รบกวนช่วยทำให้เป็น โค้ด VB 6.0 ให้หน่อยค่ะ ลองแล้วไม่ได้เลย ต้องปรับอย่างไรค่ะและตรงไนบ้างค่ะ

Public Function PureBW(ByVal image As System.Drawing.Bitmap, Optional ByVal Mode As BWMode = BWMode.By_Lightness, Optional ByVal tolerance As Single = 0) As System.Drawing.Bitmap
        Dim x As Integer
        Dim y As Integer
        If tolerance > 1 Or tolerance < -1 Then
            Throw New ArgumentOutOfRangeException
            Exit Function
        End If
        For x = 0 To image.Width - 1 Step 1
            For y = 0 To image.Height - 1 Step 1
                Dim clr As Color = image.GetPixel(x, y)
                If Mode = BWMode.By_RGB_Value Then
                    If (CInt(clr.R) + CInt(clr.G) + CInt(clr.B)) > 383 - (tolerance * 383) Then
                        image.SetPixel(x, y, Color.White)
                    Else
                        image.SetPixel(x, y, Color.Black)
                    End If
                Else
                    If clr.GetBrightness > 0.5 - (tolerance / 2) Then
                        image.SetPixel(x, y, Color.White)
                    Else
                        image.SetPixel(x, y, Color.Black)
                    End If
                End If
            Next
        Next
        Return image
    End Function

    Enum BWMode
        By_Lightness
        By_RGB_Value
    End Enum

Dim MinX As Integer = W : Dim MaxX As Integer = 0
Dim MinY As Integer = H : Dim MaxY As Integer = 0

Dim White As Integer = Color.White.ToArgb()
For x As Integer = 0 To W - 1
For y As Integer = 0 To H - 1
If Not Output.GetPixel(x, y).ToArgb() = White Then
MinX = Math.Min(MinX, x)
MaxX = Math.Max(MaxX, x)
MinY = Math.Min(MinY, y)
MaxY = Math.Max(MaxY, y)
End If
Next
Next

 QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
            String encoding = cboEncoding.Text ;
            if (encoding == "Byte") {
                qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
            } else if (encoding == "AlphaNumeric") {
                qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.ALPHA_NUMERIC;            
            } else if (encoding == "Numeric") {
                qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.NUMERIC;            
            }
            try {
                int scale = Convert.ToInt16(txtSize.Text);
                qrCodeEncoder.QRCodeScale = scale;
            } catch (Exception ex) {
                MessageBox.Show("Invalid size!");
                return;
            }
            try {
                int version = Convert.ToInt16(cboVersion.Text) ;
                qrCodeEncoder.QRCodeVersion = version;
            } catch (Exception ex) {
                MessageBox.Show("Invalid version !");
            }

            string errorCorrect = cboCorrectionLevel.Text;
            if (errorCorrect == "L")
                qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.L;
            else if (errorCorrect == "M")
                qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
            else if (errorCorrect == "Q")
                qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.Q;
            else if (errorCorrect == "H")
                qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.H;

            Image image;
            String data = txtEncodeData.Text;
            image = qrCodeEncoder.Encode(data);                      
            picEncode.Image = image;