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Upcase - convert a char value to upper case system unit

function UpCase ( Letter : Char ) : Char; Description The UpCase function converts a single Letter character to upper case. It only works on the standard 'a'..'z' letters. It returns Letter unchanged if already upper case or non alphabetic. Notes Warning : this command is restricted to single characters, and does not handle International characters. Better to use AnsiupperCase instead. Related commands AnsiLowerCase Change upper case characters in a string to lower case AnsiUpperCase Change lower case characters in a string to upper case Example code : Convert g to G var lower, upper : char; begin // Convert a lower case letter to upper case lower := 'g'; upper := UpCase(lower); // Display these letters ShowMessage('lower = '+lower+' upper = '+upper); end; Show full unit code lower = g upper = G