Opens an event semaphore.
#define INCL_DOSSEMAPHORES #include <os2.h> PSZ pszName; /* A pointer to the ASCIIZ name of the semaphore to open. */ PHEV phev; /* A pointer to the event-semaphore handle. */ APIRET ulrc; /* Return Code. */ ulrc = DosOpenEventSem(pszName, phev);