/// <summary>
/// Handler for mouse down on Left Trigger
/// </summary>
/// <param name="sender">Originating UI element for this event</param>
/// <param name="e">mouse button event args</param>
private void PressLeftTrigger_MouseDown(object sender, MouseButtonEventArgs e)
{
VirtualControllerViewModel viewModel = this.DataContext as VirtualControllerViewModel;
viewModel.PressLeftTrigger();
}