\twocolitem{\windowstyle{wxTR\_MULTIPLE}}{Use this style
to allow a range of items to be selected.
If a second range is selected, the current range, if any, is deselected.}
\twocolitem{\windowstyle{wxTR\_MULTIPLE}}{Use this style
to allow a range of items to be selected.
If a second range is selected, the current range, if any, is deselected.}