## Printer Device Driver

[prev][next][parent][TOC]

### GplSemOpenMutexSem

Description

This call opens a shared GPL Mutex semaphore.

Format

    APIRET APIENTRY GplSemOpenMutexSem( PMTXSEM  pmtxsem );

Parameter

pmtxsem (PMTXSEM) Address of MTXSEM structure.

Notes

When multiple processes are using a shared semaphore, then subsequent processes must open the semaphore. It is not necessary for the creating process to perform an open.

Returns

Success NO_ERROR
Failure ERROR_INVALID_PARAMETER
or return code from:
DosOpenEventSem
DosOpenMutexSem