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