\twocolitem{\windowstyle{wxRB\_SINGLE}}{If your radio buttons are not
consecutive siblings, they cannot form a group under Windows and you should use
this style to indicate that each of them is handled individually.}
+\twocolitem{\windowstyle{wxRB\_USE\_CHECKBOX}}{Use of the checkbox control instead of radio
+button (currently supported only on PalmOS)}
\end{twocollist}
See also \helpref{window styles overview}{windowstyles}.