git.oblomov.eu Git - wine/blob - dlls/mciavi32/info.c

   1 /*
   2  * Digital video MCI Wine Driver
   3  *
   4  * Copyright 1999, 2000 Eric POUECH
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include <string.h>
  22 #include "private_mciavi.h"
  23 #include "wine/debug.h"
  24 #include "wine/unicode.h"
  25
  26 WINE_DEFAULT_DEBUG_CHANNEL(mciavi);
  27
  28 /**************************************************************************
  29  *                              MCIAVI_ConvertFrameToTimeFormat [internal]
  30  */
  31 DWORD   MCIAVI_ConvertFrameToTimeFormat(WINE_MCIAVI* wma, DWORD val, LPDWORD lpRet)
  32 {
  33     DWORD          ret = 0;
  34
  35     switch (wma->dwMciTimeFormat) {
  36     case MCI_FORMAT_MILLISECONDS:
  37         ret = (val * wma->mah.dwMicroSecPerFrame) / 1000;
  38         break;
  39     case MCI_FORMAT_FRAMES:
  40         ret = val;
  41         break;
  42     default:
  43         WARN("Bad time format %lu!\n", wma->dwMciTimeFormat);
  44     }
  45     TRACE("val=%lu=0x%08lx [tf=%lu] => ret=%lu\n", val, val, wma->dwMciTimeFormat, ret);
  46     *lpRet = 0;
  47     return ret;
  48 }
  49
  50 /**************************************************************************
  51  *                              MCIAVI_ConvertTimeFormatToFrame [internal]
  52  */
  53 DWORD   MCIAVI_ConvertTimeFormatToFrame(WINE_MCIAVI* wma, DWORD val)
  54 {
  55     DWORD       ret = 0;
  56
  57     switch (wma->dwMciTimeFormat) {
  58     case MCI_FORMAT_MILLISECONDS:
  59         ret = (val * 1000) / wma->mah.dwMicroSecPerFrame;
  60         break;
  61     case MCI_FORMAT_FRAMES:
  62         ret = val;
  63         break;
  64     default:
  65         WARN("Bad time format %lu!\n", wma->dwMciTimeFormat);
  66     }
  67     TRACE("val=%lu=0x%08lx [tf=%lu] => ret=%lu\n", val, val, wma->dwMciTimeFormat, ret);
  68     return ret;
  69 }
  70
  71 /***************************************************************************
  72  *                              MCIAVI_mciGetDevCaps            [internal]
  73  */
  74 DWORD   MCIAVI_mciGetDevCaps(UINT wDevID, DWORD dwFlags,  LPMCI_GETDEVCAPS_PARMS lpParms)
  75 {
  76     WINE_MCIAVI*        wma = MCIAVI_mciGetOpenDev(wDevID);
  77     DWORD               ret;
  78
  79     TRACE("(%04x, %08lX, %p)\n", wDevID, dwFlags, lpParms);
  80
  81     if (lpParms == NULL)        return MCIERR_NULL_PARAMETER_BLOCK;
  82     if (wma == NULL)            return MCIERR_INVALID_DEVICE_ID;
  83
  84     EnterCriticalSection(&wma->cs);
  85
  86     if (dwFlags & MCI_GETDEVCAPS_ITEM) {
  87         switch (lpParms->dwItem) {
  88         case MCI_GETDEVCAPS_DEVICE_TYPE:
  89             TRACE("MCI_GETDEVCAPS_DEVICE_TYPE !\n");
  90             lpParms->dwReturn = MAKEMCIRESOURCE(MCI_DEVTYPE_DIGITAL_VIDEO, MCI_DEVTYPE_DIGITAL_VIDEO);
  91             ret = MCI_RESOURCE_RETURNED;
  92             break;
  93         case MCI_GETDEVCAPS_HAS_AUDIO:
  94             TRACE("MCI_GETDEVCAPS_HAS_AUDIO !\n");
  95             lpParms->dwReturn = MAKEMCIRESOURCE(TRUE, MCI_TRUE);
  96             ret = MCI_RESOURCE_RETURNED;
  97             break;
  98         case MCI_GETDEVCAPS_HAS_VIDEO:
  99             TRACE("MCI_GETDEVCAPS_HAS_VIDEO !\n");
 100             lpParms->dwReturn = MAKEMCIRESOURCE(TRUE, MCI_TRUE);
 101             ret = MCI_RESOURCE_RETURNED;
 102             break;
 103         case MCI_GETDEVCAPS_USES_FILES:
 104             TRACE("MCI_GETDEVCAPS_USES_FILES !\n");
 105             lpParms->dwReturn = MAKEMCIRESOURCE(TRUE, MCI_TRUE);
 106             ret = MCI_RESOURCE_RETURNED;
 107             break;
 108         case MCI_GETDEVCAPS_COMPOUND_DEVICE:
 109             TRACE("MCI_GETDEVCAPS_COMPOUND_DEVICE !\n");
 110             lpParms->dwReturn = MAKEMCIRESOURCE(TRUE, MCI_TRUE);
 111             ret = MCI_RESOURCE_RETURNED;
 112             break;
 113         case MCI_GETDEVCAPS_CAN_EJECT:
 114             TRACE("MCI_GETDEVCAPS_CAN_EJECT !\n");
 115             lpParms->dwReturn = MAKEMCIRESOURCE(FALSE, MCI_FALSE);
 116             ret = MCI_RESOURCE_RETURNED;
 117             break;
 118         case MCI_GETDEVCAPS_CAN_PLAY:
 119             TRACE("MCI_GETDEVCAPS_CAN_PLAY !\n");
 120             lpParms->dwReturn = MAKEMCIRESOURCE(TRUE, MCI_TRUE);
 121             ret = MCI_RESOURCE_RETURNED;
 122             break;
 123         case MCI_GETDEVCAPS_CAN_RECORD:
 124             TRACE("MCI_GETDEVCAPS_CAN_RECORD !\n");
 125             lpParms->dwReturn = MAKEMCIRESOURCE(FALSE, MCI_FALSE);
 126             ret = MCI_RESOURCE_RETURNED;
 127             break;
 128         case MCI_GETDEVCAPS_CAN_SAVE:
 129             TRACE("MCI_GETDEVCAPS_CAN_SAVE !\n");
 130             lpParms->dwReturn = MAKEMCIRESOURCE(FALSE, MCI_FALSE);
 131             ret = MCI_RESOURCE_RETURNED;
 132             break;
 133         default:
 134             FIXME("Unknown capability (%08lx) !\n", lpParms->dwItem);
 135            ret = MCIERR_UNRECOGNIZED_COMMAND;
 136             break;
 137         }
 138     } else {
 139         WARN("No GetDevCaps-Item !\n");
 140        ret = MCIERR_UNRECOGNIZED_COMMAND;
 141     }
 142
 143     LeaveCriticalSection(&wma->cs);
 144     return ret;
 145 }
 146
 147 /***************************************************************************
 148  *                              MCIAVI_mciInfo                  [internal]
 149  */
 150 DWORD   MCIAVI_mciInfo(UINT wDevID, DWORD dwFlags, LPMCI_DGV_INFO_PARMSW lpParms)
 151 {
 152     LPCWSTR             str = 0;
 153     WINE_MCIAVI*        wma = MCIAVI_mciGetOpenDev(wDevID);
 154     DWORD               ret = 0;
 155     static const WCHAR wszAviPlayer[] = {'W','i','n','e','\'','s',' ','A','V','I',' ','p','l','a','y','e','r',0};
 156
 157     if (lpParms == NULL || lpParms->lpstrReturn == NULL)
 158         return MCIERR_NULL_PARAMETER_BLOCK;
 159     if (wma == NULL) return MCIERR_INVALID_DEVICE_ID;
 160
 161     TRACE("buf=%p, len=%lu\n", lpParms->lpstrReturn, lpParms->dwRetSize);
 162
 163     EnterCriticalSection(&wma->cs);
 164
 165     if (dwFlags & MCI_INFO_PRODUCT)
 166         str = wszAviPlayer;
 167     else if (dwFlags & MCI_INFO_FILE)
 168         str = wma->lpFileName;
 169     else {
 170         WARN("Don't know this info command (%lu)\n", dwFlags);
 171         ret = MCIERR_UNRECOGNIZED_COMMAND;
 172     }
 173     if (str) {
 174         if (strlenW(str) + 1 > lpParms->dwRetSize) {
 175             ret = MCIERR_PARAM_OVERFLOW;
 176         } else {
 177             lstrcpynW(lpParms->lpstrReturn, str, lpParms->dwRetSize);
 178         }
 179     } else {
 180         lpParms->lpstrReturn[0] = 0;
 181     }
 182
 183     LeaveCriticalSection(&wma->cs);
 184     return ret;
 185 }
 186
 187 /***************************************************************************
 188  *                              MCIAVI_mciSet                   [internal]
 189  */
 190 DWORD   MCIAVI_mciSet(UINT wDevID, DWORD dwFlags, LPMCI_DGV_SET_PARMS lpParms)
 191 {
 192     WINE_MCIAVI*        wma = MCIAVI_mciGetOpenDev(wDevID);
 193
 194     if (lpParms == NULL)        return MCIERR_NULL_PARAMETER_BLOCK;
 195     if (wma == NULL)            return MCIERR_INVALID_DEVICE_ID;
 196
 197     EnterCriticalSection(&wma->cs);
 198
 199     if (dwFlags & MCI_SET_TIME_FORMAT) {
 200         switch (lpParms->dwTimeFormat) {
 201         case MCI_FORMAT_MILLISECONDS:
 202             TRACE("MCI_FORMAT_MILLISECONDS !\n");
 203             wma->dwMciTimeFormat = MCI_FORMAT_MILLISECONDS;
 204             break;
 205         case MCI_FORMAT_FRAMES:
 206             TRACE("MCI_FORMAT_FRAMES !\n");
 207             wma->dwMciTimeFormat = MCI_FORMAT_FRAMES;
 208             break;
 209         default:
 210             WARN("Bad time format %lu!\n", lpParms->dwTimeFormat);
 211             LeaveCriticalSection(&wma->cs);
 212             return MCIERR_BAD_TIME_FORMAT;
 213         }
 214     }
 215
 216     if (dwFlags & MCI_SET_DOOR_OPEN) {
 217         TRACE("No support for door open !\n");
 218         LeaveCriticalSection(&wma->cs);
 219         return MCIERR_UNSUPPORTED_FUNCTION;
 220     }
 221     if (dwFlags & MCI_SET_DOOR_CLOSED) {
 222         TRACE("No support for door close !\n");
 223         LeaveCriticalSection(&wma->cs);
 224         return MCIERR_UNSUPPORTED_FUNCTION;
 225     }
 226
 227     if (dwFlags & MCI_SET_ON) {
 228         char    buffer[256];
 229
 230         strcpy(buffer, "MCI_SET_ON:");
 231
 232         if (dwFlags & MCI_SET_VIDEO) {
 233             strncat(buffer, " video", sizeof(buffer));
 234             wma->dwSet |= 4;
 235         }
 236         if (dwFlags & MCI_SET_AUDIO) {
 237             strncat(buffer, " audio", sizeof(buffer));
 238             switch (lpParms->dwAudio) {
 239             case MCI_SET_AUDIO_ALL:
 240                 strncat(buffer, " all", sizeof(buffer));
 241                 wma->dwSet |= 3;
 242                 break;
 243             case MCI_SET_AUDIO_LEFT:
 244                 strncat(buffer, " left", sizeof(buffer));
 245                 wma->dwSet |= 1;
 246                 break;
 247             case MCI_SET_AUDIO_RIGHT:
 248                 strncat(buffer, " right", sizeof(buffer));
 249                 wma->dwSet |= 2;
 250                 break;
 251             default:
 252                 WARN("Unknown audio chanel %lu\n", lpParms->dwAudio);
 253                 break;
 254             }
 255         }
 256         if (dwFlags & MCI_DGV_SET_SEEK_EXACTLY) {
 257             strncat(buffer, " seek_exactly", sizeof(buffer));
 258         }
 259         FIXME("%s\n", buffer);
 260     }
 261
 262     if (dwFlags & MCI_SET_OFF) {
 263         char    buffer[256];
 264
 265         strcpy(buffer, "MCI_SET_OFF:");
 266         if (dwFlags & MCI_SET_VIDEO) {
 267             strncat(buffer, " video", sizeof(buffer));
 268             wma->dwSet &= ~4;
 269         }
 270         if (dwFlags & MCI_SET_AUDIO) {
 271             strncat(buffer, " audio", sizeof(buffer));
 272             switch (lpParms->dwAudio) {
 273             case MCI_SET_AUDIO_ALL:
 274                 strncat(buffer, " all", sizeof(buffer));
 275                 wma->dwSet &= ~3;
 276                 break;
 277             case MCI_SET_AUDIO_LEFT:
 278                 strncat(buffer, " left", sizeof(buffer));
 279                 wma->dwSet &= ~2;
 280                 break;
 281             case MCI_SET_AUDIO_RIGHT:
 282                 strncat(buffer, " right", sizeof(buffer));
 283                 wma->dwSet &= ~2;
 284                 break;
 285             default:
 286                 WARN("Unknown audio chanel %lu\n", lpParms->dwAudio);
 287                 break;
 288             }
 289         }
 290         if (dwFlags & MCI_DGV_SET_SEEK_EXACTLY) {
 291             strncat(buffer, " seek_exactly", sizeof(buffer));
 292         }
 293         FIXME("%s\n", buffer);
 294     }
 295     if (dwFlags & MCI_DGV_SET_FILEFORMAT) {
 296         LPCSTR  str = "save";
 297         if (dwFlags & MCI_DGV_SET_STILL)
 298             str = "capture";
 299
 300         switch (lpParms->dwFileFormat) {
 301         case MCI_DGV_FF_AVI:    FIXME("Setting file format (%s) to 'AVI'\n", str);      break;
 302         case MCI_DGV_FF_AVSS:   FIXME("Setting file format (%s) to 'AVSS'\n", str);     break;
 303         case MCI_DGV_FF_DIB:    FIXME("Setting file format (%s) to 'DIB'\n", str);      break;
 304         case MCI_DGV_FF_JFIF:   FIXME("Setting file format (%s) to 'JFIF'\n", str);     break;
 305         case MCI_DGV_FF_JPEG:   FIXME("Setting file format (%s) to 'JPEG'\n", str);     break;
 306         case MCI_DGV_FF_MPEG:   FIXME("Setting file format (%s) to 'MPEG'\n", str);     break;
 307         case MCI_DGV_FF_RDIB:   FIXME("Setting file format (%s) to 'RLE DIB'\n", str);  break;
 308         case MCI_DGV_FF_RJPEG:  FIXME("Setting file format (%s) to 'RJPEG'\n", str);    break;
 309         default:                FIXME("Setting unknown file format (%s): %ld\n", str, lpParms->dwFileFormat);
 310         }
 311     }
 312
 313     if (dwFlags & MCI_DGV_SET_SPEED) {
 314         FIXME("Setting speed to %ld\n", lpParms->dwSpeed);
 315     }
 316
 317     LeaveCriticalSection(&wma->cs);
 318     return 0;
 319 }
 320
 321 /***************************************************************************
 322  *                              MCIAVI_mciStatus                        [internal]
 323  */
 324 DWORD   MCIAVI_mciStatus(UINT wDevID, DWORD dwFlags, LPMCI_DGV_STATUS_PARMSW lpParms)
 325 {
 326     WINE_MCIAVI*        wma = MCIAVI_mciGetOpenDev(wDevID);
 327     DWORD               ret = 0;
 328
 329     if (lpParms == NULL)        return MCIERR_NULL_PARAMETER_BLOCK;
 330     if (wma == NULL)            return MCIERR_INVALID_DEVICE_ID;
 331
 332     EnterCriticalSection(&wma->cs);
 333
 334     if (dwFlags & MCI_STATUS_ITEM) {
 335         switch (lpParms->dwItem) {
 336         case MCI_STATUS_CURRENT_TRACK:
 337             lpParms->dwReturn = 1;
 338             TRACE("MCI_STATUS_CURRENT_TRACK => %lu\n", lpParms->dwReturn);
 339             break;
 340         case MCI_STATUS_LENGTH:
 341             if (!wma->hFile) {
 342                 lpParms->dwReturn = 0;
 343                 LeaveCriticalSection(&wma->cs);
 344                 return MCIERR_UNSUPPORTED_FUNCTION;
 345             }
 346             /* only one track in file is currently handled, so don't take care of MCI_TRACK flag */
 347             lpParms->dwReturn = MCIAVI_ConvertFrameToTimeFormat(wma, wma->mah.dwTotalFrames, &ret);
 348             TRACE("MCI_STATUS_LENGTH => %lu\n", lpParms->dwReturn);
 349             break;
 350         case MCI_STATUS_MODE:
 351             lpParms->dwReturn = MAKEMCIRESOURCE(wma->dwStatus, wma->dwStatus);
 352             ret = MCI_RESOURCE_RETURNED;
 353            TRACE("MCI_STATUS_MODE => 0x%04x\n", LOWORD(lpParms->dwReturn));
 354             break;
 355         case MCI_STATUS_MEDIA_PRESENT:
 356             TRACE("MCI_STATUS_MEDIA_PRESENT => TRUE\n");
 357             lpParms->dwReturn = MAKEMCIRESOURCE(TRUE, MCI_TRUE);
 358             ret = MCI_RESOURCE_RETURNED;
 359             break;
 360         case MCI_STATUS_NUMBER_OF_TRACKS:
 361             lpParms->dwReturn = 1;
 362             TRACE("MCI_STATUS_NUMBER_OF_TRACKS => %lu\n", lpParms->dwReturn);
 363             break;
 364         case MCI_STATUS_POSITION:
 365             if (!wma->hFile) {
 366                 lpParms->dwReturn = 0;
 367                 LeaveCriticalSection(&wma->cs);
 368                 return MCIERR_UNSUPPORTED_FUNCTION;
 369             }
 370             /* only one track in file is currently handled, so don't take care of MCI_TRACK flag */
 371             lpParms->dwReturn = MCIAVI_ConvertFrameToTimeFormat(wma,
 372                                                              (dwFlags & MCI_STATUS_START) ? 0 : wma->dwCurrVideoFrame,
 373                                                              &ret);
 374             TRACE("MCI_STATUS_POSITION %s => %lu\n",
 375                   (dwFlags & MCI_STATUS_START) ? "start" : "current", lpParms->dwReturn);
 376             break;
 377         case MCI_STATUS_READY:
 378             lpParms->dwReturn = (wma->dwStatus == MCI_MODE_NOT_READY) ?
 379                 MAKEMCIRESOURCE(FALSE, MCI_FALSE) : MAKEMCIRESOURCE(TRUE, MCI_TRUE);
 380             ret = MCI_RESOURCE_RETURNED;
 381             TRACE("MCI_STATUS_READY = %u\n", LOWORD(lpParms->dwReturn));
 382             break;
 383         case MCI_STATUS_TIME_FORMAT:
 384             lpParms->dwReturn = MAKEMCIRESOURCE(wma->dwMciTimeFormat,
 385                                 wma->dwMciTimeFormat + MCI_FORMAT_RETURN_BASE);
 386             TRACE("MCI_STATUS_TIME_FORMAT => %u\n", LOWORD(lpParms->dwReturn));
 387             ret = MCI_RESOURCE_RETURNED;
 388             break;
 389 #if 0
 390         case MCI_AVI_STATUS_AUDIO_BREAKS:
 391         case MCI_AVI_STATUS_FRAMES_SKIPPED:
 392         case MCI_AVI_STATUS_LAST_PLAY_SPEED:
 393         case MCI_DGV_STATUS_AUDIO:
 394         case MCI_DGV_STATUS_AUDIO_INPUT:
 395         case MCI_DGV_STATUS_AUDIO_RECORD:
 396         case MCI_DGV_STATUS_AUDIO_SOURCE:
 397         case MCI_DGV_SETAUDIO_AVERAGE:
 398         case MCI_DGV_SETAUDIO_LEFT:
 399         case MCI_DGV_SETAUDIO_RIGHT:
 400         case MCI_DGV_SETAUDIO_STEREO:
 401         case MCI_DGV_STATUS_AUDIO_STREAM:
 402         case MCI_DGV_STATUS_AVGBYTESPERSEC:
 403         case MCI_DGV_STATUS_BASS:
 404         case MCI_DGV_STATUS_BITSPERPEL:
 405         case MCI_DGV_STATUS_BITSPERSAMPLE:
 406         case MCI_DGV_STATUS_BLOCKALIGN:
 407         case MCI_DGV_STATUS_BRIGHTNESS:
 408         case MCI_DGV_STATUS_COLOR:
 409         case MCI_DGV_STATUS_CONTRAST:
 410         case MCI_DGV_STATUS_FILEFORMAT:
 411         case MCI_DGV_STATUS_FILE_MODE:
 412         case MCI_DGV_STATUS_FILE_COMPLETION:
 413         case MCI_DGV_STATUS_FORWARD:
 414         case MCI_DGV_STATUS_FRAME_RATE:
 415         case MCI_DGV_STATUS_GAMMA:
 416 #endif
 417         case MCI_DGV_STATUS_HPAL:
 418             lpParms->dwReturn = 0;
 419             TRACE("MCI_DGV_STATUS_HPAL => %lx\n", lpParms->dwReturn);
 420             break;
 421         case MCI_DGV_STATUS_HWND:
 422            lpParms->dwReturn = (DWORD_PTR)wma->hWndPaint;
 423            TRACE("MCI_DGV_STATUS_HWND => %p\n", wma->hWndPaint);
 424             break;
 425 #if 0
 426         case MCI_DGV_STATUS_KEY_COLOR:
 427         case MCI_DGV_STATUS_KEY_INDEX:
 428         case MCI_DGV_STATUS_MONITOR:
 429         case MCI_DGV_MONITOR_FILE:
 430         case MCI_DGV_MONITOR_INPUT:
 431         case MCI_DGV_STATUS_MONITOR_METHOD:
 432         case MCI_DGV_STATUS_PAUSE_MODE:
 433         case MCI_DGV_STATUS_SAMPLESPERSECOND:
 434         case MCI_DGV_STATUS_SEEK_EXACTLY:
 435         case MCI_DGV_STATUS_SHARPNESS:
 436         case MCI_DGV_STATUS_SIZE:
 437         case MCI_DGV_STATUS_SMPTE:
 438         case MCI_DGV_STATUS_SPEED:
 439         case MCI_DGV_STATUS_STILL_FILEFORMAT:
 440         case MCI_DGV_STATUS_TINT:
 441         case MCI_DGV_STATUS_TREBLE:
 442         case MCI_DGV_STATUS_UNSAVED:
 443         case MCI_DGV_STATUS_VIDEO:
 444         case MCI_DGV_STATUS_VIDEO_RECORD:
 445         case MCI_DGV_STATUS_VIDEO_SOURCE:
 446         case MCI_DGV_STATUS_VIDEO_SRC_NUM:
 447         case MCI_DGV_STATUS_VIDEO_STREAM:
 448         case MCI_DGV_STATUS_VOLUME:
 449         case MCI_DGV_STATUS_WINDOW_VISIBLE:
 450         case MCI_DGV_STATUS_WINDOW_MINIMIZED:
 451         case MCI_DGV_STATUS_WINDOW_MAXIMIZED:
 452         case MCI_STATUS_MEDIA_PRESENT:
 453 #endif
 454         default:
 455             FIXME("Unknowm command %08lX !\n", lpParms->dwItem);
 456             TRACE("(%04x, %08lX, %p)\n", wDevID, dwFlags, lpParms);
 457             LeaveCriticalSection(&wma->cs);
 458             return MCIERR_UNRECOGNIZED_COMMAND;
 459         }
 460     } else {
 461         WARN("No Status-Item!\n");
 462         LeaveCriticalSection(&wma->cs);
 463         return MCIERR_UNRECOGNIZED_COMMAND;
 464     }
 465
 466     if (dwFlags & MCI_NOTIFY) {
 467         TRACE("MCI_NOTIFY_SUCCESSFUL %08lX !\n", lpParms->dwCallback);
 468         mciDriverNotify(HWND_32(LOWORD(lpParms->dwCallback)),
 469                        wDevID, MCI_NOTIFY_SUCCESSFUL);
 470     }
 471     LeaveCriticalSection(&wma->cs);
 472     return ret;
 473 }