Messages to Plug-ins

EP_DISABLE_AUTO_COMPLETE	Queries whether the auto complete for brackets/quotation marks feature should be disabled.
EP_GET_BITMAP	Retrieves bitmap resource IDs for various sizes and color depths for the plug-in displayed on a toolbar.
EP_GET_INFO	Retrieves information about the plug-in.
EP_GET_MASK	Retrieves mask color for the plug-in button on a toolbar.
EP_GET_NAME	Retrieves the plug-in name.
EP_GET_VERSION	Retrieves the plug-in version.
EP_QUERY_PROPERTIES	Queries whether the property is enabled.
EP_QUERY_UNINSTALL	Queries whether the plug-in can be uninstalled.
EP_SET_PROPERTIES	Requests the plug-in to display the properties.
EP_SET_UNINSTALL	Uninstalls the plug-in.
EP_PRE_TRANSLATE_MSG	Called before each Windows message is translated.
EP_USE_DROPPED_FILES	Queries whether the plug-in wants to use dropped files.
EP_USER_MSG	Sends the plug-in user-defined messages.
EP_SYNC_NOW	Instructs the plug-in to sync now if the sync feature is supported.

These messages are used by Functions to Export PlugInProc.

These constants are defined in the header file (plugin.h).