How do you center your main window in WPF?

Question

I have a WPF application and I need to know how to center the wain window programatically (not in XAML).

I need to be able to do this both at startup and in response

Answer 1

In case you need to draw a window in an multiple screen environment. I've made a static class where the following method can be re-used:

public static void PostitionWindowOnScreen(Window window, double horizontalShift = 0, double verticalShift = 0)
{
    Screen screen = Screen.FromHandle(new System.Windows.Interop.WindowInteropHelper(window).Handle);
    window.Left = screen.Bounds.X + ((screen.Bounds.Width - window.ActualWidth) / 2) + horizontalShift;
    window.Top = screen.Bounds.Y + ((screen.Bounds.Height - window.ActualHeight) / 2) + verticalShift;        
}

In the constructor of the Window now just call the method:

this.Loaded += (s, a) => Globals.PostitionWindowOnScreen(this, 0, 0)