## MMPM/2 Device Driver Reference

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### MIXERCONTROL

This structure contains fields for the VSD_QUERYMIXCONTROL and the VSD_ SETMIXCONTROL messages and the MIX_GETCONTROL and MIX_SETCONTROL IOCtls.

    typedef struct _MIXERCONTROL {

      ULONG     ulLength;   /*  Length of the structure. */

      ULONG     ulLine;     /*  Line to control. */

      ULONG     ulControl;  /*  Input. Mixer attribute to control. */

      ULONG     ulSetting;  /*  Setting for mixer attribute. */

    } MIXERCONTROL;

    typedef   MIXERCONTROL   FAR   * PMIXERCONTROL ;