The collection will raise this event whenever a mark is added (as the result of a call to the client Javascript addMark or addMarks functions in the Client API) The object will raise this event after it has added the mark(s).
Note: All the references refer to the Client API library.
When the collection raises this event, it will provide a client Javascript "ImageGear.Web.UI.MarkEventArgs" object as the event argument. When raised as a result of the client Javascript "addMark" function, the event argument will have its "ImageGear.Web.UI.MarkEventArgs.mark" property set to the added mark. When raised as a result of the client Javascript "addMarks" function, the event argument will not contain a client Javascript "ImageGear.Web.UI.MarkEventArgs.mark" property.