通常不要恢复旧线程,而是一种简单的方法,包括最小化到系统托盘,对于这样的 WPF:
public class EntryPoint
{
[STAThread]
public static void Main(string[] args)
{
SingleInstanceManager manager = new SingleInstanceManager();
manager.Run(args);
}
}
public class SingleInstanceManager : WindowsFormsApplicationBase
{
SingleInstanceApplication app;
public SingleInstanceManager()
{
this.IsSingleInstance = true;
}
protected override bool OnStartup(Microsoft.VisualBasic.ApplicationServices.StartupEventArgs e)
{
app = new SingleInstanceApplication();
app.Run();
return false;
}
protected override void OnStartupNextInstance(StartupNextInstanceEventArgs eventArgs)
{
base.OnStartupNextInstance(eventArgs);
app.Activate();
}
}
public class SingleInstanceApplication : Application
{
protected override void OnStartup(System.Windows.StartupEventArgs e)
{
base.OnStartup(e);
bool startMinimized = false;
for (int i = 0; i != e.Args.Length; ++i)
{
if (e.Args[i] == "/StartMinimized")
{
startMinimized = true;
}
}
MainWindow mainWindow = new MainWindow();
if (startMinimized)
{
mainWindow.WindowState = WindowState.Minimized;
}
mainWindow.Show();
}
public void Activate()
{
this.MainWindow.Activate();
this.MainWindow.WindowState = WindowState.Normal;
}
}
}
你的窗口类:
public partial class MainWindow : Window
{
private Window _window;
public MainWindow()
{
InitializeComponent();
SetStartup("AppName", true);
}
private void SetStartup(string AppName, bool enable)
{
string runKey = @"SOFTWARE\Microsoft\Windows\CurrentVersion\Run";
Microsoft.Win32.RegistryKey startupKey = Microsoft.Win32.Registry.LocalMachine.OpenSubKey(runKey);
if (enable)
{
if (startupKey.GetValue(AppName) == null)
{
startupKey.Close();
startupKey = Microsoft.Win32.Registry.LocalMachine.OpenSubKey(runKey, true);
startupKey.SetValue(AppName, Assembly.GetExecutingAssembly().Location + " /StartMinimized");
startupKey.Close();
}
}
else
{
startupKey = Microsoft.Win32.Registry.LocalMachine.OpenSubKey(runKey, true);
startupKey.DeleteValue(AppName, false);
startupKey.Close();
}
}
private void Window_Loaded(object sender, RoutedEventArgs e)
{
if (this.WindowState == System.Windows.WindowState.Minimized)
{
var minimized = (_window.WindowState == WindowState.Minimized);
_window.ShowInTaskbar = !minimized;
}
else
ShowInTaskbar = true;
}
第一次工作所以不得不发帖。我正在使用 WPF 通知图标,因此我需要它在 Windows 启动时进入系统托盘。