public void WebBrowserBase_UICuesEventHandler_AddRemove_ThrowsNotSupportedException()
{
using var control = new SubWebBrowserBase("8856f961-340a-11d0-a96b-00c04fd705a2");
UICuesEventHandler handler = (sender, e) => { };
Assert.Throws <NotSupportedException>(() => control.ChangeUICues += handler);
control.ChangeUICues -= handler;
}
/// <summary>
/// Extends BeginInvoke so that when a state object is not needed, null does not need to be passed.
/// <example>
/// uicueseventhandler.BeginInvoke(sender, e, callback);
/// </example>
/// </summary>
public static IAsyncResult BeginInvoke(this UICuesEventHandler uicueseventhandler, Object sender, UICuesEventArgs e, AsyncCallback callback)
{
if (uicueseventhandler == null)
{
throw new ArgumentNullException("uicueseventhandler");
}
return(uicueseventhandler.BeginInvoke(sender, e, callback, null));
}