This function returns a list of stream protocol keys for the specified stream handler.
#include <os2.h>
HID hid; /* Stream handler ID. */
PVOID paSPCBKeys; /* SPCB keys address. */
PULONG pulNumSPCBKeys; /* Number of entries. */
ULONG rc; /* Return codes. Return codes indicating success or the type of failure: */
rc = SpiEnumerateProtocols(hid, paSPCBKeys,
pulNumSPCBKeys);