returns the char associated with this character position. If it's an InputPositionBase derivative (character placeholder), it will return the character that the user has input, or 0 if it's empty For LiteralPosition and derivatives, it will return the literal character that will be used in storing the text (if one of the DataMaskModes is to include literals) set will only work if IsEditable returns true, otherwise it will throw an exception
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
