Retrieves the post count for an event semaphore.
#define INCL_DOSSEMAPHORES #include <os2.h> HEV hev; /* The handle of the event semaphore to query. */ PULONG pulPostCt; /* A pointer to the semaphore's post count. */ APIRET ulrc; /* Return Code. */ ulrc = DosQueryEventSem(hev, pulPostCt);