c# 调用摄像头，截图

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Drawing.Imaging;
using System.Net;
using System.Net.Sockets;
using System.Threading;
//Download by http://www.codefans.net
namespace camera
{

    //Socket tmpClient = null;
    public partial class CameraForm : Form
    {
        private int hHwnd;
        private const int port = 2000;
        public CameraForm（）
        {
            InitializeComponent（）;
        }
        public struct videohdr_tag
        {
            public byte[] lpData;
            public int dwBufferLength;
            public int dwBytesUsed;
            public int dwTim

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件       3244  2009-03-19 11:03  camera\Backup\camera\camera.csproj

     文件        249  2009-03-19 11:04  camera\Backup\camera\camera.csproj.user

     文件       5027  2009-05-26 18:32  camera\Backup\camera\CameraForm.cs

     文件       5933  2009-05-26 18:32  camera\Backup\camera\CameraForm.Designer.cs

     文件      18690  2009-03-19 11:10  camera\Backup\camera\CameraForm.resx

     文件        507  2009-05-26 18:32  camera\Backup\camera\Program.cs

     文件       1209  2009-05-26 18:32  camera\Backup\camera\Properties\AssemblyInfo.cs

     文件       2903  2009-05-26 18:32  camera\Backup\camera\Properties\Resources.Designer.cs

     文件       5612  2009-03-19 10:59  camera\Backup\camera\Properties\Resources.resx

     文件       1089  2009-03-19 10:59  camera\Backup\camera\Properties\Settings.Designer.cs

     文件        249  2009-03-19 10:59  camera\Backup\camera\Properties\Settings.settings

     文件        907  2009-03-19 10:59  camera\Backup\camera.sln

     文件      16384  2009-05-26 18:33  camera\Backup\camera.suo

     文件      20992  2010-03-02 09:32  camera\camera\bin\Debug\camera.exe

     文件      30208  2010-03-02 09:32  camera\camera\bin\Debug\camera.pdb

     文件       3452  2010-01-23 18:33  camera\camera\camera.csproj

     文件        249  2010-01-23 18:33  camera\camera\camera.csproj.user

     文件       9164  2010-03-02 09:32  camera\camera\obj\Debug\camera.CameraForm.resources

     文件       1572  2010-03-02 09:30  camera\camera\obj\Debug\camera.csproj.FileListAbsolute.txt

     文件      20992  2010-03-02 09:32  camera\camera\obj\Debug\camera.exe

     文件      30208  2010-03-02 09:32  camera\camera\obj\Debug\camera.pdb

     文件        180  2010-01-23 18:33  camera\camera\obj\Debug\camera.Properties.Resources.resources

     文件       4608  2010-01-23 21:16  camera\camera\obj\Debug\TempPE\Properties.Resources.Designer.cs.dll

     文件        852  2010-03-02 09:32  camera\camera\obj\Debug\camera.csproj.GenerateResource.Cache

     文件        507  2009-05-26 18:32  camera\camera\Program.cs

     文件       1209  2009-05-26 18:32  camera\camera\Properties\AssemblyInfo.cs

     文件       2836  2010-01-23 18:33  camera\camera\Properties\Resources.Designer.cs

     文件       5612  2009-03-19 10:59  camera\camera\Properties\Resources.resx

     文件       1104  2010-01-23 18:33  camera\camera\Properties\Settings.Designer.cs

     文件        249  2009-03-19 10:59  camera\camera\Properties\Settings.settings

............此处省略26个文件信息