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Introduction
Frames have a link status that indicates the frame's participation in links maintained by containing parts. All OpenDoc parts that support embedding are responsible for ensuring that the link status of their embedded frames is set correctly. This document summarizes the part responsibilities for a part that does not support linking. Developers of parts supporting linking are referred to the Linking recipes for more information.
Implementing LinkStatusChanged
All parts that support embedding must implement ODPart::LinkStatusChanged. All they must do is pass the notification along to all embedded frames by calling ODFrame::ChangeLinkStatus. It is not necessary to internalize an embedded frame to make this call; it can be postponed until the embedded frame is internalized for some other reason.
Internalizing an Embedded Frame
It is the responsibility of every part to ensure that the link status of their embedded frames is set correctly. The easiest way for a part editor that does not support linking to do this is to call the frame's ChangeLinkStatus method immediately after internalizing the embedded frame. The ODLinkStatus parameter should be the link status of the part's display frame containing the embedded frame. For example:
Parts must set the link status of frames they embed, be it by a paste, drop, or some other means. If the part does not support linking, it should call the frame's ChangeLinkStatus method immediately after the frame is embedded and internalized.
