SysUtils.ByteToCharLen Function

Returns the number of characters fully contained in the first MaxLen bytes of a string.

Pascal

function ByteToCharLen(const S: string; MaxLen: Integer): Integer;

C++

int ByteToCharLen(const AnsiString S, int MaxLen);

File

SysUtils

Description

Call ByteToCharLen to determine the number of characters represented by a portion of a string. ByteToCharLen counts characters until it reaches MaxLen bytes or the end of the string, whichever comes first.

When working with multi-byte character systems (MBCS), the value returned by ByteToCharLen may be less than MaxLen or the length of the string.

Note: ByteToCharLen will count a partial character if it appears as the last of the first MaxLen bytes.