hsem (HSEM) - input

      The handle of a shared event or muxwait semaphore that was previously attached to one or more named pipes with DosSetNPipeSem.

    pnpss (PPIPESEMSTATE) - output

      A pointer to a buffer containing a record for each named pipe that is attached to the semaphore.

    cbBuf (ULONG) - input

      The size, in bytes, of pnpss.

    ulrc (APIRET) - returns

      Return Code.

      DosQueryNPipeSemState returns one of the following values:

    • NO_ERROR 87
        ERROR_INVALID_PARAMETER
      111
        ERROR_BUFFER_OVERFLOW
      For a full list of error codes, see Errors.

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