## MMPM/2 Device Driver Reference

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### MIXERLINEINFO

This structure contains fields for the VSD_QUERYMIXLINE message and the MIX _GETLINEINFO IOCtl.

    typedef struct _MIXERLINEINFO {

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

      ULONG     ulNumChannels;          /*  Output. Number of channels. */

      ULONG     ulSupport;              /*  Output. Supported mixer attributes. */

      ULONG     ulConnectionsPossible;  /*  Output. Possible connections. */

      ULONG     ulLine;                 /*  Input. The line to query. */

    } MIXERLINEINFO;

    typedef   MIXERLINEINFO   FAR   * PMIXERLINEINFO ;