public static void Main(string[] args) { lastHwnd = GetForegroundWindow(); lastPid = GetWindowProcessID(lastHwnd); Application.EnableVisualStyles(); Application.SetCompatibleTextRenderingDefault(false); bool isFirstInstance; // Please use a unique name for the mutex to prevent conflicts with other programs using (Mutex mtx = new Mutex(true, "TextFileXpander", out isFirstInstance)) { if (isFirstInstance) { NotificationIcon notificationIcon = new NotificationIcon(); notificationIcon.notifyIcon.Visible = true; Application.Run(); notificationIcon.notifyIcon.Dispose(); } else { // The application is already running MessageBox.Show("The application is already running"); } } // releases the Mutex }
public static void Main(string[] args) { lastHwnd = GetForegroundWindow(); lastPid = GetWindowProcessID(lastHwnd); Application.EnableVisualStyles(); Application.SetCompatibleTextRenderingDefault(false); bool isFirstInstance; // Please use a unique name for the mutex to prevent conflicts with other programs using (Mutex mtx = new Mutex(true, "TextFileXpander", out isFirstInstance)) { if (isFirstInstance) { NotificationIcon notificationIcon = new NotificationIcon(); notificationIcon.notifyIcon.Visible = true; Application.Run(); notificationIcon.notifyIcon.Dispose(); } else { // The application is already running MessageBox.Show("The application is already running"); } } // releases the Mutex }