/// <summary>
/// Convert the framework element to a Window Handle so it can be serialized.
/// </summary>
/// <param name="frameworkElement">The framework element to convert to a Window Handle.</param>
/// <returns>The Window Handle that is hosting the framework element.</returns>
static long CreateWindowHandle(Visual frameworkElement)
{
// ReSharper disable InconsistentNaming
const int WS_VISIBLE = 0x10000000;
// ReSharper restore InconsistentNaming
var parameters = new HwndSourceParameters(String.Format("NewWindowHost{0}", Guid.NewGuid()), 1, 1);
parameters.WindowStyle &= ~WS_VISIBLE;
var intPtr = new HwndSource(parameters)
{
RootVisual = frameworkElement
}.Handle;
return(intPtr.ToInt64());
}