mainform.cs

摄像头编程

using System;
using System.Drawing;
using System.Collections;
using System.Windows.Forms;
using System.Data;

using Cowburn.Imaging;

namespace CamCaptureSP
{
	/// <summary>
	/// Summary description for MainForm.
	/// </summary>
	public class MainForm : System.Windows.Forms.Form
	{
		private System.Windows.Forms.MenuItem menuItem1;
		private System.Windows.Forms.MainMenu mainMenu1;
		private System.Windows.Forms.MenuItem menuItem3;
		private System.Windows.Forms.PictureBox camImage;
		
		// Create a field for the HtcCamera instance.
		private Cowburn.Imaging.HtcCamera camera;
			
		public MainForm()
		{
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();

			// 
			// Create an new instance of the HtcCamera class
			// and hook up the CaptureCompleted event hander;
			//
			camera = new HtcCamera();
			camera.CaptureCompleted += new CameraEventHandler(Form1_CaptureCompleted);
		}

		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			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()
		{
			this.mainMenu1 = new System.Windows.Forms.MainMenu();
			this.menuItem1 = new System.Windows.Forms.MenuItem();
			this.menuItem3 = new System.Windows.Forms.MenuItem();
			this.camImage = new System.Windows.Forms.PictureBox();
			// 
			// mainMenu1
			// 
			this.mainMenu1.MenuItems.Add(this.menuItem1);
			this.mainMenu1.MenuItems.Add(this.menuItem3);
			// 
			// menuItem1
			// 
			this.menuItem1.Text = "Done";
			this.menuItem1.Click += new System.EventHandler(this.menuItem1_Click);
			// 
			// menuItem3
			// 
			this.menuItem3.Text = "Get Image";
			this.menuItem3.Click += new System.EventHandler(this.menuItem3_Click);
			// 
			// camImage
			// 
			this.camImage.Location = new System.Drawing.Point(8, 32);
			this.camImage.Size = new System.Drawing.Size(160, 120);
			// 
			// MainForm
			// 
			this.BackColor = System.Drawing.Color.Silver;
			this.Controls.Add(this.camImage);
			this.Menu = this.mainMenu1;
			this.Text = "Cam Capture";

		}
		#endregion

		/// <summary>
		/// The main entry point for the application.
		/// </summary>

		static void Main(string[] args) 
		{
			Application.Run(new MainForm());
		}

		private void menuItem1_Click(object sender, System.EventArgs e)
		{
			Application.Exit();
		}

		private void menuItem3_Click(object sender, System.EventArgs e)
		{
			// Change the resolution from the default (VGA) to QVGA
			camera.Resolution = Resolution.VGA;
			// Make a call to the camera to go ahead with the capture\
			camera.Capture(string.Empty, CaptureType.File);
		}

		private void Form1_CaptureCompleted(object sender, CameraEventArgs e)
		{
			if(e.Path != string.Empty)
			{
				Bitmap image = new Bitmap(e.Path);
				
				// Create a white canvas to paint the image onto
				Bitmap tmp = new Bitmap(camImage.Width,camImage.Height);
				Graphics g = Graphics.FromImage(tmp);
				g.FillRectangle(new SolidBrush(Color.White),new Rectangle(0,0,tmp.Width, tmp.Height));

				// Resize the captured image to fit the picturebox control
				g.DrawImage(image,new Rectangle(0,0,tmp.Width,tmp.Height),new Rectangle(0,0,image.Width,image.Height),GraphicsUnit.Pixel);

				camImage.Image = tmp;
			}
		}
	}
}