C# 视频监控系列(15)：总结贴——可能用到的C# WinForm技术小结

本文概述了信息技术领域的核心代码实现与应用案例，包括IntPtr转换、读写INI文件、获取网卡号、板卡序列化、全屏显示视频窗口等功能，以及相关代码片段解析。此外，还涉及了IP地址验证、无符号整数验证等实用技巧。

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正文

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?)$");
         }
         /// <summary>
         /// 是否是无符号整数(正数)
         /// </summary>
         /// <param name="value"></param>
         /// <returns></returns>
         public bool IsUInt(string value)
         {
             return Regex.IsMatch(value, @"^\d*$");
         } 
   
 