How to change the resolution of the video stream in C#

using System;
using System.Windows.Forms;
using Ozeki.Camera;
using Ozeki.Media;

namespace Camera_Viewer_Connect_USB_WF
{
    public partial class MainForm : Form
    {
        private OzekiCamera _camera;
        private DrawingImageProvider _imageProvider;
        private MediaConnector _mediaConnector;
        private CameraURLBuilderWF _myCameraUrlBuilder;
        private VideoResizer _resizeHandler;


        public MainForm()
        {
            InitializeComponent();
            _imageProvider = new DrawingImageProvider();
            _mediaConnector = new MediaConnector();
            _resizeHandler = new VideoResizer();
            
            _myCameraUrlBuilder = new CameraURLBuilderWF();


            videoViewerWF1.SetImageProvider(_imageProvider);
        }

        private void btn_Connect_Click(object sender, EventArgs e)
        {
            if (_camera != null)
            {
                videoViewerWF1.Stop();
                _camera.Stop();
                _mediaConnector.Disconnect(_camera.VideoChannel, _resizeHandler);
                _mediaConnector.Disconnect(_resizeHandler, _imageProvider);
                _camera.Dispose();
            }
            btn_Connect.Enabled = false;

            _camera = new OzekiCamera(_myCameraUrlBuilder.CameraURL);

            _camera.CameraStateChanged += _webCamera_CameraStateChanged;

            _mediaConnector.Connect(_camera.VideoChannel, _resizeHandler);
            _mediaConnector.Connect(_resizeHandler, _imageProvider);

            _camera.Start();

            videoViewerWF1.Start();
        }

        void _webCamera_CameraStateChanged(object sender, CameraStateEventArgs e)
        {
            InvokeGuiThread(() =>
            {
                switch (e.State)
                {
                    case CameraState.Streaming:
                        btn_Disconnect.Enabled = true;
                        break;
                    case CameraState.Disconnected:
                        btn_Disconnect.Enabled = false;
                        btn_Connect.Enabled = true;
                        break;
                }
            });
        }
        
        private void btn_Disconnect_Click(object sender, EventArgs e)
        {
            videoViewerWF1.Stop();
            _camera.Stop();
            _mediaConnector.Disconnect(_camera.VideoChannel, _imageProvider);
            
        }

        private void btn_Compose_Click(object sender, EventArgs e)
        {
            var result = _myCameraUrlBuilder.ShowDialog();

            if(result != DialogResult.OK)
                return;

            cameraUrlBox.Text = _myCameraUrlBuilder.CameraURL;

            btn_Connect.Enabled = true;
        }

        private void btn_resize_Click(object sender, EventArgs e)
        {
            try
            {

                if (!String.IsNullOrEmpty(resizeWidthBox.Text) && (!String.IsNullOrEmpty(resizeHeightBox.Text)))
                    _resizeHandler.SetResolution(Int32.Parse(this.resizeWidthBox.Text), Int32.Parse(this.resizeHeightBox.Text));
                else
                    MessageBox.Show("The height or width field is blank!");

            }
            catch (FormatException ex)
            {
                MessageBox.Show("The height or width value is not valid!");
            }
        }

        private void InvokeGuiThread(Action action)
        {
            BeginInvoke(action);
        }


    }

namespace Camera_Viewer_Connect_USB_WF
{
    partial class MainForm
    {
        private System.ComponentModel.IContainer components = null;

        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        private void InitializeComponent()
        {
            this.components = new System.ComponentModel.Container();
            this.btn_Compose = new System.Windows.Forms.Button();
            this.videoViewerWF1 = new Ozeki.Media.VideoViewerWF();
            this.connectGroupBox = new System.Windows.Forms.GroupBox();
            this.btn_Disconnect = new System.Windows.Forms.Button();
            this.btn_Connect = new System.Windows.Forms.Button();
            this.cameraUrlBox = new System.Windows.Forms.TextBox();
            this.urlLabel = new System.Windows.Forms.Label();
            this.bnt_resize = new System.Windows.Forms.Button();
            this.resizeGroupBox = new System.Windows.Forms.GroupBox();
            this.widtLabel = new System.Windows.Forms.Label();
            this.resizeHeightBox = new System.Windows.Forms.TextBox();
            this.resizeWidthBox = new System.Windows.Forms.TextBox();
            this.heightLabel = new System.Windows.Forms.Label();
            this.connectGroupBox.SuspendLayout();
            this.resizeGroupBox.SuspendLayout();
            this.SuspendLayout();
            // 
            // btn_Compose
            // 
            this.btn_Compose.Location = new System.Drawing.Point(238, 15);
            this.btn_Compose.Name = "btn_Compose";
            this.btn_Compose.Size = new System.Drawing.Size(75, 23);
            this.btn_Compose.TabIndex = 1;
            this.btn_Compose.Text = "Compose";
            this.btn_Compose.UseVisualStyleBackColor = true;
            this.btn_Compose.Click += new System.EventHandler(this.btn_Compose_Click);
            // 
            // videoViewerWF1
            // 
            this.videoViewerWF1.BackColor = System.Drawing.Color.Black;
            this.videoViewerWF1.FlipMode = Ozeki.Media.FlipMode.None;
            this.videoViewerWF1.FrameStretch = Ozeki.Media.FrameStretch.Uniform;
            this.videoViewerWF1.FullScreenEnabled = true;
            this.videoViewerWF1.Location = new System.Drawing.Point(12, 100);
            this.videoViewerWF1.Name = "videoViewerWF1";
            this.videoViewerWF1.RotateAngle = 0;
            this.videoViewerWF1.Size = new System.Drawing.Size(320, 240);
            this.videoViewerWF1.TabIndex = 2;
            this.videoViewerWF1.Text = "videoViewerWF1";
            // 
            // connectGroupBox
            // 
            this.connectGroupBox.Controls.Add(this.btn_Disconnect);
            this.connectGroupBox.Controls.Add(this.btn_Connect);
            this.connectGroupBox.Controls.Add(this.cameraUrlBox);
            this.connectGroupBox.Controls.Add(this.urlLabel);
            this.connectGroupBox.Controls.Add(this.btn_Compose);
            this.connectGroupBox.Location = new System.Drawing.Point(12, 12);
            this.connectGroupBox.Name = "connectGroupBox";
            this.connectGroupBox.Size = new System.Drawing.Size(320, 82);
            this.connectGroupBox.TabIndex = 3;
            this.connectGroupBox.TabStop = false;
            this.connectGroupBox.Text = "Connect";
            // 
            // btn_Disconnect
            // 
            this.btn_Disconnect.Enabled = false;
            this.btn_Disconnect.Location = new System.Drawing.Point(157, 43);
            this.btn_Disconnect.Name = "btn_Disconnect";
            this.btn_Disconnect.Size = new System.Drawing.Size(75, 23);
            this.btn_Disconnect.TabIndex = 5;
            this.btn_Disconnect.Text = "Disconnect";
            this.btn_Disconnect.UseVisualStyleBackColor = true;
            this.btn_Disconnect.Click += new System.EventHandler(this.btn_Disconnect_Click);
            // 
            // btn_Connect
            // 
            this.btn_Connect.Enabled = false;
            this.btn_Connect.Location = new System.Drawing.Point(73, 43);
            this.btn_Connect.Name = "btn_Connect";
            this.btn_Connect.Size = new System.Drawing.Size(75, 23);
            this.btn_Connect.TabIndex = 4;
            this.btn_Connect.Text = "Connect";
            this.btn_Connect.UseVisualStyleBackColor = true;
            this.btn_Connect.Click += new System.EventHandler(this.btn_Connect_Click);
            // 
            // cameraUrlBox
            // 
            this.cameraUrlBox.Location = new System.Drawing.Point(73, 17);
            this.cameraUrlBox.Name = "cameraUrlBox";
            this.cameraUrlBox.Size = new System.Drawing.Size(159, 20);
            this.cameraUrlBox.TabIndex = 3;
            // 
            // urlLabel
            // 
            this.urlLabel.AutoSize = true;
            this.urlLabel.Location = new System.Drawing.Point(5, 20);
            this.urlLabel.Name = "urlLabel";
            this.urlLabel.Size = new System.Drawing.Size(71, 13);
            this.urlLabel.TabIndex = 2;
            this.urlLabel.Text = "Camera URL:";
            // 
            // bnt_resize
            // 
            this.bnt_resize.Location = new System.Drawing.Point(8, 33);
            this.bnt_resize.Name = "bnt_resize";
            this.bnt_resize.Size = new System.Drawing.Size(75, 23);
            this.bnt_resize.TabIndex = 4;
            this.bnt_resize.Text = "Resize";
            this.bnt_resize.UseVisualStyleBackColor = true;
            this.bnt_resize.Click += new System.EventHandler(this.btn_resize_Click);
            // 
            // resizeGroupBox
            // 
            this.resizeGroupBox.Controls.Add(this.heightLabel);
            this.resizeGroupBox.Controls.Add(this.widtLabel);
            this.resizeGroupBox.Controls.Add(this.resizeHeightBox);
            this.resizeGroupBox.Controls.Add(this.resizeWidthBox);
            this.resizeGroupBox.Controls.Add(this.bnt_resize);
            this.resizeGroupBox.Location = new System.Drawing.Point(12, 346);
            this.resizeGroupBox.Name = "resizeGroupBox";
            this.resizeGroupBox.Size = new System.Drawing.Size(320, 65);
            this.resizeGroupBox.TabIndex = 5;
            this.resizeGroupBox.TabStop = false;
            this.resizeGroupBox.Text = "Resize";
            // 
            // widtLabel
            // 
            this.widtLabel.AutoSize = true;
            this.widtLabel.Location = new System.Drawing.Point(136, 20);
            this.widtLabel.Name = "widtLabel";
            this.widtLabel.Size = new System.Drawing.Size(35, 13);
            this.widtLabel.TabIndex = 7;
            this.widtLabel.Text = "Width";
            // 
            // resize_height_box
            // 
            this.resizeHeightBox.Location = new System.Drawing.Point(206, 35);
            this.resizeHeightBox.Name = "resizeHeightBox";
            this.resizeHeightBox.Size = new System.Drawing.Size(64, 20);
            this.resizeHeightBox.TabIndex = 6;
            // 
            // resize_width_box
            // 
            this.resizeWidthBox.Location = new System.Drawing.Point(121, 36);
            this.resizeWidthBox.Name = "resizeWidthBox";
            this.resizeWidthBox.Size = new System.Drawing.Size(64, 20);
            this.resizeWidthBox.TabIndex = 5;
            // 
            // heightLabel
            // 
            this.heightLabel.AutoSize = true;
            this.heightLabel.Location = new System.Drawing.Point(219, 19);
            this.heightLabel.Name = "heightLabel";
            this.heightLabel.Size = new System.Drawing.Size(38, 13);
            this.heightLabel.TabIndex = 8;
            this.heightLabel.Text = "Height";
            // 
            // MainForm
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(348, 414);
            this.Controls.Add(this.resizeGroupBox);
            this.Controls.Add(this.connectGroupBox);
            this.Controls.Add(this.videoViewerWF1);
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
            this.MaximizeBox = false;
            this.Name = "MainForm";
            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
            this.Text = "USB Camera\'s Live Image";
            this.connectGroupBox.ResumeLayout(false);
            this.connectGroupBox.PerformLayout();
            this.resizeGroupBox.ResumeLayout(false);
            this.resizeGroupBox.PerformLayout();
            this.ResumeLayout(false);

        }

        private System.Windows.Forms.Button btn_Compose;
        private Ozeki.Media.VideoViewerWF videoViewerWF1;
        private System.Windows.Forms.GroupBox connectGroupBox;
        private System.Windows.Forms.TextBox cameraUrlBox;
        private System.Windows.Forms.Label urlLabel;
        private System.Windows.Forms.Button btn_Disconnect;
        private System.Windows.Forms.Button btn_Connect;
        private System.Windows.Forms.Button bnt_resize;
        private System.Windows.Forms.GroupBox resizeGroupBox;
        private System.Windows.Forms.Label widtLabel;
        private System.Windows.Forms.TextBox resizeHeightBox;
        private System.Windows.Forms.TextBox resizeWidthBox;
        private System.Windows.Forms.Label heightLabel;
    }
}