public void DisplayExistingUI()
{
var thisProcess = Process.GetCurrentProcess();
var processes = Process.GetProcessesByName(thisProcess.ProcessName).Where(p => p.Id != thisProcess.Id);
foreach (Process runningProcess in processes)
{
foreach (var handle in WindowHelpers.EnumerateProcessWindowHandles(runningProcess.Id))
{
// Send window show.
WindowHelpers.SendMessage(handle, (uint)WindowMessages.SHOWWINDOW, 9, 0);
}
}
}
public static void Main(string[] args)
{
try
{
if (Process.GetCurrentProcess().SessionId <= 0)
{
try
{
LoggerUtil.GetAppWideLogger().Error("GUI client started in session 0 isolation. Exiting. This should not happen.");
Environment.Exit((int)ExitCodes.ShutdownWithoutSafeguards);
return;
}
catch (Exception e)
{
// XXX TODO - We can't really log here unless we do a direct to-file write.
Environment.Exit((int)ExitCodes.ShutdownWithoutSafeguards);
return;
}
}
}
catch
{
// Lets assume that if we can't even read our session ID, that we're in session 0.
Environment.Exit((int)ExitCodes.ShutdownWithoutSafeguards);
return;
}
try
{
string appVerStr = System.Diagnostics.Process.GetCurrentProcess().ProcessName;
System.Reflection.Assembly assembly = System.Reflection.Assembly.GetExecutingAssembly();
appVerStr += "." + System.Reflection.AssemblyName.GetAssemblyName(assembly.Location).Version.ToString();
bool createdNew;
try
{
InstanceMutex = new Mutex(true, string.Format(@"Local\{0}", GuidUtility.Create(GuidUtility.DnsNamespace, appVerStr).ToString("B")), out createdNew);
}
catch
{
// We can get access denied if SYSTEM is running this.
createdNew = false;
}
if (!createdNew)
{
try
{
var thisProcess = Process.GetCurrentProcess();
var processes = Process.GetProcessesByName(thisProcess.ProcessName).Where(p => p.Id != thisProcess.Id);
foreach (Process runningProcess in processes)
{
foreach (var handle in WindowHelpers.EnumerateProcessWindowHandles(runningProcess.Id))
{
// Send window show.
WindowHelpers.SendMessage(handle, (uint)WindowMessages.SHOWWINDOW, 9, 0);
}
}
}
catch (Exception e)
{
LoggerUtil.RecursivelyLogException(LoggerUtil.GetAppWideLogger(), e);
}
// In case we have some out of sync state where the app is running at a higher
// privilege level than us, the app won't get our messages. So, let's attempt an
// IPC named pipe to deliver the message as well.
try
{
using (var ipcClient = new IPCClient())
{
ipcClient.RequestPrimaryClientShowUI();
// Wait plenty of time before dispose to allow delivery of the msg.
Task.Delay(500).Wait();
}
}
catch (Exception e)
{
// The only way we got here is if the server isn't running, in which case we
// can do nothing because its beyond our domain.
LoggerUtil.RecursivelyLogException(LoggerUtil.GetAppWideLogger(), e);
}
// Close this instance.
Environment.Exit(-1);
return;
}
}
catch (Exception e)
{
// The only way we got here is if the server isn't running, in which case we can do
// nothing because its beyond our domain.
LoggerUtil.RecursivelyLogException(LoggerUtil.GetAppWideLogger(), e);
return;
}
try
{
MainLogger = LoggerUtil.GetAppWideLogger();
}
catch { }
try
{
var app = new CitadelApp();
app.InitializeComponent();
app.Run();
// Always release mutex.
InstanceMutex.ReleaseMutex();
}
catch (Exception e)
{
try
{
MainLogger = LoggerUtil.GetAppWideLogger();
LoggerUtil.RecursivelyLogException(MainLogger, e);
}
catch (Exception be)
{
// XXX TODO - We can't really log here unless we do a direct to-file write.
}
}
// No matter what, always ensure that critical flags are removed from our process before exiting.
CriticalKernelProcessUtility.SetMyProcessAsNonKernelCritical();
}