## MMPM/2 Device Driver Reference

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### DDCMD_STATUS - Syntax

This message requests status from the device.

pParmIn (PDDCMDSTATUS) A pointer to a DDCMDSTATUS data structure. The pStatus and ulStatusSize fields refer to the STATUS_PARM data structure.

rc (ULONG) Error code indicating success or the type of failure:

NO_ERROR Success.

ERROR_INVALID_FUNCTION Illegal function requested.

ERROR_INVALID_STREAM Invalid stream handle.

FAILURE Device-driver-specific error return code.