## MMPM/2 Device Driver Reference

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### DDCMDSETUP

This data structure contains fields for the DDCMD_SETUP message.

    typedef struct _ddcmd_setup_parm {

      ULONG           ulFunction;       /*  Function requested by stream handler. */

      HSTREAM         hStream;          /*  Stream handle. */

      PSETUP_PARM     pSetupParm;       /*  Pointer to SETUP_PARM. */

      ULONG           ulSetupParmSize;  /*  Size of SETUP_PARM. */

    } DDCMDSETUP;