» Hover Help Plug-in Guide # Hover Help Overview Hover Help provides a link between the Carbide IDE and the Symbian OS C++ Developer Library. When activated, Hover Help provides developers with easy access to the API reference documentation. When a user hovers over a C++ API item, such as a class name, the editor shows the documentation for that API reference. Hover Help uses Developer Library plug-ins. These are Eclipse documentation plug-ins that contain the information displayed when an API reference item is hovered over. You can download Developer Library plug-ins from the Symbian Foundation website.