+{\large {\bf Multimedia classes}}
+
+\twocolwidtha{6cm}
+\begin{twocollist}\itemsep=0pt
+\twocolitem{\helpref{wxMediaCtrl}{wxmediactrl}}{Display multimedia contents.}
+\end{twocollist}
+
+{\large {\bf OpenGL classes}}
+
+\twocolwidtha{6cm}
+\begin{twocollist}\itemsep=0pt
+\twocolitem{\helpref{wxGLCanvas}{wxglcanvas}}{Canvas that you can render OpenGL calls to.}
+\twocolitem{\helpref{wxGLContext}{wxglcontext}}{Class to ease sharing of OpenGL data resources.}
+\end{twocollist}
+
+{\large {\bf Application and process-management classes}}