## Presentation Device Driver Reference for OS/2

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### SplQueryPort - Parameters

pszComputerName (PSZ) - input Name of the computer connected to the port.

This value can be NULL for a local machine.

pszPortName (PSZ) - input Name of the port to query.

ulLevel (ULONG) - input Level of information to return.

This must be 2.

pBuf (PVOID) - output Receives the PRPORTINFO2 data structure.

See PRPORTINFO2 in Data Types page=no. for details on this data structure.

cbBuf (ULONG) - input Length of buffer pointed to by pBuf, in bytes.

pcbNeeded (PULONG) - output Receives length, in bytes, of buffer needed to return all the port data.

rc (ULONG) - returns Return codes.

0 Success

ERROR_INVALID_LEVEL(124) ulLevel is not 2.

ERROR_INVALID_PARAMETER(87) An invalid parameter was specified; most likely an invalid pBuf value.

ERROR_MORE_DATA(234) Not all data could fit in pBuf.

ERROR_NOT_SUPPORTED(50) Command not supported on pszComputerName.

NERR_BufTooSmall(2123) No data could fit in pBuf.

NERR_DestNotFound(2152) The port name does not exist.