Hi Faizal,

Check this example. Now please take its reference and correct your code.

First Download the dll from the below link and add its reference in your project.

http://www.mediafire.com/?dxrnc433pfrp7mu

Form Design

I have added two PictureBox controls in the Form and 7 Button controls.

Class File

C#

using WebCam_Capture;

namespace _WebCam_PictureBox
{
    class WebCam
    {
        private WebCamCapture webcam;
        private System.Windows.Forms.PictureBox _FrameImage;
        private int FrameNumber = 30;
        public void InitializeWebCam(ref System.Windows.Forms.PictureBox ImageControl)
        {
            webcam = new WebCamCapture();
            webcam.FrameNumber = ((ulong)(0ul));
            webcam.TimeToCapture_milliseconds = FrameNumber;
            webcam.ImageCaptured += new WebCamCapture.WebCamEventHandler(webcam_ImageCaptured);
            _FrameImage = ImageControl;
        }

        void webcam_ImageCaptured(object source, WebcamEventArgs e)
        {
            _FrameImage.Image = e.WebCamImage;
        }

        public void Start()
        {
            webcam.TimeToCapture_milliseconds = FrameNumber;
            webcam.Start(0);
        }

        public void Stop()
        {
            webcam.Stop();
        }

        public void Continue()
        {
            // change the capture time frame.
            webcam.TimeToCapture_milliseconds = FrameNumber;

            // resume the video capture from the stop.
            webcam.Start(this.webcam.FrameNumber);
        }

        public void ResolutionSetting()
        {
            webcam.Config();
        }

        public void AdvanceSetting()
        {
            webcam.Config2();
        }
    }
}

VB.Net

Imports WebCam_Capture

Class WebCam
    Private webcam As WebCamCapture
    Private _FrameImage As System.Windows.Forms.PictureBox
    Private FrameNumber As Integer = 30

    Public Sub InitializeWebCam(ByRef ImageControl As System.Windows.Forms.PictureBox)
        webcam = New WebCamCapture()
        webcam.FrameNumber = (CULng((0UL)))
        webcam.TimeToCapture_milliseconds = FrameNumber
        AddHandler webcam.ImageCaptured, AddressOf webcam_ImageCaptured
        _FrameImage = ImageControl
    End Sub

    Private Sub webcam_ImageCaptured(ByVal source As Object, ByVal e As WebcamEventArgs)
        _FrameImage.Image = e.WebCamImage
    End Sub

    Public Sub Start()
        webcam.TimeToCapture_milliseconds = FrameNumber
        webcam.Start(0)
    End Sub

    Public Sub [Stop]()
        webcam.[Stop]()
    End Sub

    Public Sub [Continue]()
        webcam.TimeToCapture_milliseconds = FrameNumber
        webcam.Start(Me.webcam.FrameNumber)
    End Sub

    Public Sub ResolutionSetting()
        webcam.Config()
    End Sub

    Public Sub AdvanceSetting()
        webcam.Config2()
    End Sub
End Class

Code

C#

using System;
using System.Drawing;
using System.IO;
using System.Windows.Forms;

namespace _WebCam_PictureBox
{
    public partial class mainWinForm : Form
    {
        public mainWinForm()
        {
            InitializeComponent();
        }
        WebCam webcam;
        private void mainWinForm_Load(object sender, EventArgs e)
        {
            webcam = new WebCam();
            webcam.InitializeWebCam(ref imgVideo);
        }

        private void bntStart_Click(object sender, EventArgs e)
        {
            webcam.Start();
        }

        private void bntStop_Click(object sender, EventArgs e)
        {
            webcam.Stop();
        }

        private void bntContinue_Click(object sender, EventArgs e)
        {
            webcam.Continue();
        }

        private void bntCapture_Click(object sender, EventArgs e)
        {
            imgCapture.Image = imgVideo.Image;
        }

        private void bntSave_Click(object sender, EventArgs e)
        {
            SaveImageCapture(imgCapture.Image);
        }

        private void bntVideoFormat_Click(object sender, EventArgs e)
        {
            webcam.ResolutionSetting();
        }

        private void bntVideoSource_Click(object sender, EventArgs e)
        {
            webcam.AdvanceSetting();
        }

        public static void SaveImageCapture(System.Drawing.Image image)
        {
            SaveFileDialog s = new SaveFileDialog();
            s.FileName = "Image";
            s.DefaultExt = ".Jpg";
            s.Filter = "Image (.jpg)|*.jpg";

            // Save Image in Project Folder.
            string filePath = Path.GetDirectoryName(Application.ExecutablePath) + @"\File\";
            if (!Directory.Exists(filePath))
            {
                Directory.CreateDirectory(filePath);
            }
            string filename = filePath + "Image.jpg";
            FileStream fstream = new FileStream(filename, FileMode.Create);
            image.Save(fstream, System.Drawing.Imaging.ImageFormat.Jpeg);
            fstream.Close();

            // Add waterMark Text.
            using (Bitmap bmp = new Bitmap(filename, false))
            {
                using (Graphics grp = Graphics.FromImage(bmp))
                {
                    //Set the Color of the Watermark text.
                    Brush brush = new SolidBrush(Color.White);

                    //Set the Font and its size.
                    Font font = new System.Drawing.Font("Arial", 30, FontStyle.Bold, GraphicsUnit.Pixel);

                    //Determine the size of the Watermark text.
                    SizeF textSize = new SizeF();
                    textSize = grp.MeasureString("@ASPSnippets.com", font);

                    //Position the text and draw it on the image.
                    Point position = new Point((bmp.Width - ((int)textSize.Width + 10)), (bmp.Height - ((int)textSize.Height + 10)));
                    grp.DrawString("@ASPSnippets.com", font, brush, position);
                }

                // Show save file dialog box.
                if (s.ShowDialog() == DialogResult.OK)
                {
                    // Save Image.
                    bmp.Save(s.FileName);
                }
            }


            // Delete Directory.
            if (Directory.Exists(filePath))
            {
                Directory.Delete(filePath, true);
            }
        }
    }
}

VB.Net

Imports System.IO

Public Class Form1
    Dim webcam As WebCam
    Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
        webcam = New WebCam()
        webcam.InitializeWebCam(imgVideo)
    End Sub

    Private Sub bntStart_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnStart.Click
        webcam.Start()
    End Sub

    Private Sub bntStop_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnStop.Click
        webcam.[Stop]()
    End Sub

    Private Sub bntContinue_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnContinue.Click
        webcam.[Continue]()
    End Sub

    Private Sub bntCapture_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnCapture.Click
        imgCapture.Image = imgVideo.Image
    End Sub

    Private Sub bntSave_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnSave.Click
        SaveImageCapture(imgCapture.Image)
    End Sub

    Private Sub bntVideoFormat_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnVideoFormat.Click
        webcam.ResolutionSetting()
    End Sub

    Private Sub bntVideoSource_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnVideoSource.Click
        webcam.AdvanceSetting()
    End Sub

    Public Shared Sub SaveImageCapture(ByVal image As System.Drawing.Image)
        Dim s As SaveFileDialog = New SaveFileDialog()
        s.FileName = "Image"
        s.DefaultExt = ".Jpg"
        s.Filter = "Image (.jpg)|*.jpg"
        Dim filePath As String = Path.GetDirectoryName(Application.ExecutablePath) & "\File\"

        If Not Directory.Exists(filePath) Then
            Directory.CreateDirectory(filePath)
        End If

        Dim filename As String = filePath & "Image.jpg"
        Dim fstream As FileStream = New FileStream(filename, FileMode.Create)
        image.Save(fstream, System.Drawing.Imaging.ImageFormat.Jpeg)
        fstream.Close()

        Using bmp As Bitmap = New Bitmap(filename, False)
            Using grp As Graphics = Graphics.FromImage(bmp)
                Dim brush As Brush = New SolidBrush(Color.White)
                Dim font As Font = New System.Drawing.Font("Arial", 30, FontStyle.Bold, GraphicsUnit.Pixel)
                Dim textSize As SizeF = New SizeF()
                textSize = grp.MeasureString("@ASPSnippets.com", font)
                Dim position As Point = New Point((bmp.Width - (CInt(textSize.Width) + 10)), (bmp.Height - (CInt(textSize.Height) + 10)))
                grp.DrawString("@ASPSnippets.com", font, brush, position)
            End Using
            If s.ShowDialog() = DialogResult.OK Then
                bmp.Save(s.FileName)
            End If
        End Using

        If Directory.Exists(filePath) Then
            Directory.Delete(filePath, True)
        End If
    End Sub
End Class