Support teams preview

quanljh · Oct 11, 2023 · 29caf2e · 29caf2e
1 parent f5b328b
commit 29caf2e
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Showing 4 changed files with 56 additions and 12 deletions.
diff --git a/App.xaml.cs b/App.xaml.cs
@@ -1,9 +1,5 @@
-using System;
-using System.Collections.Generic;
-using System.Configuration;
-using System.Data;
-using System.Linq;
-using System.Threading.Tasks;
+using System.Diagnostics;
+using System.Reflection;
 using System.Windows;
 
 namespace MessAround
@@ -13,5 +9,17 @@ namespace MessAround
     /// </summary>
     public partial class App : Application
     {
+        public const int EXIT_CODE_ALREADY_RUNNING = -9;
+
+        protected override void OnStartup(StartupEventArgs e)
+        {
+            if (Process.GetProcessesByName(Assembly.GetExecutingAssembly().GetName().Name).Length > 1)
+            {
+                MessageBox.Show("Cannot run this application multiple times", "Error");
+                Current.Shutdown(EXIT_CODE_ALREADY_RUNNING);
+                return;
+            }
+            base.OnStartup(e);
+        }
     }
 }
diff --git a/Helpers/NativeMethods.cs b/Helpers/NativeMethods.cs
@@ -26,6 +26,12 @@ public static class NativeMethods
     [DllImport("user32.dll", SetLastError = true)]
     internal static extern bool ShowWindow(IntPtr hWnd, int nCmdShow);
 
+    [DllImport("user32.dll", SetLastError = true)]
+    internal static extern IntPtr FindWindow(string lpClassName, string lpWindowName);
+
+    [DllImport("user32.dll")]
+    internal static extern bool EnumChildWindows(IntPtr hwndParent, EnumWindowsProc enumProc, IntPtr lParam);
+
     [DllImport("user32.dll")]
     internal static extern bool SetForegroundWindow(IntPtr hWnd);
 
@@ -157,4 +163,18 @@ public static bool RestoreWindow(IntPtr hWnd)
         wpl.showCmd = ShowWindowCommands.Restore;
         return SetWindowPlacement(hWnd, ref wpl);
     }
+
+    // Delegate to be used with EnumWindows
+    public delegate bool EnumWindowsProc(IntPtr hWnd, IntPtr lParam);
+
+    public static bool MyEnumWindowsProc(IntPtr hWnd, IntPtr lParam)
+    {
+        StringBuilder title = new StringBuilder(256);
+        GetWindowText(hWnd, title, 256);
+
+        Console.WriteLine($"Window handle: {hWnd}, Title: {title}");
+
+        return true; // Continue enumeration
+    }
+
 }
diff --git a/MainWindow.xaml b/MainWindow.xaml
@@ -9,7 +9,7 @@
         mc:Ignorable="d"
         Title="KeepTeamsAlive" Height="300" Width="300">
     <StackPanel VerticalAlignment="Center">
-        <TextBlock HorizontalAlignment="Center" VerticalAlignment="Center" Text="Ready to loaf on the job"></TextBlock>
-        <TextBlock Margin="0,5" HorizontalAlignment="Center" VerticalAlignment="Center" Text="Close this application if you want to back to work."></TextBlock>
+        <TextBlock HorizontalAlignment="Center" VerticalAlignment="Center" Text="Please go to have a coffee."></TextBlock>
+        <TextBlock x:Name="Message" Margin="0,5" HorizontalAlignment="Center" VerticalAlignment="Center" Text="Close this application if you want to back to work."></TextBlock>
     </StackPanel>
 </Window>
diff --git a/MainWindow.xaml.cs b/MainWindow.xaml.cs
@@ -27,10 +27,15 @@ public MainWindow()
 
             if (processes.Length == 0)
             {
-                _isTeamsRunning = false;
-                MessageBox.Show("Teams is not running!", "Warning");
-                Close();
-                return;
+                processes = Process.GetProcessesByName("ms-teams");
+
+                if (processes.Length == 0)
+                {
+                    _isTeamsRunning = false;
+                    MessageBox.Show("Teams is not running!", "Warning");
+                    Close();
+                    return;
+                }
             }
 
             _isTeamsRunning = true;
@@ -72,6 +77,17 @@ private void MainWindow_OnLoaded(object sender, RoutedEventArgs e)
                 return;
             }
 
+
+            if (_teamsHWND == IntPtr.Zero)
+            {
+                Message.Text = "Starting teams...";
+                Process process = new Process();
+                process.StartInfo.FileName = "ms-teams.exe";
+                process.StartInfo.WindowStyle = ProcessWindowStyle.Normal;
+                process.Start();
+                Message.Text = "Close this application if you want to back to work.";
+            }
+
             NativeMethods.SetForegroundWindow(_teamsHWND);
 
             _timer = new DispatcherTimer