using System.Management;

namespace zhucema
{
    class SoftReg
    {
        // 取得设备硬盘的卷标号
        public string GetDiskVolumeSerialNumber()
        {
            ManagementClass mc = new ManagementClass('Win32_NetworkAdapterConfiguration');
            ManagementObject disk = new ManagementObject('win32_logicaldisk.deviceid=\'d:\'');
            disk.Get();
            return disk.GetPropertyValue('VolumeSerialNumber').ToString();
        }
        //获得CPU的序列号
 

近日心血来潮，研究了下控制摄像头，老实说原理很简单，想深入又是那么的难。话不多说上代码，再留下点疑问，就是这么把视频的流文件截取下来。

using System.Runtime.InteropServices;
using System.Drawing.Imaging;
using System.Net;
using System.Net.Sockets;
using System.Threading;
namespace mycamera
{
    public partial class Form1 : Form
    {
        //定义常量
        private const int WM_USER = 0x400;
        private const int WS_CHILD = 0x40000000;
        private const int WS_VISIBLE = 0x10000000;
        private const int WM_CAP_START = WM_USER;
        private const int WM_CAP_STOP = WM_CAP_START + 68;
        private c