Examines the data in a named pipe without removing it.

#define INCL_DOSNMPIPES
#include <os2.h>

HPIPE         hpipe;      /*  The named-pipe handle to examine. */
PVOID         pBuf;       /*  A pointer to the output buffer. */
ULONG         cbBuf;      /*  The number of bytes to be read. */
PULONG        pcbActual;  /*  A pointer a ULONG in which the number of bytes that were read is returned. */
PAVAILDATA    pAvail;     /*  A pointer to the AVAILDATA in which the number of bytes that were available is returned. */
PULONG        pState;     /*  A pointer to the ULONG in which the state of the named pipe is returned. */
APIRET        ulrc;       /*  Return Code. */

ulrc = DosPeekNPipe(hpipe, pBuf, cbBuf, pcbActual,
         pAvail, pState);