV_DELETE delete specified file, return TRUE if success
// WAV_EXIST return TRUE if specified file exists
// WAV_GETTEMP fill lpszFileName with temp name, return TRUE
// WAV_TELRFILE telephone will play audio from file on server
#ifdef MULTITHREAD
// WAV_MULTITHREAD support multiple threads (default)
// WAV_SINGLETHREAD do not support multiple threads
// WAV_COINITIALIZE call CoInitialize in all secondary threads
#endif
// return handle (NULL if error)
//
// NOTE: if WAV_CREATE or WAV_NORIFF are used in <dwFlags>, then the
// <lpwfx> parameter must be specified. If <lpwfx> is NULL, the
// current default format is assumed.
// WavSetFormat() can be used to set or override the defaults.
//
// NOTE: if WAV_RESOURCE is specified in <dwFlags>, then <lpszFileName>
// must point to a WAVE resource in the module specified by <hInst>.
// If the first character of the string is a pound sign (#), the remaining
// characters represent a decimal number that specifies the resource id.
//
// NOTE: if WAV_MEMORY is specified in <dwFlags>, then <lpszFileName>
// must be a pointer to a memory block obtained by calling MemAlloc().
//
// NOTE: if <lpIOProc> is not NULL, this i/o procedure will be called
// for opening, closing, reading, writing, and seeking the wav file.
// If <lpadwInfo> is not NULL, this array of three (3) DWORDs will be
// passed to the i/o procedure when the wav file is opened.
// See the Windows mmioOpen() and mmioInstallIOProc() function for details
// on these parameters. Also, the WAV_MEMORY and WAV_RESOURCE flags may
// only be used when <lpIOProc> is NULL.
//
HWAV WINAPI WavOpen(DWORD dwVersion, HINSTANCE hInst, LPCTSTR lpszFileName, LPWAVEFORMATEX lpwfx, LPMMIOPROC lpIOProc, DWORD FAR *lpadwInfo, DWORD dwFlags);
// WavClose - close wav file
// <hWav> (i) handle returned from WavOpen
// return 0 if success
//
int WINAPI WavClose(HWAV hWav);
// WavPlayEx - play data from wav file
// <hWav> (i) handle returned from WavOpen
// <idDev> (i) wav output device id
// -1 use any suitable output device
// <lpfnPlayStopped> (i) function to call when play is stopped
// NULL do not notify
// <hUserPlayStopped> (i) param to pass to lpfnPlayStopped
// <dwReserved> (i) reserved; must be zero
// <dwFlags> (i) control flags
// WAV_PLAYASYNC return when playback starts (default)
// WAV_PLAYSYNC return after playback completes
// WAV_NOSTOP if device already playing, don't stop it
// WAV_AUTOSTOP stop playback when eof reached (default)
// WAV_NOAUTOSTOP continue playback until WavStop called
// WAV_AUTOCLOSE close wav file after playback stops
// WAV_OPENRETRY if output device busy, retry for up to 2 sec
// return 0 if success
//
// NOTE: data from the wav file is sent to the output device in chunks.
// Chunks are submitted to an output device queue, so that when one
// chunk is finished playing, another is ready to start playing. By
// default, each chunk is large enough to hold approximately 666 ms
// of sound, and 3 chunks are maintained in the output device queue.
// WavSetChunks() can be used to override the defaults.
//
// NOTE: if WAV_NOSTOP is specified in <dwFlags>, and the device specified
// by <idDev> is already in use, this function returns without playing.
// Unless this flag is specified, the specified device will be stopped
// so that the new sound can be played.
//
// NOTE: if WAV_AUTOSTOP is specified in <dwFlags>, WavStop() will be
// called automatically when end of file is reached. This is the
// default behavior, but can be overridden by using the WAV_NOAUTOSTOP
// flag. WAV_NOAUTOSTOP is useful if you are playing a file that
// is growing dynamically as another program writes to it. If this is
// the case, also use the WAV_DENYNONE flag when calling WavOpen().
//
// NOTE: if WAV_AUTOCLOSE is specified in <dwFlags>, WavClose() will
// be called automatically when playback completes. This will happen
// when WavStop() is called explicitly, or when WavPlay() reaches end
// of file and WAV_NOAUTOSTOP was not specified. WAV_AUTOCLOSE is useful
// when used with WAV_PLAYASYNC, since cleanup occurs automatically.
// The <hWav> handle is thereafter invalid, and should not be used again.
//
int WINAPI WavPlay(HWAV hWav, int idDev, DWORD dwFlags);int DLLEXPORT WINAPI WavPlayEx(HWAV hWav, int idDev, PLAYSTOPPEDPROC lpfnPlayStopped, HANDLE hUserPlayStopped, DWORD dwReserved, DWORD dwFlags);
// WavRecordEx - record data to wav file
// <hWav> (i) handle returned from WavOpen
// <idDev> (i) wav input device id
// -1 use any suitable input device
// <lpfnRecordStopped> (i) function to call when record is stopped
// NULL do not notify
// <dwUserRecordStopped> (i) param to pass to lpfnRecordStopped
// <msMaxSize> (i) stop recording if file reaches this size
// 0 no maximum size
// <dwFlags> (i) control flags
// WAV_RECORDASYNC return when recording starts (default)
// WAV_RECORDSYNC return after recording completes
// WAV_NOSTOP if device already recording, don't stop it
// WAV_OPENRETRY if input device busy, retry for up to 2 sec
// return 0 if success
//
// NOTE: data from the input device is written to the wav file in chunks.
// Chunks are submitted to an input device queue, so that when one
// chunk is finished recording, another is ready to start recording.
// By default, each chunk is large enough to hold approximately 666 ms
// of sound, and 3 chunks are maintained in the input device queue.
// WavSetChunks() can be used to override the defaults.
//
// NOTE: if WAV_NOSTOP is specified in <dwFlags>, and the device specified
// by <idDev> is already in use, this function returns without recording.
// Unless this flag is specified, the specified device will be stopped
// so that the new sound can be recorded.
//
int WINAPI WavRecord(HWAV hWav, int idDev, DWORD dwFlags);int DLLEXPORT WINAPI WavRecordEx(HWAV hWav, int idDev, RECORDSTOPPEDPROC lpfnRecordStopped, DWORD dwUserRecordStopped, long msMaxSize, DWORD dwFlags);
// WavStop - stop playing and/or recording
// <hWav> (i) handle returned from WavOpen
// return 0 if success
//
int WINAPI WavStop(HWAV hWav);
// WavRead - read data from wav file
// <hWav> (i) handle returned from WavOpen
// <hpBuf> (o) buffer to contain bytes read
// <sizBuf> (i) size of buffer in bytes
// return bytes read (-1 if error)
//
// NOTE : Even if the read operation does not reach the end of file,
// the number of bytes returned could be less than <sizBuf> if data
// decompression is performed by the wav file's I/O procedure. See the
// <lpIOProc> parameter in WavOpen. It is safest to keep calling
// WavRead() until 0 bytes are read.
//
long DLLEXPORT WINAPI WavRead(HWAV hWav, void _huge *hpBuf, long sizBuf);
// WavWrite - write data to wav file
// <hWav> (i) handle returned from WavOpen
// <hpBuf> (i) buffer containing bytes to write
// <sizBuf> (i) size of buffer in bytes
// return bytes written (-1 if error)
//
// NOTE : Even if the write operation successfully completes,
// the number of bytes returned could be less than <sizBuf> if data
// compression is performed by the wav file's I/O procedure. See the
// <lpIOProc> parameter in WavOpen. It is safest to assume no error
// in WavWrite() occurred if the return value is greater than 0.
//
long DLLEXPORT WINAPI WavWrite(HWAV hWav, void _huge *hpBuf, long sizBuf);
// WavSeek - seek within wav file data
// <hWav> (i) handle returned from WavOpen
// <lOffset> (i) bytes to move pointer
// <nOrigin> (i) position to move from
// 0 move pointer relative to start of data chunk
// 1 move pointer relative to current position
// 2 move pointer relative to end of data chunk
// return new file position (-1 if error)
//
long DLLEXPORT WINAPI WavSeek(HWAV hWav, long lOffset, int nOrigin);
// WavGetState - return current wav state
// <hWav> (i) handle returned from WavOpen
// return WAV_STOPPED, WAV_PLAYING, WAV_RECORDING, or 0 if error
//
WORD DLLEXPORT WINAPI WavGetState(HWAV hWav);
// WavGetLength - get current wav data length in milleseconds
// <hWav> (i) handle returned from WavOpen
// return milleseconds if success, otherwise -1
//
long DLLEXPORT WINAPI WavGetLength(HWAV hWav);
// WavSetLength - set current wav data length in milleseconds
// <hWav> (i) handle returned from WavOpen
// <msLength> (i) length in milleseconds
// return new length in milleseconds if success, otherwise -1
//
// NOTE: afterwards, the current wav data position is set to either
// the previous wav data position or <msLength>, whichever is smaller.
//
long DLLEXPORT WINAPI WavSetLength(HWAV hWav, long msLength);
// WavGetPosition - get current wav data position in milleseconds
// <hWav> (i) handle returned from WavOpen
// return milleseconds if success, otherwise -1
//
long DLLEXPORT WINAPI WavGetPosition(HWAV hWav);
// WavSetPosition - set current wav data position in milleseconds
// <hWav> (i) handle returned from WavOpen
// <msPosition> (i) position in milleseconds
// return new position in milleseconds if success, otherwise -1
//
long DLLEXPORT WINAPI WavSetPosition(HWAV hWav, long msPosition);
// WavGetFormat - get wav format
// <hWav> (i) handle returned from WavOpen
// <dwFlags> (i) control flags
// WAV_FORMATFILE get format of data in file
// WAV_FORMATPLAY get format of output device
// WAV_FORMATRECORD get format of input device
// return pointer to specified format, NULL if error
//
// NOTE: the format structure returned is dynamically allocated.
// Use WavFormatFree() to free the buffer.
//
LPWAVEFORMATEX DLLEXPORT WINAPI WavGetFormat(HWAV hWav, DWORD dwFlags);
// WavSetFormat - set wav format
// <hWav> (i) handle returned from WavOpen
// <lpwfx> (i) wav format
// <dwFlags> (i) control flags
// WAV_FORMATFILE set format of data in file
// WAV_FORMATPLAY set format of output device
// WAV_FORMATRECORD set format of input device
// WAV_FORMATALL set all formats
// return 0 if success
//
int DLLEXPORT WINAPI WavSetFormat(HWAV hWav, LPWAVEFORMATEX lpwfx, DWORD dwFlags);
// WavChooseFormat - choose and set audio format from dialog box
// <hWav> (i) handle returned from WavOpen
// <hwndOwner> (i) owner of dialog box
// NULL no owner
// <lpszTitle> (i) title of the dialog box
// NULL use default title ("Sound Selection")
// <dwFlags> (i) control flags
// WAV_FORMATFILE set format of data in file
// WAV_FORMATPLAY set format of output device
// WAV_FORMATRECORD set format of input device
// WAV_FORMATALL set all formats
// return 0 if success
//
int DLLEXPORT WINAPI WavChooseFormat(HWAV hWav, HWND hwndOwner, LPCTSTR lpszTitle, DWORD dwFlags);
// WavGetVolume - get current volume level
// <hWav> (i) handle returned from WavOpen
// <idDev> (i) wav output device id
// -1 use any suitable output device
// <dwFlags> (i) reserved; must be zero
// return volume level (0 minimum through 100 maximum, -1 if error)
//
int DLLEXPORT WINAPI WavGetVolume(HWAV hWav, int idDev, DWORD dwFlags);
// WavSetVolume - set current volume level
// <hWav> (i) handle returned from WavOpen
// <idDev> (i) wav output device id
// -1 use any suitable output device
// <nLevel> (i) volume level
// 0 minimum volume
// 100 maximum volume
// <dwFlags> (i) control flags
// WAVVOLUME_MIXER set volume through mixer device
// return 0 if success
//
int DLLEXPORT WINAPI WavSetVolume(HWAV hWav, int idDev, int nLevel, DWORD dwFlags);
// WavSupportsVolume - check if audio can be played at specified volume
// <hWav> (i) handle returned from WavOpen
// <idDev> (i) wav output device id
// -1 any suitable output device
// <nLevel> (i) volume level
// 0 minimum volume
// 100 maximum volume
// <dwFlags> (i) control flags
// WAVVOLUME_MIXER check volume support through mixer device
// return TRUE if supported
//
BOOL DLLEXPORT WINAPI WavSupportsVolume(HWAV hWav, int idDev, int nLevel, DWORD dwFlags);
// WavGetSpeed - get current speed level
// <hWav> (i) handle returned from WavOpen
// <idDev> (i) wav output device id
// -1 use any suitable output device
// <dwFlags> (i) reserved; must be zero
// return speed level (100 is normal, 50 is half, 200 is double, -1 if error)
//
int DLLEXPORT WINAPI WavGetSpeed(HWAV hWav, int idDev, DWORD dwFlags);
// WavSetSpeed - set current speed level
// <hWav> (i) handle returned from WavOpen
// <idDev> (i) wav output device id
// -1 use any suitable output device
// <nLevel> (i) speed level
// 50 half speed
// 100 normal speed
// 200 double speed, etc.
// <dwFlags> (i) control flags
#ifdef AVTSM
// WAVSPEED_NOTSM do not use time scale modification engine
#endif
// WAVSPEED_NOPLAYBACKRATE do not use device driver playback rate
// WAVSPEED_NOFORMATADJUST do not use adjusted format to open device
// WAVSPEED_NOACM do not use audio compression manager
// return 0 if success
//
// NOTE: In order to accomodate the specified speed change, it is _possible_
// that this function will in turn call WavSetFormat(hWav, ..., WAV_FORMATPLAY)
// to change the playback format of the specified file. You can prevent this
// side-effect by specifying the WAVSPEED_NOACM flag, but this reduces the
// likelihood that WavSetSpeed will succeed.
//
int DLLEXPORT WINAPI WavSetSpeed(HWAV hWav, int idDev, int nLevel, DWORD dwFlags);
// WavSupportsSpeed - check if audio can be played at specified speed
// <hWav> (i) handle returned from WavOpen
// <idDev> (i) wav output device id
// -1 any suitable output device
// <nLevel> (i) speed level
// 50 half speed
// 100 normal speed
// 200 double speed, etc.
// <dwFlags> (i) control flags
#ifdef AVTSM
// WAVSPEED_NOTSM do not use time scale modification engine
#endif
// WAVSPEED_NOPLAYBACKRATE do not use device driver playback rate
// WAVSPEED_NOFORMATADJUST do not use adjusted format to open device
// WAVSPEED_NOACM do not use audio compression manager
// return TRUE if supported
//
BOOL DLLEXPORT WINAPI WavSupportsSpeed(HWAV hWav, int idDev, int nLevel, DWORD dwFlags);
// WavGetChunks - get chunk count and size
// <hWav> (i) handle returned from WavOpen
// NULL get default chunk count and size
// <lpcChunks> (o) buffer to hold chunk count
// NULL do not get chunk count
// <lpmsChunkSize> (o) buffer to hold chunk size
// NULL do not get chunk size
// <fWavOut> (i) TRUE for playback, FALSE for recording
// return 0 if success
//
int DLLEXPORT WINAPI WavGetChunks(HWAV hWav, int FAR *lpcChunks, long FAR *lpmsChunkSize, BOOL fWavOut);
// WavSetChunks - set chunk count and size
// <hWav> (i) handle returned from WavOpen
// NULL set default chunk count and size
// <cChunks> (i) number of chunks in device queue
// -1 do not set chunk count
// <msChunkSize> (i) chunk size in milleseconds
// -1 do not set chunk size
// <fWavOut> (i) TRUE for playback, FALSE for recording
// return 0 if success
//
int DLLEXPORT WINAPI WavSetChunks(HWAV hWav, int cChunks, long msChunkSize, BOOL fWavOut);
// WavCalcChunkSize - calculate chunk size in bytes
// <lpwfx> (i) wav format
// <msPlayChunkSize> (i) chunk size in milleseconds
// -1 default chunk size
// <fWavOut> (i) TRUE for playback, FALSE for recording
// return chunk size in bytes (-1 if success)
//
long DLLEXPORT WINAPI WavCalcChunkSize(LPWAVEFORMATEX lpwfx, long msChunkSize, BOOL fWavOut);
// WavCopy - copy data from one open wav file to another
// <hWavSrc> (i) source handle returned from WavOpen
// <hWavDst> (i) destination handle returned from WavOpen
// <hpBuf> (o) pointer to copy buffer
// NULL allocate buffer internally
// <sizBuf> (i) size of copy buffer
// -1 default buffer size (16K)
// <lpfnUserAbort> (i) function that returns TRUE if user aborts
// NULL don't check for user abort
// <dwUser> (i) parameter passed to <lpfnUserAbort>
// <dwFlags> (i) control flags
// WAV_NOACM do not use audio compression manager
// return 0 if success (-1 if error, +1 if user abort)
//
int DLLEXPORT WINAPI WavCopy(HWAV hWavSrc, HWAV hWavDst, void _huge *hpBuf, long sizBuf, USERABORTPROC lpfnUserAbort, DWORD dwUser, DWORD dwFlags);
#ifdef AVTSM
// WavReadFormatSpeed - read data from wav file, then format it for speed
// <hWav> (i) handle returned from WavOpen
// <hpBufSpeed> (o) buffer to contain bytes read
// <sizBufSpeed> (i) size of buffer in bytes
// return bytes formatted for speed in <hpBuf> (-1 if error)
//
// NOTE: this function reads a block of data, and then converts it
// from the file format to the speed format, unless those formats
// are identical.
//
long DLLEXPORT WINAPI WavReadFormatSpeed(HWAV hWav, void _huge *hpBufSpeed, long sizBufSpeed);#endif
// WavReadFormatPlay - read data from wav file, then format it for playback
// <hWav> (i) handle returned from WavOpen
// <hpBufPlay> (o) buffer to contain bytes read
// <sizBufPlay> (i) size of buffer in bytes
// return bytes formatted for playback in <hpBuf> (-1 if error)
//
// NOTE: this function reads a block of data, and then converts it
// from the file format to the playback format, unless those formats
// are identical.
//
long DLLEXPORT WINAPI WavReadFormatPlay(HWAV hWav, void _huge *hpBufPlay, long sizBufPlay);
// WavWriteFormatRecord - write data to file after formatting it for file
// <hWav> (i) handle returned from WavOpen
// <hpBufRecord> (i) buffer containing bytes in record format
// <sizBufRecord> (i) size of buffer in bytes
// return bytes written (-1 if error)
//
// NOTE: this function converts a block of data from the record
// format to the file format (unless those formats are identical),
// and then writes the data to disk.
//
long DLLEXPORT WINAPI WavWriteFormatRecord(HWAV hWav, void _huge *hpBufRecord, long sizBufRecord);
// WavGetOutputDevice - get handle to open wav output device
// <hWav> (i) handle returned from WavOpen
// return handle to wav output device (NULL if device not open or error)
//
// NOTE: this function is useful only during playback (after calling
// WavPlay() and before calling WavStop()). The returned device handle
// can then be used when calling the WavOut functions in wavout.h
//
HWAVOUT DLLEXPORT WINAPI WavGetOutputDevice(HWAV hWav);
// WavGetInputDevice - get handle to open wav input device
// <hWav> (i) handle returned from WavOpen
// return handle to wav input device (NULL if device not open or error)
//
// NOTE: this function is useful only during recording (after calling
// WavRecord() and before calling WavStop()). The returned device handle
// can then be used when calling the WavIn functions in wavin.h
//
HWAVIN DLLEXPORT WINAPI WavGetInputDevice(HWAV hWav);
// WavPlaySound - play wav file
// <dwVersion> (i) must be WAV_VERSION
// <hInst> (i) instance handle of calling module
// <idDev> (i) wav output device id
// -1 use any suitable output device
// <lpszFileName> (i) name of file to play
// NULL stop playing current sound, if any
// <lpwfx> (i) wave format
// NULL use format from header or default
// <lpIOProc> (i) address of i/o procedure to use
// NULL use default i/o procedure
// <lpadwInfo> (i) data to pass to i/o procedure during open
// NULL no data to pass
// <dwFlags> (i) control flags
// WAV_ASYNC return when playback starts (default)
// WAV_SYNC return after playback completes
// WAV_FILENAME <lpszFileName> points to a filename
// WAV_RESOURCE <lpszFileName> points to a resource
// WAV_MEMORY <lpszFileName> points to memory block
// WAV_NODEFAULT if sound not found, do not play default
// WAV_LOOP loop sound until WavPlaySound called again
// WAV_NOSTOP if device already playing, don't stop it
// WAV_NORIFF file has no RIFF/WAV header
// WAV_NOACM do not use audio compression manager
// WAV_OPENRETRY if output device busy, retry for up to 2 sec
#ifdef MULTITHREAD
// WAV_MULTITHREAD support multiple threads (default)
// WAV_SINGLETHREAD do not support multiple threads
// WAV_COINITIALIZE call CoInitialize in all secondary threads
#endif
// return 0 if success
//
// NOTE: if WAV_NORIFF is specified in <dwFlags>, then the
// <lpwfx> parameter must be specified. If <lpwfx> is NULL, the
// current default format is assumed.
// WavSetFormat() can be used to set or override the defaults.
//
// NOTE: if WAV_FILENAME is specified in <dwFlags>, then <lpszFileName>
// must point to a file name.
//
// NOTE: if WAV_RESOURCE is specified in <dwFlags>, then <lpszFileName>
// must point to a WAVE resource in the module specified by <hInst>.
// If the first character of the string is a pound sign (#), the remaining
// characters represent a decimal number that specifies the resource id.
//
// NOTE: if WAV_MEMORY is specified in <dwFlags>, then <lpszFileName>
// must be a pointer to a memory block containing a wav file image.
// The pointer must be obtained by calling MemAlloc().
//
// NOTE: if neither WAV_FILENAME, WAV_RESOURCE, or WAV_MEMORY is specified
// in <dwFlags>, the [sounds] section of win.ini or the registry is
// searched for an entry matching <lpszFileName>. If no matching entry
// is found, <lpszFileName> is assumed to be a file name.
//
// NOTE: if WAV_NODEFAULT is specified in <dwFlags>, no default sound
// will be played. Unless this flag is specified, the default system
// event sound entry will be played if the sound specified in
// <lpszFileName> is not found.
//
// NOTE: if WAV_LOOP is specified in <dwFlags>, the sound specified in
// <lpszFileName> will be played repeatedly, until WavPlaySound() is
// called again. The WAV_ASYNC flag must be specified when using this flag.
//
// NOTE: if WAV_NOSTOP is specified in <dwFlags>, and the device specified
// by <idDev> is already in use, this function returns without playing.
// Unless this flag is specified, the specified device will be stopped
// so that the new sound can be played.
//
// NOTE: if <lpIOProc> is not NULL, this i/o procedure will be called
// for opening, closing, reading, writing, and seeking the wav file.
// If <lpadwInfo> is not NULL, this array of three (3) DWORDs will be
// passed to the i/o procedure when the wav file is opened.
// See the Windows mmioOpen() and mmioInstallIOProc() function for details
// on these parameters. Also, the WAV_MEMORY and WAV_RESOURCE flags may
// only be used when <lpIOProc> is NULL.
//
int DLLEXPORT WINAPI WavPlaySound(DWORD dwVersion, HINSTANCE hInst, int idDev, LPCTSTR lpszFileName, LPWAVEFORMATEX lpwfx, LPMMIOPROC lpIOProc, DWORD FAR *lpadwInfo, DWORD dwFlags);
// WavSendMessage - send a user-defined message to the i/o procedure
// <hWav> (i) handle returned from WavOpen
// <wMsg> (i) user-defined message id
// <lParam1> (i) parameter for the message
// <lParam2> (i) parameter for the message
// return value from the i/o procedure (0 if error or unrecognized message)
//
LRESULT DLLEXPORT WINAPI WavSendMessage(HWAV hWav, UINT wMsg, LPARAM lParam1, LPARAM lParam2);
#ifdef TELTHUNK
// WavOpenEx - open an audio file, extra special version
// <dwVersion> (i) must be WAV_VERSION
// <hInst> (i) instance handle of calling module
// <lpszFileName> (i) name of file to open
// <dwReserved> (i) reserved; must be zero
// <dwFlagsOpen> (i) control flags to pass to WavOpen
// <dwFlagsEx> (i) control flags
// WOX_LOCAL file is on local client
// WOX_REMOTE file is on remote server
// WOX_WAVFMT file is in Microsoft RIFF/WAV format
// WOX_VOXFMT file is in Dialogic OKI ADPCM (vox) format
// WOX_WAVDEV file will be played on wav output device
// WOX_TELDEV file will be played on telephone device
// return handle (NULL if error)
//
HWAV DLLEXPORT WINAPI WavOpenEx(DWORD dwVersion, HINSTANCE hInst, LPTSTR lpszFileName, DWORD dwReserved, DWORD dwFlagsOpen, DWORD dwFlagsEx);#endif
#ifdef __cplusplus
}#endif
#endif // __WAV_H__
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