pszName (PSZ) - input

A pointer to the ASCIIZ name of the semaphore to open.

This field is null if the semaphore is either an unnamed, shared event semaphore or a private event semaphore (private semaphores are always unnamed). An unnamed event semaphore is identified by the pointer to the event semaphore handle (phev). If this field is not null, then the semaphore is a named shared semaphore, and phev must be set to zero.

phev (PHEV) - in/out

A pointer to the event-semaphore handle.

Input

A pointer to the event-semaphore handle to open if pszName is null. If pszName is not null, set phev to zero.
Output
A pointer to the event-semaphore handle that was opened.

ulrc (APIRET) - returns

Return Code.

DosOpenEventSem returns one of the following values:

• NO_ERROR 6
  ERROR_INVALID_HANDLE
  8
  ERROR_NOT_ENOUGH_MEMORY
  87
  ERROR_INVALID_PARAMETER
  123
  INVALID_NAME
  187
  ERROR_SEM_NOT_FOUND
  291
  ERROR_TOO_MANY_OPENS
  For a full list of error codes, see Errors.

---

[Back] [Next]