System.Windows.Forms.HexBox.GetHexBytePositionInfo C# (CSharp) Method

        BytePositionInfo GetHexBytePositionInfo(Point p)
        {
            long bytePos;
            int byteCharaterPos;

            float x = ((float)(p.X - _recHex.X) / _charSize.Width);
            float y = ((float)(p.Y - _recHex.Y) / _charSize.Height);
            int iX = (int)x;
            int iY = (int)y;

            int hPos = (iX / 3 + 1);

            bytePos = Math.Min(_byteProvider.Length,
                _startByte + (_iHexMaxHBytes * (iY+1) - _iHexMaxHBytes) + hPos - 1);
            byteCharaterPos = (iX % 3);
            if(byteCharaterPos > 1)
                byteCharaterPos = 1;

            if(bytePos == _byteProvider.Length)
                byteCharaterPos = 0;

            if(bytePos < 0)
                return new BytePositionInfo(0, 0);
            return new BytePositionInfo(bytePos, byteCharaterPos);
        }