Try to convert AnsiString to unsigned int.

You can find more information in comments below.

/**
    Try convert ansi string to unsigned int 
    @param str Ansi string 
    @param[out] out Reference to unsigned integer where to store result of conversion 
    @return True if conversion succeeded, otherwise - false 
    */
    bool TryAnsiToUInt(const AnsiString &str, unsigned int &out);