PRTPORT

Information about BIDI capabilities of the port, returned by the BIDI_Q_PORT command.

If the ulpszProtocol parameter in the PRTPORT data structure is returned, it will be used as the protocol converter for the given printer. If ulpszProtocol is null and ulBidiType bit 0 is clear, the spooler will attempt to fill in the protocol based on the ulpszDeviceID returned by the port driver.

 typedef struct _PRTPORT { ULONG  flBidiCapabilities; /* Defines printer capabilities of the port. */ ULONG   flBidiProtocol;     /* BIDI software protocol types supported. */ ULONG   ulPortType;         /* Medium used to communicate with the printer. */ ULONG   ulpszProtocol;      /* Offset to the name of the default BIDI protocol to be used for this printer. */ ULONG   ulpszDeviceID;      /* Device identifier returned by the printer hardware, as defined by the P1284 specification. */ ULONG   ulBidiLevel;        /* Version level of the protocol type being used. */ ULONG   flPrinterStatus;    /* Current status of the attached printer. */ ULONG   ulAdapterLevel;     /* Level of protocol used by the adapter. */ ULONG   ulMaxSendSize;      /* Port driver's maximum send packet size for messages or                                 data to the printer. */ ULONG   ulMaxReceiveSize;   /* Port driver's maximum receive packet size for messages from the printer. */ ULONG   ulMaxHeldResponses; /* Maximum number of printer messages held, waiting for BIDI_WAIT_ALERT to read them. */ } PRTPORT;

typedef PRTPORT *PPRTPORT; 