Returns information about a named-pipe handle.

#define INCL_DOSNMPIPES
#include <os2.h>

HPIPE     hpipe;   /*  The named-pipe handle to query. */
PULONG    pState;  /*  A pointer to the named-pipe handle state. */
APIRET    ulrc;    /*  Return Code. */

ulrc = DosQueryNPHState(hpipe, pState);