rc (ULONG) - returns
This function returns the same codes as DosOpen:
ERROR_ACCESS_DENIED
ERROR_CANNOT_MAKE
ERROR_DEVICE_IN_USE
ERROR_DISK_FULL
ERROR_DRIVE_LOCKED
ERROR_FILE_NOT_FOUND
ERROR_FILENAME_EXCED_RANGE
ERROR_INVALID_ACCESS
ERROR_INVALID_PARAMETER
ERROR_NOT_DOS_DISK
ERROR_OPEN_FAILED
ERROR_PATH_NOT_FOUND
ERROR_PIPE_BUSY
ERROR_SHARING_BUFFER_EXCEEDED
ERROR_SHARING_VIOLATION
ERROR_TOO_MANY_OPEN_FILES
NO_ERROR