xref: /reactos/sdk/include/psdk/mmddk.h (revision cc7cf826)
1 /* -*- tab-width: 8; c-basic-offset: 4 -*- */
2 
3 /*****************************************************************************
4  * Copyright 1998, Luiz Otavio L. Zorzella
5  *           1999, Eric Pouech
6  *
7  * Purpose:   multimedia declarations (external to WINMM & MMSYSTEM DLLs
8  *                                     for other DLLs (MCI, drivers...))
9  *
10  * This library is free software; you can redistribute it and/or
11  * modify it under the terms of the GNU Lesser General Public
12  * License as published by the Free Software Foundation; either
13  * version 2.1 of the License, or (at your option) any later version.
14  *
15  * This library is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
18  * Lesser General Public License for more details.
19  *
20  * You should have received a copy of the GNU Lesser General Public
21  * License along with this library; if not, write to the Free Software
22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
23  *
24  *****************************************************************************
25  */
26 #ifndef __MMDDK_H
27 #define __MMDDK_H
28 
29 #include <mmsystem.h>
30 #include <winbase.h>
31 
32 #ifdef __cplusplus
33 extern "C" {
34 #endif
35 
36 /* Maxium drivers  */
37 #define MAXWAVEDRIVERS 10
38 
39 #define MAX_MIDIINDRV 	(16)
40 /* For now I'm making 16 the maximum number of midi devices one can
41  * have. This should be more than enough for everybody. But as a purist,
42  * I intend to make it unbounded in the future, as soon as I figure
43  * a good way to do so.
44  */
45 #define MAX_MIDIOUTDRV 	(16)
46 
47 /* ==================================
48  *   Multimedia DDK compatible part
49  * ================================== */
50 
51 #include <pshpack1.h>
52 
53 #define DRVM_INIT		100
54 #define DRVM_EXIT		101
55 #define DRVM_DISABLE		102
56 #define DRVM_ENABLE		103
57 
58 /* messages that have IOCTL format
59  *    dw1 = NULL or handle
60  *    dw2 = NULL or ptr to DRVM_IOCTL_DATA
61  *    return is MMRESULT
62  */
63 #define DRVM_IOCTL		0x100
64 #define DRVM_ADD_THRU		(DRVM_IOCTL+1)
65 #define DRVM_REMOVE_THRU	(DRVM_IOCTL+2)
66 #define DRVM_IOCTL_LAST		(DRVM_IOCTL+5)
67 typedef struct {
68     DWORD  dwSize; 	/* size of this structure */
69     DWORD  dwCmd;  	/* IOCTL command code, 0x80000000 and above reserved for system */
70 } DRVM_IOCTL_DATA, *LPDRVM_IOCTL_DATA;
71 
72 /* command code ranges for dwCmd field of DRVM_IOCTL message
73  * - codes from 0 to 0x7FFFFFFF are user defined
74  * - codes from 0x80000000 to 0xFFFFFFFF are reserved for future definition by microsoft
75  */
76 #define DRVM_IOCTL_CMD_USER   0x00000000L
77 #define DRVM_IOCTL_CMD_SYSTEM 0x80000000L
78 
79 #define DRVM_MAPPER			0x2000
80 #define DRVM_USER			0x4000
81 #define DRVM_MAPPER_STATUS		(DRVM_MAPPER+0)
82 #define DRVM_MAPPER_RECONFIGURE 	(DRVM_MAPPER+1)
83 #define DRVM_MAPPER_PREFERRED_GET	(DRVM_MAPPER+21)
84 #define DRVM_MAPPER_CONSOLEVOICECOM_GET	(DRVM_MAPPER+23)
85 
86 #define DRV_QUERYDRVENTRY		(DRV_RESERVED + 1)
87 #define DRV_QUERYDEVNODE		(DRV_RESERVED + 2)
88 #define DRV_QUERYNAME			(DRV_RESERVED + 3)
89 #define DRV_QUERYDRIVERIDS		(DRV_RESERVED + 4)
90 #define DRV_QUERYMAPPABLE		(DRV_RESERVED + 5)
91 #define DRV_QUERYMODULE			(DRV_RESERVED + 9)
92 #define DRV_PNPINSTALL			(DRV_RESERVED + 11)
93 #define DRV_QUERYDEVICEINTERFACE	(DRV_RESERVED + 12)
94 #define DRV_QUERYDEVICEINTERFACESIZE	(DRV_RESERVED + 13)
95 #define DRV_QUERYSTRINGID		(DRV_RESERVED + 14)
96 #define DRV_QUERYSTRINGIDSIZE		(DRV_RESERVED + 15)
97 #define DRV_QUERYIDFROMSTRINGID		(DRV_RESERVED + 16)
98 #define DRV_QUERYFUNCTIONINSTANCEID	(DRV_RESERVED + 17)
99 #ifdef _WINE
100 #define DRV_QUERYDSOUNDIFACE		(DRV_RESERVED + 20)
101 #define DRV_QUERYDSOUNDDESC		(DRV_RESERVED + 21)
102 #define DRV_QUERYDSOUNDGUID		(DRV_RESERVED + 22)
103 #endif
104 
105 #define WODM_INIT		DRVM_INIT
106 #define WODM_GETNUMDEVS		 3
107 #define WODM_GETDEVCAPS		 4
108 #define WODM_OPEN		 5
109 #define WODM_CLOSE		 6
110 #define WODM_PREPARE		 7
111 #define WODM_UNPREPARE		 8
112 #define WODM_WRITE		 9
113 #define WODM_PAUSE		10
114 #define WODM_RESTART		11
115 #define WODM_RESET		12
116 #define WODM_GETPOS		13
117 #define WODM_GETPITCH		14
118 #define WODM_SETPITCH		15
119 #define WODM_GETVOLUME		16
120 #define WODM_SETVOLUME		17
121 #define WODM_GETPLAYBACKRATE	18
122 #define WODM_SETPLAYBACKRATE	19
123 #define WODM_BREAKLOOP		20
124 #define WODM_PREFERRED		21
125 
126 #define WODM_MAPPER_STATUS      (DRVM_MAPPER_STATUS + 0)
127 #define WAVEOUT_MAPPER_STATUS_DEVICE    0
128 #define WAVEOUT_MAPPER_STATUS_MAPPED    1
129 #define WAVEOUT_MAPPER_STATUS_FORMAT    2
130 
131 #define WODM_BUSY		21
132 
133 #define WIDM_INIT		DRVM_INIT
134 #define WIDM_GETNUMDEVS		50
135 #define WIDM_GETDEVCAPS		51
136 #define WIDM_OPEN		52
137 #define WIDM_CLOSE		53
138 #define WIDM_PREPARE		54
139 #define WIDM_UNPREPARE		55
140 #define WIDM_ADDBUFFER		56
141 #define WIDM_START		57
142 #define WIDM_STOP		58
143 #define WIDM_RESET		59
144 #define WIDM_GETPOS		60
145 #define WIDM_PREFERRED		61
146 #define WIDM_MAPPER_STATUS      (DRVM_MAPPER_STATUS + 0)
147 #define WAVEIN_MAPPER_STATUS_DEVICE     0
148 #define WAVEIN_MAPPER_STATUS_MAPPED     1
149 #define WAVEIN_MAPPER_STATUS_FORMAT     2
150 
151 #define MODM_INIT		DRVM_INIT
152 #define MODM_GETNUMDEVS		1
153 #define MODM_GETDEVCAPS		2
154 #define MODM_OPEN		3
155 #define MODM_CLOSE		4
156 #define MODM_PREPARE		5
157 #define MODM_UNPREPARE		6
158 #define MODM_DATA		7
159 #define MODM_LONGDATA		8
160 #define MODM_RESET          	9
161 #define MODM_GETVOLUME		10
162 #define MODM_SETVOLUME		11
163 #define MODM_CACHEPATCHES	12
164 #define MODM_CACHEDRUMPATCHES	13
165 
166 #define MIDM_INIT		DRVM_INIT
167 #define MIDM_GETNUMDEVS  	53
168 #define MIDM_GETDEVCAPS  	54
169 #define MIDM_OPEN        	55
170 #define MIDM_CLOSE       	56
171 #define MIDM_PREPARE     	57
172 #define MIDM_UNPREPARE   	58
173 #define MIDM_ADDBUFFER   	59
174 #define MIDM_START       	60
175 #define MIDM_STOP        	61
176 #define MIDM_RESET       	62
177 
178 
179 #define AUXM_INIT             	DRVM_INIT
180 #define AUXDM_GETNUMDEVS    	3
181 #define AUXDM_GETDEVCAPS    	4
182 #define AUXDM_GETVOLUME     	5
183 #define AUXDM_SETVOLUME     	6
184 
185 #define MXDM_INIT		DRVM_INIT
186 #define MXDM_USER               DRVM_USER
187 #define MXDM_MAPPER             DRVM_MAPPER
188 
189 #define	MXDM_GETNUMDEVS		1
190 #define	MXDM_GETDEVCAPS		2
191 #define	MXDM_OPEN		3
192 #define	MXDM_CLOSE		4
193 #define	MXDM_GETLINEINFO	5
194 #define	MXDM_GETLINECONTROLS	6
195 #define	MXDM_GETCONTROLDETAILS	7
196 #define	MXDM_SETCONTROLDETAILS	8
197 
198 /* pre-defined joystick types */
199 #define JOY_HW_NONE			0
200 #define JOY_HW_CUSTOM			1
201 #define JOY_HW_2A_2B_GENERIC		2
202 #define JOY_HW_2A_4B_GENERIC		3
203 #define JOY_HW_2B_GAMEPAD		4
204 #define JOY_HW_2B_FLIGHTYOKE		5
205 #define JOY_HW_2B_FLIGHTYOKETHROTTLE	6
206 #define JOY_HW_3A_2B_GENERIC		7
207 #define JOY_HW_3A_4B_GENERIC		8
208 #define JOY_HW_4B_GAMEPAD		9
209 #define JOY_HW_4B_FLIGHTYOKE		10
210 #define JOY_HW_4B_FLIGHTYOKETHROTTLE	11
211 #define JOY_HW_LASTENTRY		12
212 
213 /* calibration flags */
214 #define	JOY_ISCAL_XY		0x00000001l	/* XY are calibrated */
215 #define	JOY_ISCAL_Z		0x00000002l	/* Z is calibrated */
216 #define	JOY_ISCAL_R		0x00000004l	/* R is calibrated */
217 #define	JOY_ISCAL_U		0x00000008l	/* U is calibrated */
218 #define	JOY_ISCAL_V		0x00000010l	/* V is calibrated */
219 #define	JOY_ISCAL_POV		0x00000020l	/* POV is calibrated */
220 
221 /* point of view constants */
222 #define JOY_POV_NUMDIRS          4
223 #define JOY_POVVAL_FORWARD       0
224 #define JOY_POVVAL_BACKWARD      1
225 #define JOY_POVVAL_LEFT          2
226 #define JOY_POVVAL_RIGHT         3
227 
228 /* Specific settings for joystick hardware */
229 #define JOY_HWS_HASZ		0x00000001l	/* has Z info? */
230 #define JOY_HWS_HASPOV		0x00000002l	/* point of view hat present */
231 #define JOY_HWS_POVISBUTTONCOMBOS 0x00000004l	/* pov done through combo of buttons */
232 #define JOY_HWS_POVISPOLL	0x00000008l	/* pov done through polling */
233 #define JOY_HWS_ISYOKE		0x00000010l	/* joystick is a flight yoke */
234 #define JOY_HWS_ISGAMEPAD	0x00000020l	/* joystick is a game pad */
235 #define JOY_HWS_ISCARCTRL	0x00000040l	/* joystick is a car controller */
236 /* X defaults to J1 X axis */
237 #define JOY_HWS_XISJ1Y		0x00000080l	/* X is on J1 Y axis */
238 #define JOY_HWS_XISJ2X		0x00000100l	/* X is on J2 X axis */
239 #define JOY_HWS_XISJ2Y		0x00000200l	/* X is on J2 Y axis */
240 /* Y defaults to J1 Y axis */
241 #define JOY_HWS_YISJ1X		0x00000400l	/* Y is on J1 X axis */
242 #define JOY_HWS_YISJ2X		0x00000800l	/* Y is on J2 X axis */
243 #define JOY_HWS_YISJ2Y		0x00001000l	/* Y is on J2 Y axis */
244 /* Z defaults to J2 Y axis */
245 #define JOY_HWS_ZISJ1X		0x00002000l	/* Z is on J1 X axis */
246 #define JOY_HWS_ZISJ1Y		0x00004000l	/* Z is on J1 Y axis */
247 #define JOY_HWS_ZISJ2X		0x00008000l	/* Z is on J2 X axis */
248 /* POV defaults to J2 Y axis, if it is not button based */
249 #define JOY_HWS_POVISJ1X	0x00010000l	/* pov done through J1 X axis */
250 #define JOY_HWS_POVISJ1Y	0x00020000l	/* pov done through J1 Y axis */
251 #define JOY_HWS_POVISJ2X	0x00040000l	/* pov done through J2 X axis */
252 /* R defaults to J2 X axis */
253 #define JOY_HWS_HASR		0x00080000l	/* has R (4th axis) info */
254 #define JOY_HWS_RISJ1X		0x00100000l	/* R done through J1 X axis */
255 #define JOY_HWS_RISJ1Y		0x00200000l	/* R done through J1 Y axis */
256 #define JOY_HWS_RISJ2Y		0x00400000l	/* R done through J2 X axis */
257 /* U & V for future hardware */
258 #define JOY_HWS_HASU		0x00800000l	/* has U (5th axis) info */
259 #define JOY_HWS_HASV		0x01000000l	/* has V (6th axis) info */
260 
261 /* Usage settings */
262 #define JOY_US_HASRUDDER	0x00000001l	/* joystick configured with rudder */
263 #define JOY_US_PRESENT		0x00000002l	/* is joystick actually present? */
264 #define JOY_US_ISOEM		0x00000004l	/* joystick is an OEM defined type */
265 
266 
267 /* struct for storing x,y, z, and rudder values */
268 typedef struct joypos_tag {
269     DWORD	dwX;
270     DWORD	dwY;
271     DWORD	dwZ;
272     DWORD	dwR;
273     DWORD	dwU;
274     DWORD	dwV;
275 } JOYPOS, *LPJOYPOS;
276 
277 /* struct for storing ranges */
278 typedef struct joyrange_tag {
279     JOYPOS	jpMin;
280     JOYPOS	jpMax;
281     JOYPOS	jpCenter;
282 } JOYRANGE,*LPJOYRANGE;
283 
284 typedef struct joyreguservalues_tag {
285     DWORD	dwTimeOut;	/* value at which to timeout joystick polling */
286     JOYRANGE	jrvRanges;	/* range of values app wants returned for axes */
287     JOYPOS	jpDeadZone;	/* area around center to be considered
288     				   as "dead". specified as a percentage
289 				   (0-100). Only X & Y handled by system driver */
290 } JOYREGUSERVALUES, *LPJOYREGUSERVALUES;
291 
292 typedef struct joyreghwsettings_tag {
293     DWORD	dwFlags;
294     DWORD	dwNumButtons;		/* number of buttons */
295 } JOYREGHWSETTINGS, *LPJOYHWSETTINGS;
296 
297 /* range of values returned by the hardware (filled in by calibration) */
298 typedef struct joyreghwvalues_tag {
299     JOYRANGE	jrvHardware;		/* values returned by hardware */
300     DWORD	dwPOVValues[JOY_POV_NUMDIRS];/* POV values returned by hardware */
301     DWORD	dwCalFlags;		/* what has been calibrated */
302 } JOYREGHWVALUES, *LPJOYREGHWVALUES;
303 
304 /* hardware configuration */
305 typedef struct joyreghwconfig_tag {
306     JOYREGHWSETTINGS	hws;		/* hardware settings */
307     DWORD		dwUsageSettings;/* usage settings */
308     JOYREGHWVALUES	hwv;		/* values returned by hardware */
309     DWORD		dwType;		/* type of joystick */
310     DWORD		dwReserved;	/* reserved for OEM drivers */
311 } JOYREGHWCONFIG, *LPJOYREGHWCONFIG;
312 
313 /* joystick calibration info structure */
314 typedef struct joycalibrate_tag {
315     UINT    wXbase;
316     UINT    wXdelta;
317     UINT    wYbase;
318     UINT    wYdelta;
319     UINT    wZbase;
320     UINT    wZdelta;
321 } JOYCALIBRATE;
322 typedef JOYCALIBRATE *LPJOYCALIBRATE;
323 
324 /* prototype for joystick message function */
325 typedef UINT (CALLBACK * JOYDEVMSGPROC)(DWORD dwID, UINT uMessage, LPARAM lParam1, LPARAM lParam2);
326 typedef JOYDEVMSGPROC *LPJOYDEVMSGPROC;
327 
328 /* messages sent to joystick driver's DriverProc() function */
329 #define JDD_GETNUMDEVS          (DRV_RESERVED + 0x0001)
330 #define JDD_GETDEVCAPS          (DRV_RESERVED + 0x0002)
331 #define JDD_GETPOS              (DRV_RESERVED + 0x0101)
332 #define JDD_SETCALIBRATION      (DRV_RESERVED + 0x0102)
333 #define JDD_CONFIGCHANGED       (DRV_RESERVED + 0x0103)
334 #define JDD_GETPOSEX            (DRV_RESERVED + 0x0104)
335 
336 #define MCI_MAX_DEVICE_TYPE_LENGTH 80
337 
338 #define MCI_OPEN_DRIVER                 0x0801
339 #define MCI_CLOSE_DRIVER                0x0802
340 
341 #define MCI_FALSE                       (MCI_STRING_OFFSET + 19)
342 #define MCI_TRUE                        (MCI_STRING_OFFSET + 20)
343 
344 #define MCI_FORMAT_RETURN_BASE          MCI_FORMAT_MILLISECONDS_S
345 #define MCI_FORMAT_MILLISECONDS_S       (MCI_STRING_OFFSET + 21)
346 #define MCI_FORMAT_HMS_S                (MCI_STRING_OFFSET + 22)
347 #define MCI_FORMAT_MSF_S                (MCI_STRING_OFFSET + 23)
348 #define MCI_FORMAT_FRAMES_S             (MCI_STRING_OFFSET + 24)
349 #define MCI_FORMAT_SMPTE_24_S           (MCI_STRING_OFFSET + 25)
350 #define MCI_FORMAT_SMPTE_25_S           (MCI_STRING_OFFSET + 26)
351 #define MCI_FORMAT_SMPTE_30_S           (MCI_STRING_OFFSET + 27)
352 #define MCI_FORMAT_SMPTE_30DROP_S       (MCI_STRING_OFFSET + 28)
353 #define MCI_FORMAT_BYTES_S              (MCI_STRING_OFFSET + 29)
354 #define MCI_FORMAT_SAMPLES_S            (MCI_STRING_OFFSET + 30)
355 #define MCI_FORMAT_TMSF_S               (MCI_STRING_OFFSET + 31)
356 
357 #define MCI_VD_FORMAT_TRACK_S           (MCI_VD_OFFSET + 5)
358 
359 #define WAVE_FORMAT_PCM_S               (MCI_WAVE_OFFSET + 0)
360 #define WAVE_MAPPER_S                   (MCI_WAVE_OFFSET + 1)
361 
362 #define MCI_SEQ_MAPPER_S                (MCI_SEQ_OFFSET + 5)
363 #define MCI_SEQ_FILE_S                  (MCI_SEQ_OFFSET + 6)
364 #define MCI_SEQ_MIDI_S                  (MCI_SEQ_OFFSET + 7)
365 #define MCI_SEQ_SMPTE_S                 (MCI_SEQ_OFFSET + 8)
366 #define MCI_SEQ_FORMAT_SONGPTR_S        (MCI_SEQ_OFFSET + 9)
367 #define MCI_SEQ_NONE_S                  (MCI_SEQ_OFFSET + 10)
368 #define MIDIMAPPER_S                    (MCI_SEQ_OFFSET + 11)
369 
370 #define MCI_RESOURCE_RETURNED       0x00010000  /* resource ID */
371 #define MCI_COLONIZED3_RETURN       0x00020000  /* colonized ID, 3 bytes data */
372 #define MCI_COLONIZED4_RETURN       0x00040000  /* colonized ID, 4 bytes data */
373 #define MCI_INTEGER_RETURNED        0x00080000  /* integer conversion needed */
374 #define MCI_RESOURCE_DRIVER         0x00100000  /* driver owns returned resource */
375 
376 #define MCI_NO_COMMAND_TABLE    0xFFFF
377 
378 #define MCI_COMMAND_HEAD        0
379 #define MCI_STRING              1
380 #define MCI_INTEGER             2
381 #define MCI_END_COMMAND         3
382 #define MCI_RETURN              4
383 #define MCI_FLAG                5
384 #define MCI_END_COMMAND_LIST    6
385 #define MCI_RECT                7
386 #define MCI_CONSTANT            8
387 #define MCI_END_CONSTANT        9
388 #define MCI_HWND                10
389 #define MCI_HPAL                11
390 #define MCI_HDC                 12
391 
392 #ifdef _WIN64
393 #define MCI_INTEGER64           13
394 #endif /* _WIN64 */
395 
396 #define MAKEMCIRESOURCE(wRet, wRes) MAKELRESULT((wRet), (wRes))
397 
398 typedef struct {
399 	DWORD_PTR		dwCallback;
400 	DWORD_PTR		dwInstance;
401 	HMIDIOUT		hMidi;
402 	DWORD   		dwFlags;
403 } PORTALLOC, *LPPORTALLOC;
404 
405 typedef struct {
406 	HWAVE			hWave;
407 	LPWAVEFORMATEX		lpFormat;
408 	DWORD_PTR		dwCallback;
409 	DWORD_PTR		dwInstance;
410 	UINT			uMappedDeviceID;
411 	DWORD_PTR		dnDevNode;
412 } WAVEOPENDESC, *LPWAVEOPENDESC;
413 
414 typedef struct {
415         DWORD  			dwStreamID;
416         WORD   			wDeviceID;
417 } MIDIOPENSTRMID;
418 
419 typedef struct {
420 	HMIDI			hMidi;
421 	DWORD_PTR		dwCallback;
422 	DWORD_PTR		dwInstance;
423 	DWORD_PTR		dnDevNode;
424         DWORD          		cIds;
425         MIDIOPENSTRMID 		rgIds;
426 } MIDIOPENDESC, *LPMIDIOPENDESC;
427 
428 typedef struct tMIXEROPENDESC
429 {
430 	HMIXEROBJ		hmx;
431 	LPVOID			pReserved0;
432 	DWORD_PTR			dwCallback;
433 	DWORD_PTR			dwInstance;
434 	DWORD_PTR			dnDevNode;
435 } MIXEROPENDESC, *LPMIXEROPENDESC;
436 
437 typedef struct {
438 	UINT			wDeviceID;		/* device ID */
439 	LPSTR			lpstrParams;		/* parameter string for entry in SYSTEM.INI */
440 	UINT			wCustomCommandTable;	/* custom command table (0xFFFF if none) * filled in by the driver */
441 	UINT			wType;			/* driver type (filled in by the driver) */
442 } MCI_OPEN_DRIVER_PARMSA, *LPMCI_OPEN_DRIVER_PARMSA;
443 
444 typedef struct {
445 	UINT			wDeviceID;		/* device ID */
446 	LPWSTR			lpstrParams;		/* parameter string for entry in SYSTEM.INI */
447 	UINT			wCustomCommandTable;	/* custom command table (0xFFFF if none) * filled in by the driver */
448 	UINT			wType;			/* driver type (filled in by the driver) */
449 } MCI_OPEN_DRIVER_PARMSW, *LPMCI_OPEN_DRIVER_PARMSW;
450 
451 DWORD_PTR		WINAPI	mciGetDriverData(UINT uDeviceID);
452 BOOL			WINAPI	mciSetDriverData(UINT uDeviceID, DWORD_PTR dwData);
453 UINT			WINAPI	mciDriverYield(UINT uDeviceID);
454 BOOL			WINAPI	mciDriverNotify(HWND hwndCallback, UINT uDeviceID,
455 						UINT uStatus);
456 UINT			WINAPI	mciLoadCommandResource(HINSTANCE hInstance,
457 					       LPCWSTR lpResName, UINT uType);
458 BOOL			WINAPI	mciFreeCommandResource(UINT uTable);
459 
460 #define DCB_NULL		0x0000
461 #define DCB_WINDOW		0x0001			/* dwCallback is a HWND */
462 #define DCB_TASK		0x0002			/* dwCallback is a HTASK */
463 #define DCB_FUNCTION		0x0003			/* dwCallback is a FARPROC */
464 #define DCB_EVENT		0x0005			/* dwCallback is an EVENT Handler */
465 #define DCB_TYPEMASK		0x0007
466 #define DCB_NOSWITCH		0x0008			/* don't switch stacks for callback */
467 
468 BOOL		 	APIENTRY	DriverCallback(DWORD_PTR dwCallBack, DWORD uFlags, HDRVR hDev,
469 					       DWORD wMsg, DWORD_PTR dwUser, DWORD_PTR dwParam1, DWORD_PTR dwParam2);
470 
471 typedef void (*LPTASKCALLBACK)(DWORD dwInst);
472 
473 #define TASKERR_NOTASKSUPPORT 1
474 #define TASKERR_OUTOFMEMORY   2
475 UINT WINAPI mmTaskCreate(LPTASKCALLBACK, HANDLE*, DWORD_PTR);
476 void     WINAPI mmTaskBlock(DWORD);
477 BOOL     WINAPI mmTaskSignal(DWORD);
478 void     WINAPI mmTaskYield(void);
479 DWORD   WINAPI mmGetCurrentTask(void);
480 
481 
482 #define  WAVE_DIRECTSOUND               0x0080
483 
484 
485 #include <poppack.h>
486 
487 #ifdef __cplusplus
488 } // extern "C"
489 #endif
490 
491 #endif /* __MMDDK_H */
492