Multimedia operations, which can involve working with files and physical devices, are inherently error-prone. To handle multimedia errors, you can use the Error and ErrorMessages properties. The multimedia control errors returned in the Error property and the error string IDs returned in the ErrorMessages property appear in Table 22.1.
Table 22.1 The multimedia control errors and error string IDs.
| MCI Error Strings
| MCI Error Numbers
|
| MCIERR_BASE
| 256
|
| MCIERR_INVALID_DEVICE_ID
| 257
|
| MCIERR_UNRECOGNIZED_KEYWORD
| 259
|
| MCIERR_UNRECOGNIZED_COMMAND
| 261
|
| MCIERR_HARDWARE
| 262
|
| MCIERR_INVALID_DEVICE_NAME
| 263
|
| MCIERR_OUT_OF_MEMORY
| 264
|
| MCIERR_DEVICE_OPEN
| 265
|
| MCIERR_CANNOT_LOAD_DRIVER
| 266
|
| MCIERR_MISSING_COMMAND_STRING
| 267
|
| MCIERR_PARAM_OVERFLOW
| 268
|
| MCIERR_MISSING_STRING_ARGUMENT
| 269
|
| MCIERR_BAD_INTEGER
| 270
|
| MCIERR_PARSER_INTERNAL
| 271
|
| MCIERR_DRIVER_INTERNAL
| 272
|
| MCIERR_MISSING_PARAMETER
| 273
|
| MCIERR_UNSUPPORTED_FUNCTION
| 274
|
| MCIERR_FILE_NOT_FOUND
| 275
|
| MCIERR_DEVICE_NOT_READY
| 276
|
| MCIERR_INTERNAL
| 277
|
| MCIERR_DRIVER
| 278
|
| MCIERR_CANNOT_USE_ALL
| 279
|
| MCIERR_MULTIPLE
| 280
|
| MCIERR_EXTENSION_NOT_FOUND
| 281
|
| MCIERR_OUTOFRANGE
| 282
|
| MCIERR_FLAGS_NOT_COMPATIBLE
| 283
|
| MCIERR_FILE_NOT_SAVED
| 286
|
| MCIERR_DEVICE_TYPE_REQUIRED
| 287
|
| MCIERR_DEVICE_LOCKED
| 288
|
| MCIERR_DUPLICATE_ALIAS
| 289
|
| MCIERR_BAD_CONSTANT
| 290
|
| MCIERR_MUST_USE_SHAREABLE
| 291
|
| MCIERR_MISSING_DEVICE_NAME
| 292
|
| MCIERR_BAD_TIME_FORMAT
| 293
|
| MCIERR_NO_CLOSING_QUOTE
| 294
|
| MCIERR_DUPLICATE_FLAGS
| 295
|
| MCIERR_INVALID_FILE
| 296
|
| MCIERR_NULL_PARAMETER_BLOCK
| 297
|
| MCIERR_UNNAMED_RESOURCE
| 298
|
| MCIERR_NEW_REQUIRES_ALIAS
| 299
|
| MCIERR_NOTIFY_ON_AUTO_OPEN
| 300
|
| MCIERR_NO_ELEMENT_ALLOWED
| 301
|
| MCIERR_NONAPPLICABLE_FUNCTION
| 302
|
| MCIERR_ILLEGAL_FOR_AUTO_OPEN
| 303
|
| MCIERR_FILENAME_REQUIRED
| 304
|
| MCIERR_EXTRA_CHARACTERS
| 305
|
| MCIERR_DEVICE_NOT_INSTALLED
| 306
|
| MCIERR_GET_CD
| 307
|
| MCIERR_SET_CD
| 308
|
| MCIERR_SET_DRIVE
| 309
|
| MCIERR_DEVICE_LENGTH
| 310
|
| MCIERR_DEVICE_ORD_LENGTH
| 311
|
| MCIERR_NO_INTEGER
| 312
|
| MCIERR_WAVE_OUTPUTSINUSE
| 320
|
| MCIERR_WAVE_SETOUTPUTINUSE
| 321
|
| MCIERR_WAVE_INPUTSINUSE
| 323
|
| MCIERR_WAVE_SETINPUTINUSE
| 324
|
| MCIERR_WAVE_OUTPUTUNSPECIFIED
| 325
|
| MCIERR_WAVE_INPUTUNSPECIFIED
| 326
|
| MCIERR_WAVE_OUTPUTSUNSUITABLE
| 327
|
| MCIERR_WAVE_SETOUTPUTUNSUITABLE
| 328
|
| MCIERR_WAVE_INPUTSUNSUITABLE
| 329
|
| MCIERR_WAVE_SETINPUTUNSUITABLE
| 336
|
| MCIERR_SEQ_DIV_INCOMPATIBLE
| 336
|
| MCIERR_SEQ_PORT_INUSE
| 337
|
| MCIERR_SEQ_PORT_NONEXISTENT
| 338
|
| MCIERR_SEQ_PORT_MAPNODEVICE
| 339
|
| MCIERR_SEQ_PORT_MISCERROR
| 340
|
| MCIERR_SEQ_TIMER
| 341
|
| MCIERR_SEQ_PORTUNSPECIFIED
| 342
|
| MCIERR_SEQ_NOMIDIPRESENT
| 343
|
| MCIERR_NO_WINDOW
| 346
|
| MCIERR_CREATEWINDOW
| 347
|
| MCIERR_FILE_READ
| 348
|
| MCIERR_FILE_WRITE
| 349
|
| MCIERR_CUSTOM_DRIVER_BASE
| 512
|
In addition, the multimedia control supports several trappable errors (which you can use with the Visual Basic On Error GoTo statement). These appear in Table 22.2.
