System.ComponentModel.Design.ActiveDesignerEventHandler public sealed delegate ActiveDesignerEventHandler : MulticastDelegate Documentation public ActiveDesignerEventHandler(object object, IntPtr method) public virtual IAsyncResult BeginInvoke(object sender, ActiveDesignerEventArgs e, AsyncCallback callback, object object) public virtual void EndInvoke(IAsyncResult result) public virtual void Invoke(object sender, ActiveDesignerEventArgs e)