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using System;
using System.Diagnostics;
using System.Drawing;
using System.Threading;
using System.Windows;
using System.Windows.Forms;
using mRemoteNG.Properties;
using mRemoteNG.UI.Forms;
namespace mRemoteNG.App
{
public static class ProgramRoot
{
private static Mutex _mutex;
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
public static void Main(string[] args)
{
if (Properties.OptionsStartupExitPage.Default.SingleInstance)
StartApplicationAsSingleInstance();
else
StartApplication();
}
private static void StartApplication()
{
CatchAllUnhandledExceptions();
System.Windows.Forms.Application.EnableVisualStyles();
System.Windows.Forms.Application.SetCompatibleTextRenderingDefault(false);
var frmSplashScreen = FrmSplashScreenNew.GetInstance();
Screen targetScreen = (Screen.AllScreens.Length > 1) ? Screen.AllScreens[1] : Screen.AllScreens[0];
Rectangle viewport = targetScreen.WorkingArea;
frmSplashScreen.Top = viewport.Top;
frmSplashScreen.Left = viewport.Left;
//mainWindow.Show();
Screen[] screens = Screen.AllScreens;
//if (screens.Length > 1)
//{
// normaly it should be screens[1] however due DPI apply 1 size "same" as default with 100%
frmSplashScreen.Left = viewport.Left + (targetScreen.Bounds.Size.Width / 2) - (frmSplashScreen.Width / 2);
frmSplashScreen.Top = viewport.Top + (targetScreen.Bounds.Size.Height / 2) - (frmSplashScreen.Height / 2);
//frmSplashScreen.Top = 50;
//}
//frmSplashScreen.Show();
frmSplashScreen.Show();
System.Windows.Forms.Application.Run(FrmMain.Default);
}
public static void CloseSingletonInstanceMutex()
{
_mutex?.Close();
}
private static void StartApplicationAsSingleInstance()
{
const string mutexID = "mRemoteNG_SingleInstanceMutex";
_mutex = new Mutex(false, mutexID, out var newInstanceCreated);
if (!newInstanceCreated)
{
SwitchToCurrentInstance();
return;
}
StartApplication();
GC.KeepAlive(_mutex);
}
private static void SwitchToCurrentInstance()
{
var singletonInstanceWindowHandle = GetRunningSingletonInstanceWindowHandle();
if (singletonInstanceWindowHandle == IntPtr.Zero) return;
if (NativeMethods.IsIconic(singletonInstanceWindowHandle) != 0)
NativeMethods.ShowWindow(singletonInstanceWindowHandle, (int)NativeMethods.SW_RESTORE);
NativeMethods.SetForegroundWindow(singletonInstanceWindowHandle);
}
private static IntPtr GetRunningSingletonInstanceWindowHandle()
{
var windowHandle = IntPtr.Zero;
var currentProcess = Process.GetCurrentProcess();
foreach (var enumeratedProcess in Process.GetProcessesByName(currentProcess.ProcessName))
{
if (enumeratedProcess.Id != currentProcess.Id &&
enumeratedProcess.MainModule.FileName == currentProcess.MainModule.FileName &&
enumeratedProcess.MainWindowHandle != IntPtr.Zero)
windowHandle = enumeratedProcess.MainWindowHandle;
}
return windowHandle;
}
private static void CatchAllUnhandledExceptions()
{
System.Windows.Forms.Application.ThreadException += ApplicationOnThreadException;
System.Windows.Forms.Application.SetUnhandledExceptionMode(UnhandledExceptionMode.CatchException);
AppDomain.CurrentDomain.UnhandledException += CurrentDomainOnUnhandledException;
}
private static void ApplicationOnThreadException(object sender, ThreadExceptionEventArgs e)
{
// if (PresentationSource.FromVisual(FrmSplashScreenNew))
FrmSplashScreenNew.GetInstance().Close();
if (FrmMain.Default.IsDisposed) return;
var window = new FrmUnhandledException(e.Exception, false);
window.ShowDialog(FrmMain.Default);
}
private static void CurrentDomainOnUnhandledException(object sender, UnhandledExceptionEventArgs e)
{
//TODO: Check if splash closed properly
//if (!FrmSplashScreenNew.GetInstance().IsDisposed)
// FrmSplashScreenNew.GetInstance().Close();
var window = new FrmUnhandledException(e.ExceptionObject as Exception, e.IsTerminating);
window.ShowDialog(FrmMain.Default);
}
}
}
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