How keep a UWP AppWindow fullscreen when another AppWindow enters Fullscreen on 2nd monitor?

问题

I'm trying to open 2 AppWindows (appWindowOne & appWindowTwo) on separate monitors in full screen but when appWindowTwo opens appWindowOne minimizes. I've tried making the AppWindow re-enter full screen programmatically but it causes the other AppWindow to minimize. When manually clicked in the taskbar it restores to full screen without affecting the other but I would like to know if it's possible to do it programmatically?

public static async void ShowAppWindows()
{
    AppWindow appWindowOne = await AppWindow.TryCreateAsync();
    Frame frameOne = new Frame();
    ElementCompositionPreview.SetAppWindowContent(appWindowOne, frameOne);

    AppWindow appWindowTwo = await AppWindow.TryCreateAsync();
    Frame frameTwo = new Frame();
    ElementCompositionPreview.SetAppWindowContent(appWindowTwo, frameTwo);

    FullScreenPresentationConfiguration FSPC = new FullScreenPresentationConfiguration()
    {
         IsExclusive = false
    };

    await appWindowOne.TryShowAsync();
    appWindowOne.RequestMoveToDisplayRegion(displayRegions[0]);
    appWindowOne.Presenter.RequestPresentation(FSPC);

    await appWindowTwo.TryShowAsync();
    appWindowTwo.RequestMoveToDisplayRegion(displayRegions[1]);
    appWindowTwo.Presenter.RequestPresentation(FSPC);
}

回答1:

. I've tried making the AppWindow re-enter full screen programmatically but it causes the other AppWindow to minimize.

This looks UI-thread was broken when make appWindowTwo into full screen. I guess setting two windows in a row in full screen will exhaust the UI thread. So, we could try to call a Task.Delay() before making appWindowTwo into full screen.

来源：https://stackoverflow.com/questions/61603569/how-keep-a-uwp-appwindow-fullscreen-when-another-appwindow-enters-fullscreen-on

标签

windows

uwp