\twocolitem{\helpref{wxColourDialog}{wxcolourdialog}}{Colour chooser dialog}
\twocolitem{\helpref{wxDirDialog}{wxdirdialog}}{Directory selector dialog}
\twocolitem{\helpref{wxFileDialog}{wxfiledialog}}{File selector dialog}
+\twocolitem{\helpref{wxFindReplaceDialog}{wxfindreplacedialog}}{Text search/replace dialog}
\twocolitem{\helpref{wxMultipleChoiceDialog}{wxmultiplechoicedialog}}{Dialog to get one or more selections from a list}
\twocolitem{\helpref{wxSingleChoiceDialog}{wxsinglechoicedialog}}{Dialog to get a single selection from a list and return the string}
\twocolitem{\helpref{wxTextEntryDialog}{wxtextentrydialog}}{Dialog to get a single line of text from the user}
\begin{twocollist}\itemsep=0pt
\twocolitem{\helpref{wxColour}{wxcolour}}{Represents the red, blue and green elements of a colour}
+\twocolitem{\helpref{wxDCClipper}{wxdcclipper}}{Wraps the operations of setting and destroying the clipping region}
\twocolitem{\helpref{wxBitmap}{wxbitmap}}{Represents a bitmap}
\twocolitem{\helpref{wxBrush}{wxbrush}}{Used for filling areas on a device context}
\twocolitem{\helpref{wxBrushList}{wxbrushlist}}{The list of previously-created brushes}
\twocolitem{\helpref{wxDropFilesEvent}{wxdropfilesevent}}{A drop files event}
\twocolitem{\helpref{wxEraseEvent}{wxeraseevent}}{An erase background event}
\twocolitem{\helpref{wxEvent}{wxevent}}{The event base class}
+\twocolitem{\helpref{wxFindDialogEvent}{wxfinddialogevent}}{Event sent by
+\helpref{wxFindReplaceDialog}{wxfindreplacedialog}}
\twocolitem{\helpref{wxFocusEvent}{wxfocusevent}}{A window focus event}
\twocolitem{\helpref{wxKeyEvent}{wxkeyevent}}{A keypress event}
\twocolitem{\helpref{wxIconizeEvent}{wxiconizeevent}}{An iconize/restore event}
\twocolitem{\helpref{wxPathList}{wxpathlist}}{A class to help search multiple paths}
\twocolitem{\helpref{wxPoint}{wxpoint}}{Representation of a point}
\twocolitem{\helpref{wxRect}{wxrect}}{A class representing a rectangle}
+\twocolitem{\helpref{wxRegEx}{wxregex}}{Regular expression support}
\twocolitem{\helpref{wxRegion}{wxregion}}{A class representing a region}
\twocolitem{\helpref{wxString}{wxstring}}{A string class}
\twocolitem{\helpref{wxStringList}{wxstringlist}}{A class representing a list of strings}
\twocolitem{\helpref{wxTimer}{wxtimer}}{Timer class}
\twocolitem{\helpref{wxStopWatch}{wxstopwatch}}{Stop watch class}
\twocolitem{\helpref{wxMimeTypesManager}{wxmimetypesmanager}}{MIME-types manager class}
-\twocolitem{\helpref{wxSystemSettings}{wxsystemsettings}}{System settings class}
+\twocolitem{\helpref{wxSystemSettings}{wxsystemsettings}}{System settings class for obtaining various global parameters}
+\twocolitem{\helpref{wxSystemOptions}{wxsystemoptions}}{System options class for run-time configuration}
\twocolitem{\helpref{wxAcceleratorTable}{wxacceleratortable}}{Accelerator table}
\twocolitem{\helpref{wxAutomationObject}{wxautomationobject}}{OLE automation class}
\twocolitem{\helpref{wxFontMapper}{wxfontmapper}}{Font mapping, finding suitable font for given encoding}
\twocolitem{\helpref{wxEncodingConverter}{wxencodingconverter}}{Encoding conversions}
\twocolitem{\helpref{wxCalendarDateAttr}{wxcalendardateattr}}{Used with \helpref{wxCalendarCtrl}{wxcalendarctrl}}
\twocolitem{\helpref{wxQuantize}{wxquantize}}{Class to perform quantization, or colour reduction}
+\twocolitem{\helpref{wxSingleInstanceChecker}{wxsingleinstancechecker}}{Check that only single program instance is running}
\end{twocollist}