Embarcadero Delphi Strings Chars
Example
2009
uses
Character;
var
C1, C2: Char;
begin
C1 := 'F';
C2 := ToLower(C1); // Convert the char to lower-case
C1 := ToUpper(C2); // Convert the char to upper-case
The uses clause should be System.Character if version is XE2 or above.
