System.Character.TCharHelper.IsDefined
Delphi
function IsDefined: Boolean; overload;
class function IsDefined(const S: string; Index: Integer): Boolean; overload; static;
class function IsDefined(C: UCS4Char): Boolean; overload; static;
Properties
Type | Visibility | Source | Unit | Parent |
---|---|---|---|---|
function | public | System.Character.pas | System.Character | TCharHelper |
Description
Determines whether the UTF-16 character is defined in the Unicode specifications.
This method has 3 different signatures:
- No parameters needed. Returns
True
if the UTF-16 character is defined in the Unicode specifications. - Returns
True
if the character atIndex
in stringS
is defined in the Unicode specifications. - Returns
True
if theUCS4Char
is defined in the Unicode specifications.