port from perforce

hgplus/bliss/Tweaky/App.xaml.cs

@@ -0,0 +1,59 @@
+using System;
+using System.Collections.Generic;
+using System.Configuration;
+using System.Data;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows;
+
+namespace Tweaky
+{
+    /// <summary>
+    /// Interaction logic for App.xaml
+    /// </summary>
+    public partial class App : Application
+    {
+        public App()
+        {
+            this.DispatcherUnhandledException += App_DispatcherUnhandledException;
+            AppDomain.CurrentDomain.UnhandledException += UnhandledExceptionHandler;
+        }
+
+        private void UnhandledExceptionHandler(object sender, UnhandledExceptionEventArgs e)
+        {
+            try
+            {
+                ShowException(e.ExceptionObject as Exception);
+                this.Shutdown();
+            }
+            catch
+            {
+            }
+        }
+
+        void App_DispatcherUnhandledException(object sender, System.Windows.Threading.DispatcherUnhandledExceptionEventArgs e)
+        {
+            try
+            {
+                ShowException(e.Exception);
+                this.Shutdown();
+            }
+            catch
+            {
+            }
+        }
+
+        private static void ShowException(Exception exception)
+        {
+            var message = exception.Message + " at:\n" + exception.StackTrace + "\n\n";
+            do
+            {
+                exception = exception.InnerException;
+                if (exception != null)
+                    message += exception.Message + " at:\n" + exception.StackTrace + "\n\n";
+            }
+            while (exception != null);
+            System.Windows.Forms.MessageBox.Show(message, "Unhandled exception");
+        }
+    }
+}