+\twocolitem{\helpref{RTTI macros}{rttimacros}}{Macros for manipulating run-time information}
+\end{twocollist}
+
+{\large {\bf Debugging features}}
+
+\overview{Overview}{wxlogoverview}
+
+wxWindows provides several classes and functions for the message logging.
+Please see the \helpref{wxLog overview}{wxlogoverview} for more details.
+
+\twocolwidtha{6cm}
+\begin{twocollist}\itemsep=0pt
+\twocolitem{\helpref{wxLog}{wxlog}}{The base log class}
+\twocolitem{\helpref{wxLogStderr}{wxlogstderr}}{Log messages to a C STDIO stream}
+\twocolitem{\helpref{wxLogStream}{wxlogstream}}{Log messages to a C++ iostream}
+\twocolitem{\helpref{wxLogTextCtrl}{wxlogtextctrl}}{Log messages to a \helpref{wxTextCtrl}{wxtextctrl}}
+\twocolitem{\helpref{wxLogWindow}{wxlogwindow}}{Log messages to a log frame}
+\twocolitem{\helpref{wxLogGui}{wxloggui}}{Default log target for GUI programs}
+\twocolitem{\helpref{wxLogNull}{wxlognull}}{Temporarily suppress message logging}
+\twocolitem{\helpref{wxLogChain}{wxlogchain}}{Allows to chain two log targets}
+\twocolitem{\helpref{wxLogPassThrough}{wxlogpassthrough}}{Allows to filter the log messages}
+\twocolitem{\helpref{wxStreamToTextRedirector}{wxstreamtotextredirector}}{Allows
+to redirect output sent to {\tt cout} to a \helpref{wxTextCtrl}{wxtextctrl}}
+\twocolitem{\helpref{Log functions}{logfunctions}}{Error and warning logging functions}