VARGRAPHIC scalar function converts a character string to a graphic string. Each SBCS character in the source will be converted to its corresponding DBCS character; for example, SBCS alphabet A will be converted to DBCS alphabet A. If a corresponding DBCS character does not exist, the SBCS character will be converted to the DBCS substitution character. Such SBCS characters include control codes, unassigned code points and invalid code points. DBCS characters will be copied to the target without any conversion. As for the DBCS substitution character, see TrnsDt