可能用到的C# WinForm技术小结

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



结束

实际开发中远不只这么多，基本上也是有一个这样的功能需求就去GOOGLE一段代码出来，还有其他如delegate和event在窗体之间使用，分屏也是简单的采用了4个Panel，当放大时就分别隐藏其他Panel等等，就不一一列举了，多查查资料就行了: )