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Alias for TCharacter.IsLetter
Source position: character.pas line 168
| function IsLetter( | 
| AChar: UnicodeChar | 
| ):Boolean; overload; | 
| const AString: UnicodeString; | 
| AIndex: Integer | 
| ):Boolean; overload; | 
| AChar | 
 | UTF16 Character | 
True if the indicated characters is a letter.
| AString | 
 | String containing UTF-16 encoded characters | 
| AIndex | 
 | Index of UTF16 encoded character in AString to be checked. | 
IsLetter is a shortcut for TCharacter.IsLetter
| 
 | Check if a unicode character is a letter. |