1. IntPtr转换成byte[]
public byte [] ConvertToBytes(IntPtr dataBuf, int length) { byte [] byteBuf = new byte [length]; Marshal.Copy(dataBuf, byteBuf, 0 , length); return byteBuf; } 2. 读写INI文件
一般用于读写配置文件
/// <summary> /// 读写INI文件 /// </summary> public class IniFile { /// <summary> /// 文件INI名称 /// </summary> public string Path; /// <summary> /// 声明读写INI文件的API函数 /// </summary> /// <param name="section"></param> /// <param name="key"></param> /// <param name="val"></param> /// <param name="filePath"></param> /// <returns></returns> [DllImport( " kernel32 " )] private static extern long WritePrivateProfileString( string section, string key, string val, string filePath); [DllImport( " kernel32 " )] private static extern int GetPrivateProfileString( string section, string key, string def, StringBuilder retVal, int size, string filePath); /// <summary> /// 类的构造函数，传递INI文件名 /// </summary> /// <param name="inipath"></param> public IniFile( string inipath) { // // TODO: Add constructor logic here // Path = inipath; } /// <summary> /// 写INI文件 /// </summary> /// <param name="Section"></param> /// <param name="Key"></param> /// <param name="Value"></param> public void IniWriteValue( string Section, string Key, string Value) { WritePrivateProfileString(Section, Key, Value, this .Path); } /// <summary> /// 读取INI文件指定 /// </summary> /// <param name="Section"></param> /// <param name="Key"></param> /// <returns></returns> public string IniReadValue( string Section, string Key) { StringBuilder temp = new StringBuilder( 5000 ); int i = GetPrivateProfileString(Section, Key, "" , temp, 5000 , this .Path); return temp.ToString(); } } 3. 获取网卡号
可用于软件加密
/// <summary> /// 获得网卡号 /// </summary> /// <returns></returns> public static string GetNetCardMacAddress() { ManagementClass mc = new ManagementClass( " Win32_NetworkAdapterConfiguration " ); ManagementObjectCollection moc = mc.GetInstances(); string str = "" ; foreach (ManagementObject mo in moc) { if (( bool )mo[ " IPEnabled " ] == true ) str = mo[ " MacAddress " ].ToString(); } return str; } 4. 获取采集卡序列化
可用于软件加密绑定，注意结构体DS_BOARD_DETAIL.sn是16位的，但是实际只有12位，VC++源码也只取了12位，后门都是0。
/// <summary> /// 获取板卡序号 /// </summary> /// <returns></returns> public static string GetBoardSN() { uint boardCount = HikVisionSDK.GetBoardCount(); StringBuilder sn = new StringBuilder(); for ( uint i = 0 ; i < boardCount; ) { DS_BOARD_DETAIL boardDetail = new DS_BOARD_DETAIL(); HikVisionSDK.GetBoardDetail(i, ref boardDetail); for ( int j = 0 ; j < 12 ; j ++ ) { sn.Append(( char )(boardDetail.sn[j] + 0x30 )); } break ; } return sn.ToString(); } 5. 全屏显示视频窗口
/// <summary> /// 全屏 /// </summary> /// <param name="tsmFullScreen"> 右键 </param> /// <param name="pVideo"> 显示视频的窗口 </param> /// <param name="cs"> 视频连接成功返回的值 </param> private void FullScreen(ToolStripMenuItem tsmFullScreen, Panel pVideo, int cs) { if ( this .WindowState == System.Windows.Forms.FormWindowState.Maximized) { tsmFullScreen.Text = " 全屏窗口 " ; this .FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle; this .WindowState = System.Windows.Forms.FormWindowState.Normal; this .TopMost = false ; pVideo.Width = pre_Width; pVideo.Height = pre_Height; pVideo.Top = pre_Top; pVideo.Left = pre_Left; // 隐藏其他控件 HideOtherControls(pVideo, true ); minPanel(pVideo, cs); } else { tsmFullScreen.Text = " 关闭全屏 " ; this .FormBorderStyle = System.Windows.Forms.FormBorderStyle.None; this .WindowState = System.Windows.Forms.FormWindowState.Maximized; this .TopMost = true ; pre_Width = pVideo.Width; pre_Height = pVideo.Height; pre_Top = pVideo.Top; pre_Left = pVideo.Left; pVideo.Width = this .Width; pVideo.Height = this .Height; pVideo.Top = 0 ; pVideo.Left = 0 ; // 显示其他控件 HideOtherControls(pVideo, false ); } } 6. 其他代码
// 判断是不是IP地址 public bool IsIPAddress( string ip) { return Regex.IsMatch(ip, @" ^((2[0-4]\d|25[0-5]|[01]?\d\d?)\.){3}(2[0-4]\d|25[0-5]|[01]?\d\d?)$ " ); } /// <summary> /// 是否是无符号整数(正数) /// </summary> /// <param name="value"></param> /// <returns></returns> public bool IsUInt( string value) { return Regex.IsMatch(value, @" ^\d*$ " ); } 本文转自博客园农民伯伯的博客，原文链接：，如需转载请自行联系原博主。