How to get the resolution of screen? For a WinRT app?

Question

I want to know the screen resolution so that I can set the height of an element according to the resolution in a Windows 8 app.

Answer 1

Getting the bounds of current window is easy. But say if you want to set a large font size for bigger screen (resolution is same as 10" device, but screen is 27"), this wont help. Refer Scaling to different screens I used the following method to detect screen size & change text block font style appropriately.

         void detectScreenType()
    {
        double dpi = DisplayProperties.LogicalDpi;
        var bounds = Window.Current.Bounds;
        double h;
        switch (ApplicationView.Value)
        {
            case ApplicationViewState.Filled:
                h = bounds.Height;
                break;

            case ApplicationViewState.FullScreenLandscape:
                h = bounds.Height;
                break;

            case ApplicationViewState.Snapped:
                h = bounds.Height;
                break;

            case ApplicationViewState.FullScreenPortrait:
                h = bounds.Width;
                break;

            default:
                return;
        }
        double inches = h / dpi ;
        string screenType = "Slate";
        if (inches < 10)
        {
            screenType = "Slate";
        } else if (inches < 14) {
            screenType = "WorkHorsePC";
        }
        else 
        {
            screenType = "FamilyHub";
        }
        ApplicationDataContainer localSettings = Windows.Storage.ApplicationData.Current.LocalSettings;
        localSettings.Values["screenType"] = screenType;
    }