Returns true if system encoding is not UTF-8
This is thread safe.
Converts an AnsiString in UTF8 into an AnsiString of the system encoding.
If the system encoding is UTF-8 this function does not change the string. Otherwise the widestring manager is used. This is thread safe.
Converts an AnsiString in system encoding into an AnsiString in UTF-8.
If the system encoding is UTF-8 this function does not change the string. Otherwise the widestring manager is used. This is thread safe.
Returns the number of bytes for the code point at p.
It returns 0 for nil, otherwise 1..4. Especially it returns 1 for the #0 character. This is thread safe.
Returns true if the file name exists on the file system.
It does not support globbing and mask characters like * or ? or shell specials like the ~ directory. If you do not have permission to access the directory of the file the function returns false. This is thread safe.