ulrc (APIRET) - returns

Return Code.

DosDevIOCtl returns one of the following values:

• NO_ERROR
  
• ERROR_INVALID_FUNCTION
  
• ERROR_INVALID_HANDLE
  15
  ERROR_INVALID_DRIVE
  31
  ERROR_GEN_FAILURE
  87
  ERROR_INVALID_PARAMETER
  111
  ERROR_BUFFER_OVERFLOW
  115
  ERROR_PROTECTION_VIOLATION
  117
  ERROR_INVALID_CATEGORY
  119
  ERROR_BAD_DRIVER_LEVEL
  163
  ERROR_UNCERTAIN_MEDIA
  165
  ERROR_MONITORS_NOT_SUPPORTED
  For a full list of error codes, see Errors.