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Find owner window

// (c) Copyright Cory Plotts. // This source is subject to the Microsoft Public License (Ms-PL). // Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details. // All other rights reserved. using System; using System.Collections.Generic; using System.Text; using System.Windows; namespace Snoop {   public static class SnoopWindowUtils   {     public static Window FindOwnerWindow()     {       Window ownerWindow = null;       if (Application.Current != null)       {         if (Application.Current.MainWindow != null && Application.Current.MainWindow.Visibility == Visibility.Visible)         {           // first: set the owner window as the current application's main window, if visible.           ownerWindow = Application.Current.MainWindow;         }         else         {           // second: try and find a visible window in the list of the current application's windows           foreach (Window window in Application.Current.Windows)           {             if (window.Visibility == Visibility.Visible)             {               ownerWindow = window;               break;             }           }         }       }       if (ownerWindow == null)       {         // third: try and find a visible window in the list of current presentation sources         foreach (PresentationSource presentationSource in PresentationSource.CurrentSources)         {           if           (             presentationSource.RootVisual is Window &&             ((Window)presentationSource.RootVisual).Visibility == Visibility.Visible           )           {             ownerWindow = (Window)presentationSource.RootVisual;             break;           }         }       }       return ownerWindow;     }   } }