www.pudn.com > motion.zip > CaptureDeviceForm.cs

using System; 
using System.Drawing; 
using System.Collections; 
using System.ComponentModel; 
using System.Windows.Forms; 
using dshow; 
using dshow.Core; 
 
namespace motion 
{ 
	/// 
 
	/// Summary description for CaptureDeviceForm. 
	/// 
 
	public class CaptureDeviceForm : System.Windows.Forms.Form 
	{ 
		FilterCollection filters; 
		private System.Windows.Forms.Label label1; 
		private System.Windows.Forms.ComboBox deviceCombo; 
		private System.Windows.Forms.Button cancelButton; 
		private System.Windows.Forms.Button okButton; 
		private string device; 
 
		/// 
 
		/// Required designer variable. 
		/// 
 
		private System.ComponentModel.Container components = null; 
 
		// Device 
		public string Device 
		{ 
			get { return device; } 
		} 
 
		// Constructor 
		public 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; 
		} 
 
		/// 
 
		/// Clean up any resources being used. 
		/// 
 
		protected override void Dispose( bool disposing ) 
		{ 
			if( disposing ) 
			{ 
				if(components != null) 
				{ 
					components.Dispose(); 
				} 
			} 
			base.Dispose( disposing ); 
		} 
 
		#region Windows Form Designer generated code 
		/// 
 
		/// Required method for Designer support - do not modify 
		/// the contents of this method with the code editor. 
		/// 
 
		private void InitializeComponent() 
		{ 
			this.label1 = 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.SuspendLayout(); 
			//  
			// label1 
			//  
			this.label1.Location = new System.Drawing.Point(10, 10); 
			this.label1.Name = "label1"; 
			this.label1.Size = new System.Drawing.Size(156, 14); 
			this.label1.TabIndex = 0; 
			this.label1.Text = "Select capture device:"; 
			//  
			// deviceCombo 
			//  
			this.deviceCombo.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList; 
			this.deviceCombo.Location = new System.Drawing.Point(10, 30); 
			this.deviceCombo.Name = "deviceCombo"; 
			this.deviceCombo.Size = new System.Drawing.Size(325, 21); 
			this.deviceCombo.TabIndex = 6; 
			//  
			// cancelButton 
			//  
			this.cancelButton.DialogResult = System.Windows.Forms.DialogResult.Cancel; 
			this.cancelButton.FlatStyle = System.Windows.Forms.FlatStyle.Flat; 
			this.cancelButton.Location = new System.Drawing.Point(180, 78); 
			this.cancelButton.Name = "cancelButton"; 
			this.cancelButton.TabIndex = 9; 
			this.cancelButton.Text = "Cancel"; 
			//  
			// okButton 
			//  
			this.okButton.DialogResult = System.Windows.Forms.DialogResult.OK; 
			this.okButton.FlatStyle = System.Windows.Forms.FlatStyle.Flat; 
			this.okButton.Location = new System.Drawing.Point(90, 78); 
			this.okButton.Name = "okButton"; 
			this.okButton.TabIndex = 8; 
			this.okButton.Text = "Ok"; 
			this.okButton.Click += new System.EventHandler(this.okButton_Click); 
			//  
			// CaptureDeviceForm 
			//  
			this.AcceptButton = this.okButton; 
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13); 
			this.CancelButton = this.cancelButton; 
			this.ClientSize = new System.Drawing.Size(344, 113); 
			this.Controls.AddRange(new System.Windows.Forms.Control[] { 
																		  this.cancelButton, 
																		  this.okButton, 
																		  this.deviceCombo, 
																		  this.label1}); 
			this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedToolWindow; 
			this.MaximizeBox = false; 
			this.MinimizeBox = false; 
			this.Name = "CaptureDeviceForm"; 
			this.ShowInTaskbar = false; 
			this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent; 
			this.Text = "Open Local Capture Device"; 
			this.ResumeLayout(false); 
 
		} 
		#endregion 
 
		// On "Ok" button 
		private void okButton_Click(object sender, System.EventArgs e) 
		{ 
			device = filters[deviceCombo.SelectedIndex].MonikerString; 
		} 
	} 
}