/// <summary>
/// Executed when the a key is presses when the window is open.
/// </summary>
/// <param name="sender">Sender object.</param>
/// <param name="e">Key event args.</param>
private void ChildWindow_KeyDown(object sender, KeyEventArgs e)
{
FloatableWindow ew = sender as FloatableWindow;
Debug.Assert(ew != null, "FloatableWindow instance is null.");
// Ctrl+Shift+F4 closes the FloatableWindow
if (e != null && !e.Handled && e.Key == Key.F4 &&
((Keyboard.Modifiers & ModifierKeys.Control) == ModifierKeys.Control) &&
((Keyboard.Modifiers & ModifierKeys.Shift) == ModifierKeys.Shift))
{
ew.Close();
e.Handled = true;
}
}
