status.i4.v = dio_is_display_dec(device_index.i4.r, property.i2.r)

	status.i4.v = dio_is_display_dec_c(device_index.i4.v, property.i2.v)

	This function returns the default display format for a device and
	property (DI/PI).
	device_index	device index
	property	property index
			(PRREAD -> reading property,
			 PRSET -> setting property)

	This function returns status values as follows:

	DIO_BADARG		invalid property index passed
	TRUE			standard decimal notation
	FALSE			scientific notation

	This function requires the following include files:

	cnsparam_h, dbprops_h, diolib_h, acnet_errors_h

	Related functions:

	dio_is_display_short(_c), dio_scaling_len(_c),
	dio_scaling_length_list_c, dio_scaling, dio_is_controlled_set_list
	dio_is_string_property_c, dio_is_enumerated_property_c,

	C/C++ usage:

	short	property = PRSET;
	int	status;
	int	device_index = 14430;

	status = dio_is_display_dec_c(device_index,property);