I am creating an RCP app which uses a host of third-party plugins. Some of these plugins contribute menus, menu items, and toolbar buttons that I do not wish to display. How can
To inspect details of menu, toolbar contributions etc.
org.eclipse.pde.runtime
Use activities to remove the UI contribution. The "active action definition identifier" value provided by ALT-SHIFT-F2 is the one to use as the pattern in the activityPatternBinding specification. See this question for more info on removing unwanted UI contributions.
Note that when using activities to remove unwanted UI contributions, sometimes you will need to specify the UI contributions' plug-in id and sometimes you won't depending on the individual contribution.
NB: The Plug-in Registry view can be also used to find the IDs for contributions, although you'll have to do some searching.
Alt + Shift + F2
then click some menu.
You can know contributor and menu URI.
Alt + Shift + F1 : inspect current active part and selection.
Alt + Shift + F3 : inspector contributor of Widget or item.
You needs plugin-spy plugin in runtime.