This structure contains information used on an MMIOM_STATUS message.
typedef struct _MMIO_STATUS_PARMS { HWND hwndWindow; /* Window handle. */ ULONG ulReturn; /* Return information. */ ULONG ulItem; /* Status item. */ ULONG ulValue; /* Status value. */ ULONG ulType; /* Format. */ } MMIO_STATUS_PARMS; typedef MMIO _ STATUS _ PARMS * PMMIO _ STATUS _ PARMS ;