Locates the position of a string within another string.

function AnsiPosIdx(const ASubStr: AnsiString; const AStr: AnsiString; AStartPos: Cardinal = 0): Cardinal;

ANSI string values to be located.

ANSI string values to be searched.

Default value is 0.

Cardinal - Position where substring is located, or 0 when not found.

AnsiPosIdx is a Cardinal function that returns the position of a string in another string using a given starting position. ASubStr is the ANSI string to be located in AStr starting with character found in position AStartPos. AnsiPosIdx adjusts the position where ASubStr is located top account for Leading- and Trailing- byte type in multi-byte character sets.