is_valid.i4.v = dio_is_possible_device_name_c(string.i1a.r

	This routine determines if a string has the proper format and
	characters for an ACNET device name.

	string		  string to test
	[length]	  string length
			  (If a value of 0 is passed for this argument,
			   the routine will determine the length of the string.)
			  (default is 0)
	[allow_full_name] allow full device names
			  (TRUE -> allow full device names,
			   FALSE -> don't allow full device names (default))
	[allow_index]	  allow device index names
			  (TRUE -> allow device index names (0:nnnnnnn),
			   FALSE -> don't allow device index names (default))

	This function returns status values as follows:

	TRUE			string is a possible device name
	FALSE			string is not a possible device name

	This function requires the following include files:

	cnsparam_h, diolib_h

	Related functions:

	dio_is_valid_device_name_first_char_c, dio_prefix_char_to_property_c,
	dio_device_index(_c), dio_dev_name(_c), dio_parse_long_device_name_c,
	dio_name_to_index, dio_is_old_name_c, dio_find_name_c

	C/C++ usage:

	static const char	string[] = "I:XXXX";
	int	is_possible;
	int	length = 0;
	int	allow_index = FALSE;
	int	allow_full_name = TRUE;

	is_possible = dio_is_possible_device_name_c(string,length,allow_index,