internal TaskbarWindow(TabbedThumbnail preview)
{
if (preview == null) { throw new ArgumentNullException("preview"); }
// Create our proxy window
// Bug: This is only called in this constructor. Which will cause the property
// to fail if TaskbarWindow is initialized from a different constructor.
TabbedThumbnailProxyWindow = new TabbedThumbnailProxyWindow(preview);
// set our current state
EnableThumbnailToolbars = false;
EnableTabbedThumbnails = true;
// copy values
UserWindowHandle = preview.WindowHandle;
//WindowsControl = preview.WindowsControl;
TabbedThumbnail = preview;
}