Open new window on secondary monitor in UWP

问题

I have a UWP project with two monitors that I want to use to open a new window on a secondary monitor. The application includes three parts:

Open Main Page on first monitor
Create new page
Open on secondary monitor

I wrote the first and second parts correctly, but I can't find a solution for the third part.

Please help me with moving the window to another monitor.

public sealed partial class MainPage : Page
{
    public MainPage()
    {
        this.InitializeComponent();

      //called creat new page function
        NewWindow();
    }

    private async void NewWindow()
    {
        var myview = CoreApplication.CreateNewView();
        int newid = 0;
        await myview.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
        {
            Frame newframe = new Frame();
            newframe.Navigate(typeof(Newpage), null);

            Window.Current.Content = newframe;
            Window.Current.Activate();
            ApplicationView.GetForCurrentView().Title = "Z";

            newid = ApplicationView.GetForCurrentView().Id;
        });

        await ApplicationViewSwitcher.TryShowAsStandaloneAsync(newid, ViewSizePreference.UseMinimum);

    }

}

回答1:

As @Ehssan's suggestion, the ProjectionManager Class meets your requirement. When you create a new view, you could use ProjectionManager.StartProjectingAsync Method to send it to the projector or other secondary display.

You could see the official Projection sample for more information.

回答2:

I found the solution and used ProjectionManger Class.

 private async void expand()
    {
        var NewWindow = CoreApplication.CreateNewView();
        int Windowid = ApplicationView.GetForCurrentView().Id;
        int NewWindowid = 0;

        await NewWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
        {
            Frame newframe = new Frame();
            newframe.Navigate(typeof(Newpage), null);

            Window.Current.Content = newframe;
            Window.Current.Activate();
            ApplicationView.GetForCurrentView().Title = "New Page";

            NewWindowid = ApplicationView.GetForCurrentView().Id;
        });

        //Call ProjectionManager class for moving new window to secodary display
        bool available = ProjectionManager.ProjectionDisplayAvailable;

        ProjectionManager.ProjectionDisplayAvailableChanged += (s, e) =>
        {
            available = ProjectionManager.ProjectionDisplayAvailable;
        };

        await ProjectionManager.StartProjectingAsync(NewWindowid, Windowid);
    }

回答3:

This might help your for identifying monitors.

this.Location = Screen.AllScreens[1].WorkingArea.Location;

来源：https://stackoverflow.com/questions/53923498/open-new-window-on-secondary-monitor-in-uwp

标签

uwp