Intelligent Screen Saver

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using dshow;
using dshow.Core;

namespace Gui
{
	/// <summary>
	/// Summary description for CaptureDeviceForm.
	/// </summary>
	internal class CaptureDeviceForm : System.Windows.Forms.Form 
	{
		FilterCollection filters;
		private System.Windows.Forms.ComboBox deviceCombo;
		private System.Windows.Forms.Button cancelButton;
		private System.Windows.Forms.Button okButton;
		private string device;
		private System.Windows.Forms.Label lblCapture;
		private System.Windows.Forms.Panel panel1;
		private System.Windows.Forms.PictureBox pictureBox1;

		/// <summary>
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;

		// Device
		internal string Device
		{
			get { return device; }
		}

		// Constructor
		internal CaptureDeviceForm()
		{
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();

			//
			try
			{
				filters = new FilterCollection(FilterCategory.VideoInputDevice);

				if (filters.Count == 0)
					throw new ApplicationException();

				// add all devices to combo
				foreach (Filter filter in filters)
				{
					deviceCombo.Items.Add(filter.Name);
				}
			}
			catch (ApplicationException)
			{
				deviceCombo.Items.Add("No local capture devices");
				deviceCombo.Enabled = false;
				okButton.Enabled = false;
			}

			deviceCombo.SelectedIndex = 0;
		}

		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if(components != null)
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(CaptureDeviceForm));
			this.lblCapture = new System.Windows.Forms.Label();
			this.deviceCombo = new System.Windows.Forms.ComboBox();
			this.cancelButton = new System.Windows.Forms.Button();
			this.okButton = new System.Windows.Forms.Button();
			this.panel1 = new System.Windows.Forms.Panel();
			this.pictureBox1 = new System.Windows.Forms.PictureBox();
			this.panel1.SuspendLayout();
			this.SuspendLayout();
			// 
			// lblCapture
			// 
			this.lblCapture.Font = new System.Drawing.Font("Tahoma", 9.75F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.lblCapture.Location = new System.Drawing.Point(56, 8);
			this.lblCapture.Name = "lblCapture";
			this.lblCapture.Size = new System.Drawing.Size(248, 31);
			this.lblCapture.TabIndex = 0;
			this.lblCapture.Text = "Please select a local capture device.";
			this.lblCapture.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
			// 
			// deviceCombo
			// 
			this.deviceCombo.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
			this.deviceCombo.Location = new System.Drawing.Point(8, 56);
			this.deviceCombo.Name = "deviceCombo";
			this.deviceCombo.Size = new System.Drawing.Size(296, 21);
			this.deviceCombo.TabIndex = 6;
			// 
			// cancelButton
			// 
			this.cancelButton.DialogResult = System.Windows.Forms.DialogResult.Cancel;
			this.cancelButton.FlatStyle = System.Windows.Forms.FlatStyle.System;
			this.cancelButton.Location = new System.Drawing.Point(232, 90);
			this.cancelButton.Name = "cancelButton";
			this.cancelButton.Size = new System.Drawing.Size(72, 23);
			this.cancelButton.TabIndex = 9;
			this.cancelButton.Text = "Cancel";
			// 
			// okButton
			// 
			this.okButton.DialogResult = System.Windows.Forms.DialogResult.OK;
			this.okButton.FlatStyle = System.Windows.Forms.FlatStyle.System;
			this.okButton.Location = new System.Drawing.Point(144, 90);
			this.okButton.Name = "okButton";
			this.okButton.Size = new System.Drawing.Size(75, 24);
			this.okButton.TabIndex = 8;
			this.okButton.Text = "Ok";
			this.okButton.Click += new System.EventHandler(this.okButton_Click);
			// 
			// panel1
			// 
			this.panel1.BackColor = System.Drawing.Color.White;
			this.panel1.Controls.Add(this.pictureBox1);
			this.panel1.Controls.Add(this.lblCapture);
			this.panel1.Location = new System.Drawing.Point(0, 0);
			this.panel1.Name = "panel1";
			this.panel1.Size = new System.Drawing.Size(312, 46);
			this.panel1.TabIndex = 10;
			// 
			// pictureBox1
			// 
			this.pictureBox1.Image = ((System.Drawing.Image)(resources.GetObject("pictureBox1.Image")));
			this.pictureBox1.Location = new System.Drawing.Point(8, 8);
			this.pictureBox1.Name = "pictureBox1";
			this.pictureBox1.Size = new System.Drawing.Size(44, 32);
			this.pictureBox1.TabIndex = 0;
			this.pictureBox1.TabStop = false;
			// 
			// CaptureDeviceForm
			// 
			this.AcceptButton = this.okButton;
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
			this.CancelButton = this.cancelButton;
			this.ClientSize = new System.Drawing.Size(312, 119);
			this.Controls.Add(this.panel1);
			this.Controls.Add(this.cancelButton);
			this.Controls.Add(this.okButton);
			this.Controls.Add(this.deviceCombo);
			this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
			this.MaximizeBox = false;
			this.MinimizeBox = false;
			this.Name = "CaptureDeviceForm";
			this.ShowInTaskbar = false;
			this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
			this.Text = "Open Local Capture Device";
			this.Load += new System.EventHandler(this.CaptureDeviceForm_Load);
			this.panel1.ResumeLayout(false);
			this.ResumeLayout(false);

		}
		#endregion

		// On "Ok" button
		private void okButton_Click(object sender, System.EventArgs e)
		{
			device = filters[deviceCombo.SelectedIndex].MonikerString;
		}

		private void CaptureDeviceForm_Load(object sender, System.EventArgs e)
		{
		
		}
	}
}