protected override void OnStartup(StartupEventArgs e)
{
_instanceMutex = new Mutex(true, MutexName);
if (CommandLine.Default.Updated)
{
if (!_instanceMutex.WaitOne(60000)) // 60s to close the previous instance
{
MessageBox.Show("WindowManager was unabled to restart", "WindowManager", MessageBoxButton.OK);
Environment.Exit(0);
}
}
else
{
if (!_instanceMutex.WaitOne(0))
{
// Another instance is already started.
// Send a message to show the main window
try
{
IpcChannel channel = new IpcChannel("Client");
ChannelServices.RegisterChannel(channel, false);
SingleInstance app =
(SingleInstance)
Activator.GetObject(typeof(SingleInstance), string.Format("ipc://{0}/RemotingServer", Name));
if (e.Args.Length == 0)
{
app.Execute(null);
}
else
{
app.Execute(e.Args);
}
}
catch (Exception ex)
{
Trace.WriteLine(ex.ToString());
}
Environment.Exit(0);
}
}
try
{
RegisterIpcServer();
}
catch (Exception ex)
{
Trace.WriteLine(ex.ToString());
}
base.OnStartup(e);
}
static void Main(string[] args)
{
using (var mutex = new Mutex(false, AppId))
{
if (!mutex.WaitOne(0))
{
// 2nd instance
// Send the command line to the first instance
IpcChannel clientChannel = new IpcChannel();
ChannelServices.RegisterChannel(clientChannel, false);
SingleInstance app = (SingleInstance)Activator.GetObject(typeof(SingleInstance), string.Format("ipc://{0}/RemotingServer", AppId));
app.Execute(args);
return;
}
// 1st instance
// Register the IPC server
IpcChannel channel = new IpcChannel(AppId);
ChannelServices.RegisterChannel(channel, false);
RemotingConfiguration.RegisterWellKnownServiceType(typeof(SingleInstance), "RemotingServer", WellKnownObjectMode.Singleton);
// Start the application
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Form1());
}
}