How to get screen bounds and change cursors in WinUI3 Desktop applications?

I need to achieve below requirements in WinUI 3 Desktop environment.

1. How to get display screen bounds?

2. How to change windows cursor type in desktop environment?

I already did this in WinUI UWP applications.

For Screen bounds,

var visibleBounds = Windows.UI.ViewManagement.ApplicationView.GetForCurrentView().VisibleBounds; var scaleFactor = Windows.Graphics.Display.DisplayInformation.GetForCurrentView().RawPixelsPerViewPixel; Size screenSize = new Size((visibleBounds.Width scaleFactor), (visibleBounds.Height scaleFactor));

For Cursor:

Window.Current.CoreWindow.PointerCursor = new CoreCursor(CoreCursorType.SizeNorthwestSoutheast, 0);

Anyone please suggest how to achieve same requirement in WinUI Desktop applications?

[azchohfi]

For the Cursor, there is a new API for this:

Microsoft.UI.Xaml.UIElement
{
    protected CoreCursor ProtectedCursor { get; set; }
}

You can set this property and it will handle it all for you. The only problem is that you need to have a subclass of UIElement to access it.

For DisplayInformation.GetForCurrentView().RawPixelsPerViewPixel, you need to get the XamlRoot.RasterizationScale.

[bridgesquared]

Hi @KanniyappanP

I had the same experience of using ProtectedCursor and finding that the mouse pointer didn’t change, really wound me up for a while but I needed to give the user the visual feedback of being busy so perservered.

Firstly I can confirm that ProtectedCursor does work, so stick with it.

The issue I found was as part of the action setting the cursor, I was also IsEnabled = false the containing UserControl as a quick way of showing the user that the TextBoxes were not available. By removing the IsEnabled = false it started to work.

I would recommend you go back to small steps, just set the cursor with no other side affects, convince yourself that it works and then build up the functionality you want and find out where the conflict occurs.

Another thought is that you might find that your action is fully synchronous and never yields the thread to change the pointer. You might try inserting a await Task.Delay(1000) to force a yield? Or do the work on another thread using Task.Run ...?

Hope that helps, best of luck …