AcRxObject AcPlPlotReactor
class AcPlPlotReactor : public AcRxObject;
acplplotreactor.h
Applications derive from this class in order to be notified when AutoCAD or other applications perform plotting operations using an AcPlPlotEngine. Applications must instantiate their derived class and add it to the reactor list using the AcPlPlotReactorMgr::addReactor() method. Then AutoCAD will notify the reactor when an operation is performed by calling the corresponding method on the reactor.