public static ApplicationMutex ApplicationMutex(
this Assembly assembly, Action shutdown = null, Process mainProcess = null)
{
var applicationInstanceId = assembly.GetApplicationInstanceId();
var mutex = ApplicationMutexes.CreateOrExisting(applicationInstanceId);
var applicationMutex = new ApplicationMutex(applicationInstanceId, mutex);
if (!applicationMutex.IsAlreadyRunning)
{
return(applicationMutex);
}
if (mainProcess == null)
{
mainProcess = Process.GetCurrentProcess();
}
var otherApplicationInstance = FindSingleInstanceProcess(mainProcess);
if (otherApplicationInstance == null)
{
return(applicationMutex.AsSingle());
}
var handle = otherApplicationInstance.MainWindowHandle.ToInt32();
WindowsHelper.ForceForegroundWindow(handle);
if (shutdown != null)
{
shutdown();
}
return(applicationMutex);
}
public void Dispose()
{
ApplicationMutexes.Remove(this);
mutex.Dispose();
}