IMPL_EVCB

This structure describes an implicit event. A pointer to this data structure is passed in an SpiCreateStream call. It must be initialized to 0 for this call. Implicit events are reported using this data structure. The application media control device must support notification of these events. These events are enabled implicitly at stream creation and cannot be disabled.

typedef struct _IMPL_EVCB {
  ULONG       ulType;     /*  Event type. */
  ULONG       ulSubType;  /*  Event subtype. */
  ULONG       ulFlags;    /*  Flags. */
  HSTREAM     hStream;    /*  Stream handle. */
  HID         hid;        /*  Stream handler ID. */
  ULONG       ulStatus;   /*  Event status. */
  ULONG       unused1;    /*  Not used. */
  ULONG       unused2;    /*  Not used. */
  ULONG       unused3;    /*  Not used. */
} IMPL_EVCB;

typedef   IMPL _ EVCB   FAR   * PIMPL _ EVCB ;