+{\large {\bf Stream classes}}
+
+wxWidgets has its own set of stream classes, as an alternative to often buggy standard stream
+libraries, and to provide enhanced functionality.
+
+\twocolwidtha{6cm}
+\begin{twocollist}\itemsep=0pt
+\twocolitem{\helpref{wxStreamBase}{wxstreambase}}{Stream base class}
+\twocolitem{\helpref{wxStreamBuffer}{wxstreambuffer}}{Stream buffer class}
+\twocolitem{\helpref{wxInputStream}{wxinputstream}}{Input stream class}
+\twocolitem{\helpref{wxOutputStream}{wxoutputstream}}{Output stream class}
+\twocolitem{\helpref{wxCountingOutputStream}{wxcountingoutputstream}}{Stream class for querying what size a stream would have.}
+\twocolitem{\helpref{wxFilterInputStream}{wxfilterinputstream}}{Filtered input stream class}
+\twocolitem{\helpref{wxFilterOutputStream}{wxfilteroutputstream}}{Filtered output stream class}
+\twocolitem{\helpref{wxBufferedInputStream}{wxbufferedinputstream}}{Buffered input stream class}
+\twocolitem{\helpref{wxBufferedOutputStream}{wxbufferedoutputstream}}{Buffered output stream class}
+\twocolitem{\helpref{wxMemoryInputStream}{wxmeminputstream}}{Memory input stream class}
+\twocolitem{\helpref{wxMemoryOutputStream}{wxmemoutputstream}}{Memory output stream class}
+\twocolitem{\helpref{wxDataInputStream}{wxdatainputstream}}{Platform-independent binary data input stream class}
+\twocolitem{\helpref{wxDataOutputStream}{wxdataoutputstream}}{Platform-independent binary data output stream class}
+\twocolitem{\helpref{wxTextInputStream}{wxtextinputstream}}{Platform-independent text data input stream class}
+\twocolitem{\helpref{wxTextOutputStream}{wxtextoutputstream}}{Platform-independent text data output stream class}
+\twocolitem{\helpref{wxFileInputStream}{wxfileinputstream}}{File input stream class}
+\twocolitem{\helpref{wxFileOutputStream}{wxfileoutputstream}}{File output stream class}
+\twocolitem{\helpref{wxFFileInputStream}{wxffileinputstream}}{Another file input stream class}
+\twocolitem{\helpref{wxFFileOutputStream}{wxffileoutputstream}}{Another file output stream class}
+\twocolitem{\helpref{wxTempFileOutputStream}{wxtempfileoutputstream}}{Stream to safely replace an existing file}
+\twocolitem{\helpref{wxStringInputStream}{wxstringinputstream}}{String input stream class}
+\twocolitem{\helpref{wxStringOutputStream}{wxstringoutputstream}}{String output stream class}
+\twocolitem{\helpref{wxZlibInputStream}{wxzlibinputstream}}{Zlib and gzip (compression) input stream class}
+\twocolitem{\helpref{wxZlibOutputStream}{wxzliboutputstream}}{Zlib and gzip (compression) output stream class}
+\twocolitem{\helpref{wxZipInputStream}{wxzipinputstream}}{Input stream for reading from ZIP archives}
+\twocolitem{\helpref{wxZipOutputStream}{wxzipoutputstream}}{Output stream for writing from ZIP archives}
+\twocolitem{\helpref{wxTarInputStream}{wxtarinputstream}}{Input stream for reading from tar archives}
+\twocolitem{\helpref{wxTarOutputStream}{wxtaroutputstream}}{Output stream for writing from tar archives}
+\twocolitem{\helpref{wxSocketInputStream}{wxsocketinputstream}}{Socket input stream class}
+\twocolitem{\helpref{wxSocketOutputStream}{wxsocketoutputstream}}{Socket output stream class}
+\end{twocollist}
+
+{\large {\bf Threading classes}}
+
+\overview{Multithreading overview}{wxthreadoverview}
+
+wxWidgets provides a set of classes to make use of the native thread
+capabilities of the various platforms.
+
+\twocolwidtha{6cm}
+\begin{twocollist}\itemsep=0pt
+\twocolitem{\helpref{wxThread}{wxthread}}{Thread class}
+\twocolitem{\helpref{wxThreadHelper}{wxthreadhelper}}{Manages background threads easily}
+\twocolitem{\helpref{wxMutex}{wxmutex}}{Mutex class}
+\twocolitem{\helpref{wxMutexLocker}{wxmutexlocker}}{Mutex locker utility class}
+\twocolitem{\helpref{wxCriticalSection}{wxcriticalsection}}{Critical section class}
+\twocolitem{\helpref{wxCriticalSectionLocker}{wxcriticalsectionlocker}}{Critical section locker utility class}
+\twocolitem{\helpref{wxCondition}{wxcondition}}{Condition class}
+\twocolitem{\helpref{wxSemaphore}{wxsemaphore}}{Semaphore class}
+\end{twocollist}
+
+{\large {\bf HTML classes}}
+
+wxWidgets provides a set of classes to display text in HTML format. These
+class include a help system based on the HTML widget.
+
+\twocolwidtha{6cm}
+\begin{twocollist}\itemsep=0pt
+\twocolitem{\helpref{wxHtmlHelpController}{wxhtmlhelpcontroller}}{HTML help controller class}
+\twocolitem{\helpref{wxHtmlWindow}{wxhtmlwindow}}{HTML window class}
+\twocolitem{\helpref{wxHtmlEasyPrinting}{wxhtmleasyprinting}}{Simple class for printing HTML}
+\twocolitem{\helpref{wxHtmlPrintout}{wxhtmlprintout}}{Generic HTML wxPrintout class}
+\twocolitem{\helpref{wxHtmlParser}{wxhtmlparser}}{Generic HTML parser class}
+\twocolitem{\helpref{wxHtmlTagHandler}{wxhtmltaghandler}}{HTML tag handler, pluginable into wxHtmlParser}
+\twocolitem{\helpref{wxHtmlWinParser}{wxhtmlwinparser}}{HTML parser class for wxHtmlWindow}
+\twocolitem{\helpref{wxHtmlWinTagHandler}{wxhtmlwintaghandler}}{HTML tag handler, pluginable into wxHtmlWinParser}
+\end{twocollist}
+
+{\large {\bf Rich text classes}}
+
+wxWidgets provides a set of generic classes to edit and print simple rich text with character
+and paragraph formatting.
+
+\twocolwidtha{6cm}
+\begin{twocollist}\itemsep=0pt
+\twocolitem{\helpref{wxTextAttr}{wxtextattr}}{Attributes specifying text styling.}
+\twocolitem{\helpref{wxRichTextCtrl}{wxrichtextctrl}}{A rich text control.}
+\twocolitem{\helpref{wxRichTextBuffer}{wxrichtextbuffer}}{The content of a rich text control.}
+\twocolitem{\helpref{wxRichTextCharacterStyleDefinition}{wxrichtextcharacterstyledefinition}}{Definition of character styling.}
+\twocolitem{\helpref{wxRichTextParagraphStyleDefinition}{wxrichtextparagraphstyledefinition}}{Definition of paragraph styling.}
+\twocolitem{\helpref{wxRichTextListStyleDefinition}{wxrichtextliststyledefinition}}{Definition of list styling.}
+\twocolitem{\helpref{wxRichTextStyleSheet}{wxrichtextstylesheet}}{A set of style definitions.}
+\twocolitem{\helpref{wxRichTextStyleComboCtrl}{wxrichtextstylecomboctrl}}{A drop-down control for applying styles.}
+\twocolitem{\helpref{wxRichTextStyleListBox}{wxrichtextstylelistbox}}{A listbox for applying styles.}
+\twocolitem{\helpref{wxRichTextStyleOrganiserDialog}{wxrichtextstyleorganiserdialog}}{A dialog that can be used for managing or browsing styles.}
+\twocolitem{\helpref{wxRichTextEvent}{wxrichtextevent}}{A rich text event.}
+\twocolitem{\helpref{wxRichTextRange}{wxrichtextrange}}{Specification for ranges in a rich text control or buffer.}
+\twocolitem{\helpref{wxRichTextFileHandler}{wxrichtextfilehandler}}{File handler base class.}
+\twocolitem{\helpref{wxRichTextHTMLHandler}{wxrichtexthtmlhandler}}{A handler for converting rich text to HTML.}
+\twocolitem{\helpref{wxRichTextXMLHandler}{wxrichtextxmlhandler}}{A handler for loading and saving rich text XML.}
+\twocolitem{\helpref{wxRichTextFormattingDialog}{wxrichtextformattingdialog}}{A dialog for rich text formatting.}
+\twocolitem{\helpref{wxRichTextPrinting}{wxrichtextprinting}}{A class for easy printing of rich text buffers.}
+\twocolitem{\helpref{wxRichTextPrintout}{wxrichtextprintout}}{A class used by wxRichTextPrinting.}
+\twocolitem{\helpref{wxRichTextHeaderFooterData}{wxrichtextheaderfooterdata}}{Header and footer data specification.}
+\end{twocollist}
+
+{\large {\bf Scintilla text editor classes}}
+
+wxWidgets also provides a wrapper around the Scintilla text editor control, which is
+a control for plain-text editing with support for highlighting, smart indentation, etc.