通过 Process.start 参数传递和接收变量（Winform 到 UWP）

Question

我的UWP程序注册为协议，通过Winform程序的按钮调用。我想通过在 Winform 程序中传递变量值来接收来自 UWP 的值，但我不确定如何在 UWP 中接收传递的参数(XAML).

winform

 ProcessStartInfo startinfo = new ProcessStartInfo();

                startinfo.FileName = "safety:";

                startinfo.Arguments = LOGIN.userinfo.user_id;

                Process.Start(startinfo);

UWP(App.Xaml.cs)

  protected override void OnActivated(IActivatedEventArgs args)

    {
        //Initialize(args);

        if (args.Kind == ActivationKind.Protocol)

        {
           

            ProtocolActivatedEventArgs eventArgs = args as ProtocolActivatedEventArgs;

            Frame rootFrame = Window.Current.Content as Frame;

            if (rootFrame == null)

            {
                // Create a Frame to act as the navigation context and navigate to the first page

                rootFrame = new Frame();



                rootFrame.NavigationFailed += OnNavigationFailed;

                

                // Place the frame in the current Window

                Window.Current.Content = rootFrame;                    

            }



            // Always navigate for a protocol launch

            rootFrame.Navigate(typeof(MainPage), eventArgs.Uri.AbsoluteUri);

            // Ensure the current window is active                

            Window.Current.Activate();

        }

    }

Answer 1

Only once. when i click a button in Winform

您可以使用将要应用的数据添加到 Launcher.LaunchUriAsync(Uri, LauncherOptions, ValueSet) Method。然后你可以从 OnActivated 事件的 ProtocolActivatedEventArgs 中获取数据。

我已经根据你的代码实现了一个示例demo，你可以参考下面的代码：

UWP 应用程序：

  protected override void OnActivated(IActivatedEventArgs args)
    {
        if (args.Kind == ActivationKind.Protocol)
        {
            ProtocolActivatedEventArgs eventArgs = args as ProtocolActivatedEventArgs;

            //get the data from Winforms apps
            ValueSet data = eventArgs.Data;
            var d = data["token1"];

            Frame rootFrame = Window.Current.Content as Frame;
            if (rootFrame == null)
            {
                rootFrame = new Frame();
                Window.Current.Content = rootFrame;

            }
            // pass the data to the MainPage
            rootFrame.Navigate(typeof(MainPage), d);            

            Window.Current.Activate();
        }
    }

在 UWP 应用的主页中：

  protected override void OnNavigatedTo(NavigationEventArgs e)
    {
        base.OnNavigatedTo(e);

       var str =  e.Parameter.ToString();

    }

调用 LaunchUriAsync 时，按如下方式更改它：

        // Launch the URI
        var uri = new Uri("alsdk:");
        // create data.
        ValueSet v = new ValueSet();
        v.Add("token1", "12");

        // create LauncherOptions
        var options = new Windows.System.LauncherOptions();
        options.TargetApplicationPackageFamilyName = "PackageFamilyName of Your UWP project";
  
        var success = await Windows.System.Launcher.LaunchUriAsync(uri, options, v);

Answer 2

我用另一种方式解决了这个问题

winform

 Process.Start("safetytest:"+LOGIN.userinfo.user_id);

UWP(App.Xaml.cs)

protected override void OnActivated(IActivatedEventArgs args)
    {
        ThemeHelper.Initialize();

        Initialize(args);
        if (args.Kind == ActivationKind.Protocol)
        {
            ProtocolActivatedEventArgs eventArgs = args as ProtocolActivatedEventArgs;
            Frame rootFrame = Window.Current.Content as Frame;
            if (rootFrame == null)
            {
                // Create a Frame to act as the navigation context and navigate to the first page
                rootFrame = new Frame();

                rootFrame.NavigationFailed += OnNavigationFailed;

                // Place the frame in the current Window
                Window.Current.Content = rootFrame;

            }
            rootFrame.Navigate(typeof(MainPage), eventArgs.Uri.ToString());//this
            Window.Current.Activate();
        }
    }

UWP 主

  protected override async void OnNavigatedTo(NavigationEventArgs e)
    {           
        SafetyApp.user_info.user_id = e.Parameter.ToString().Substring(11);  
        var dialog = new MessageDialog(String.Format(user_info.user_id));
        await dialog.ShowAsync();          
    }

通过 Process.start 参数传递和接收变量（Winform 到 UWP）

Passing and receiving variables through Process.start parameter (Winform to UWP)

c#

uwp