Get window width / height in Windows store apps

Question

I currently have a basic page which loads, and I need some way of obtaining the width and height of the window, preferably in the constructor. The problem is, in the constructor, or before the page is completely loaded, I can't seem to get hold of the width and height. After it is loaded I can just use:

this.ActualWidth;
this.ActualHeight;

Is there any window load complete event I can use or any way to obtain the width and height during the loading?

They aren't calculated until the control is rendered. I don't know off-hand if there is a way to get them in code in metro. In WPF I think you can just handle the `OnResize` event or some such. — N_A, Oct 15 '12 at 17:48
possible duplicate of [How to get the resolution of screen? For a WinRT app?](http://stackoverflow.com/questions/10828179/how-to-get-the-resolution-of-screen-for-a-winrt-app) — Robert MacLean, Oct 03 '14 at 13:42

score 7 · Accepted Answer · edited May 23 '17 at 12:07

7

You can find out the size of the Window at any moment using the property Window.Current.Bounds. For more details, read: How to get the resolution of screen? For a WinRT app?

edited May 23 '17 at 12:07

Community

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answered Oct 15 '12 at 18:33

Mike Boula

276
1
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I'm was also relying on this value. But I'm getting weird values. When I select 10.6" 1366 x 768 these the Bounds are set to: (0, 0, 1371.429, 771.429). So it appears as if the width and height are increased by 3.5 pixels!? This is also happening on the actual device (Surface HD) – Joris Weimar Jul 01 '13 at 13:00

score 3 · Answer 2 · answered Oct 15 '12 at 17:53

Here is a blog post on how to handle the SizeChanged event. You can't get the ActualWidth/ActualHeight without doing something like this because they are calculated when the control is rendered.

private void OnWindowSizeChanged(object sender, Windows.UI.Core.WindowSizeChangedEventArgs e)
{
    var CurrentViewState = Windows.UI.ViewManagement.ApplicationView.Value;
    double AppWidth = e.Size.Width;
    double AppHeight = e.Size.Height;

    // DownloadImage requires accurate view state and app size!
    DownloadImage(CurrentViewState, AppHeight, AppWidth);
}

Window.Current.SizeChanged += OnWindowSizeChanged;

System.Diagnostics.Debug.WriteLine("w:{0} h:{1}", width, height); — Kris Krause, Sep 23 '15 at 11:33

Get window width / height in Windows store apps

2 Answers2

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