ulrc (APIRET) - returns

Return Code.

DosSetFileLocks returns one of the following values:

• NO_ERROR
  
• ERROR_INVALID_FUNCTION
  
• ERROR_INVALID_HANDLE
  33
  ERROR_LOCK_VIOLATION
  36
  ERROR_SHARING_BUFFER_EXCEEDED
  87
  ERROR_INVALID_PARAMETER
  95
  ERROR_INTERRUPT
  174
  ERROR_ATOMIC_LOCK_NOT_SUPPORTED
  175
  ERROR_READ_LOCKS_NOT_SUPPORTED
  For a full list of error codes, see Errors.