\section{Class Hierarchy}
This inheritance list is sorted roughly, but not completely, alphabetically\+:\begin{DoxyCompactList}
\item \contentsline{section}{\+\_\+on\+\_\+screen\+\_\+message}{\pageref{struct__on__screen__message}}{}
\item Q\+Object\begin{DoxyCompactList}
\item \contentsline{section}{Event\+Handler}{\pageref{class_event_handler}}{}
\end{DoxyCompactList}
\end{DoxyCompactList}
