## MMPM/2 Device Driver Reference

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### MCI_AUDIO_INIT Field - ulOperation

ulOperation (ULONG) Specifies the desired operation. The defined values for this field are:

    OPERATION_PLAY     0x80000001

    OPERATION_RECORD   0x80000002

    PLAY_AND_RECORD    0x80000003

    ANALYSIS           0x80000006      /* Speech Viewer/2 */

    DISTANCE           0x80000007      /* Speech Viewer/2 */

    MIGRATION          0x80000008      /* Speech Viewer/2 */

Notice that the high-order bit is set in all cases.