/// <summary>
/// Attaches a <see cref="IMessageFilter"/> to current <see cref="Application"/>
/// to intercept window messages.
/// </summary>
/// <remarks>
/// This method must be called before calling <see cref="Application.Run(Form)"/>.
/// </remarks>
/// <exception cref="InvalidOperationException">If an instance is attached before.</exception>
public static void Attach()
{
if (!Win32.IsWindows7)
{
return;
}
if (instance == null)
{
instance = new TaskBarExtensions();
Application.AddMessageFilter(instance);
}
else
{
throw new InvalidOperationException("TaskBarExtensions already attached to current Application.");
}
}
protected override void Update()
{
TaskBarExtensions.UpdateThumbnailBarButton(this);
}
