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#define INCL_DOSSEMAPHORES
 
USHORT DosSemClear(hsem)
HSEM hsem;    /* semaphore handle */
 
The DosSemClear function clears a system or RAM semaphore that has been set
by using the DosSemRequest, DosSemSet, or DosSemSetWait function.
 
Parameter  Description
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hsem       Identifies the semaphore to clear. This value can be the handle
           of a system semaphore that has been previously created or opened
           by using the DosCreateSem or DosOpenSem function, or it can be
           the address of a RAM semaphore.
 
Return Value
 
The return value is zero if the function is successful. Otherwise, it is an
error value, which may be the following:
 
     ERROR_EXCL_SEM_ALREADY_OWNED
 
Comments
 
The DosSemClear function cannot clear a system semaphore that is owned by
another process unless the semaphore is nonexclusive.
 
Example
 
This example uses the DosSemClear function to clear a RAM semaphore and a
system semaphore:
 
ULONG hsem = 0;
HSYSSEM hsys;
DosSemClear(&hsem);   /* clears RAM semaphore    */
DosSemClear(hsys);    /* clears system semaphore */
 
See Also
 
DosCreateSem, DosMuxSemWait, DosOpenSem, DosSemRequest, DosSemSet,
DosSemSetWait, DosSemWait
 
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