WebPlugInContainer WebPlugInContainer is an informal protocol that enables a plug-in to send messages to the application. TopicsPerforming actions on the enclosing containerwebPlugInContainerLoad(_:inFrame:)webPlugInContainerShowStatus(_:)Obtaining information about the containerwebFramewebPlugInContainerSelectionColor See AlsoRelated DocumentationWebKit Objective-C Programming GuideInteracting with Web Plug-insWebPlugIn