C# WPF开机自启动和只允许一个程序运行

public partial class App : Application
{
System.Threading.Mutex mutex;
public App()
{
this.Startup += new StartupEventHandler(App_Startup);
this.DispatcherUnhandledException += new DispatcherUnhandledExceptionEventHandler(Application_DispatcherUnhandledException);
AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException);
}
private void App_Startup(object sender, StartupEventArgs e)
{
bool ret;
mutex = new System.Threading.Mutex(true, "TestEXEName", out ret); if (!ret)
{
MessageBox.Show("已有一个客户端正在运行,请先结束原来客户端!");
Environment.Exit();
}
#region 设置程序开机自动运行(+注册表项)
try
{
SetSelfStarting(true, "TestEXEName.exe");
}
catch (Exception ex)
{
WriteLog(ex);
} #endregion }
private void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
{
if (e.ExceptionObject is Exception)
WriteLog(e.ExceptionObject);
else
WriteLog(e);
} private void Application_DispatcherUnhandledException(object sender, DispatcherUnhandledExceptionEventArgs e)
{
if (e.Exception is Exception)
WriteLog(e.Exception);
else
WriteLog(e);
} #region 注册表开机自启动 /// <summary>
/// 开机自动启动
/// </summary>
/// <param name="started">设置开机启动，或取消开机启动</param>
/// <param name="exeName">注册表中的名称</param>
/// <returns>开启或停用是否成功</returns>
public bool SetSelfStarting(bool started, string exeName)
{
RegistryKey key = null;
try
{ string exeDir = System.Windows.Forms.Application.ExecutablePath;
//RegistryKey HKLM = Registry.CurrentUser;
//key = Registry.LocalMachine.OpenSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run", true);//打开注册表子项
key = Registry.CurrentUser.OpenSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run", true);//打开注册表子项 if (key == null)//如果该项不存在的话，则创建该子项
{
key = Registry.LocalMachine.CreateSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run");
}
if (started)
{
try
{
object ob = key.GetValue(exeName, -); if (!ob.ToString().Equals(exeDir))
{
if (!ob.ToString().Equals("-1"))
{
key.DeleteValue(exeName);//取消开机启动
}
key.SetValue(exeName, exeDir);//设置为开机启动
}
key.Close(); }
catch (Exception ex)
{
WriteLog(ex);
return false;
}
}
else
{
try
{
key.DeleteValue(exeName);//取消开机启动
key.Close();
}
catch (Exception ex)
{
WriteLog(ex);
return false;
}
}
return true;
}
catch (Exception ex)
{
WriteLog(ex);
if (key != null)
{
key.Close();
}
return false;
}
} #endregion private void WriteLog(object exception)
{
Exception ex = exception as Exception; using (FileStream fs = File.Open(".//ErrorLog.txt", FileMode.OpenOrCreate, FileAccess.ReadWrite))
{
fs.Seek(, SeekOrigin.End);
byte[] buffer = Encoding.Default.GetBytes("-------------------------------------------------------\r\n");
fs.Write(buffer, , buffer.Length); buffer = Encoding.Default.GetBytes(DateTime.Now.ToString() + "\r\n");
fs.Write(buffer, , buffer.Length); if (ex != null)
{
buffer = Encoding.Default.GetBytes("成员名: " + ex.TargetSite + "\r\n");
fs.Write(buffer, , buffer.Length); buffer = Encoding.Default.GetBytes("引发异常的类: " + ex.TargetSite.DeclaringType + "\r\n");
fs.Write(buffer, , buffer.Length); buffer = Encoding.Default.GetBytes("异常信息: " + ex.Message + "\r\n");
fs.Write(buffer, , buffer.Length); buffer = Encoding.Default.GetBytes("引发异常的程序集或对象: " + ex.Source + "\r\n");
fs.Write(buffer, , buffer.Length); buffer = Encoding.Default.GetBytes("栈：" + ex.StackTrace + "\r\n");
fs.Write(buffer, , buffer.Length);
}
else
{
buffer = Encoding.Default.GetBytes("应用程序错误: " + exception.ToString() + "\r\n");
fs.Write(buffer, , buffer.Length);
}
} }
}