\twocolitem{\windowstyle{wxSB\_FLAT}}{No border is painted around the field so that it appears flat.}
\twocolitem{\windowstyle{wxSB\_RAISED}}{A raised 3D border is painted around the field.}
\end{twocollist}
\twocolitem{\windowstyle{wxSB\_FLAT}}{No border is painted around the field so that it appears flat.}
\twocolitem{\windowstyle{wxSB\_RAISED}}{A raised 3D border is painted around the field.}
\end{twocollist}