\subsection{GUI system}\label{guisystemconst}
\begin{twocollist}\itemsep=0pt
-\twocolitem{\_\_WINDOWS\_\_}{any Windows, yom may also use \_\_WXMSW\_\_}
+\twocolitem{\_\_WINDOWS\_\_}{any Windows, you may also use \_\_WXMSW\_\_}
\twocolitem{\_\_WIN16\_\_}{Win16 API (not supported since wxWidgets 2.6)}
\twocolitem{\_\_WIN32\_\_}{Win32 API}
\twocolitem{\_\_WXBASE\_\_}{Only wxBase, no GUI features (same as \texttt{wxUSE\_GUI} $== 0$)}
\twocolitem{\_\_WXCOCOA\_\_}{OS X using Cocoa API}
+\twocolitem{\_\_WXDFB\_\_}{wxUniversal using DirectFB}
\twocolitem{\_\_WXWINCE\_\_}{Windows CE}
\twocolitem{\_\_WXGTK\_\_}{GTK+}
\twocolitem{\_\_WXGTK12\_\_}{GTK+ 1.2 or higher}
\twocolitem{\_\_WXGTK20\_\_}{GTK+ 2.0 or higher}
+\twocolitem{\_\_WXGTK24\_\_}{GTK+ 2.4 or higher}
+\twocolitem{\_\_WXGTK26\_\_}{GTK+ 2.6 or higher}
+\twocolitem{\_\_WXGTK210\_\_}{GTK+ 2.10 or higher}
\twocolitem{\_\_WXMOTIF\_\_}{Motif}
\twocolitem{\_\_WXMOTIF20\_\_}{Motif 2.0 or higher}
\twocolitem{\_\_WXMAC\_\_}{Mac OS all targets}
\helpref{wxCHECK\_W32API\_VERSION}{wxcheckw32apiversion}}
\twocolitem{\_\_MINGW32\_\_}{MinGW}
\twocolitem{\_\_MWERKS\_\_}{CodeWarrior MetroWerks compiler}
-\twocolitem{\_\_SUNCC\_\_}{Sun CC}
+\twocolitem{\_\_SUNCC\_\_}{Sun CC, see also \helpref{wxCHECK\_SUNCC\_VERSION}{wxchecksunccversion}}
\twocolitem{\_\_SYMANTECC\_\_}{Symantec C++}
\twocolitem{\_\_VISAGECPP\_\_}{IBM Visual Age (OS/2)}
\twocolitem{\_\_VISUALC\_\_}{Microsoft Visual C++. The value of this macro
\twocolitem{\_\_WXWINDOWS\_\_}{always defined in wxWidgets applications, see
also \helpref{wxCHECK\_VERSION}{wxcheckversion}}
\twocolitem{\_\_WXDEBUG\_\_}{defined in debug mode, undefined in release mode}
-\twocolitem{wxUSE\_XXX}{if defined as $1$, feature XXX is active
-(the symbols of this form are always defined, use \#if and not \#ifdef to test
- for them)}
+\twocolitem{wxUSE\_XXX}{if defined as $1$, feature XXX is active, see the
+\helpref{complete list}{wxusedef} (the symbols of this form are always defined,
+use \#if and not \#ifdef to test for them)}
\twocolitem{WX\_PRECOMP}{is defined if precompiled headers (PCH) are in use. In
this case, \texttt{wx/wxprec.h} includes \texttt{wx/wx.h} which, in turn,
includes a number of wxWidgets headers thus making it unnecessary to include
don't include compiler flags needed for multithreaded code generation. This
implies that wxUSE\_THREADS is $0$ and also that other (non-wx-based) threading
packages cannot be used neither.}
+\twocolitem{WXMAKINGDLL\_XXX}{used internally and defined when building the
+library \texttt{XXX} as a DLL; when a monolithic wxWidgets build is used only a
+single \texttt{WXMAKINGDLL} symbol is defined}
+\twocolitem{WXUSINGDLL}{defined when compiling code which uses wxWidgets as a
+DLL/shared library}
+\twocolitem{WXBUILDING}{defined when building wxWidgets itself, whether as a
+static or shared library}
\end{twocollist}