public SettingsWindow(SettingsViewModel vm)
{
InitializeComponent();
VM = vm;
this.DataContext = VM;
VM.CloseEvent += VM_CloseEvent;
}
/// <summary>
/// Launches a modal dialog to allow user to change settings
/// </summary>
private void LaunchSettingsWindow()
{
var vm = new SettingsViewModel();
var window = new SettingsWindow(vm);
window.Owner = Application.Current.MainWindow;
window.ShowDialog();
}