\subsection{Input Filters}\label{filters} The wxHTML library provides a mechanism for reading and displaying files of many different file formats. \helpref{wxHtmlWindow::LoadPage}{wxhtmlwindowloadpage} can load not only HTML files but any known file. To make a file type known to wxHtmlWindow you must create a \helpref{wxHtmlFilter}{wxhtmlfilter} filter and register it using \helpref{wxHtmlWindow::AddFilter}{wxhtmlwindowaddfilter}.