<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Documentation</title> <link rel="stylesheet" type="text/css" href="style.css"> <meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> <link rel="home" href="index.html" title="Programming with gtkmm 3"> <link rel="up" href="chapter-wrapping-c-libraries.html" title="Appendix G. Wrapping C Libraries with gmmproc"> <link rel="prev" href="sec-wrapping-problems.html" title="Problems in the C API."> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <div class="navheader"> <table width="100%" summary="Navigation header"> <tr><th colspan="3" align="center">Documentation</th></tr> <tr> <td width="20%" align="left"> <a accesskey="p" href="sec-wrapping-problems.html"><img src="icons/prev.png" alt="Prev"></a> </td> <th width="60%" align="center">Appendix G. Wrapping C Libraries with gmmproc</th> <td width="20%" align="right"> </td> </tr> </table> <hr> </div> <div class="sect1"> <div class="titlepage"><div><div><h2 class="title" style="clear: both"> <a name="sec-wrapping-documentation"></a>Documentation</h2></div></div></div> <p>In general, gtkmm-style projects use Doxygen, which reads specially formatted C++ comments and generates HTML documentation. You may write these doxygen comments directly in the header files.</p> <div class="sect2"> <div class="titlepage"><div><div><h3 class="title"> <a name="wrapping-reusing-c-documentation"></a>Reusing C documentation</h3></div></div></div> <p>You might wish to reuse documentation that exists for the C library that you are wrapping. GTK-style C libraries typically use gtk-doc and therefore have source code comments formatted for gtk-doc and some extra documentation in .sgml and .xml files. The docextract_to_xml.py script, from glibmm's <code class="filename">tools/defs_gen</code> directory, can read these files and generate an .xml file that <span class="command"><strong>gmmproc</strong></span> can use to generate doxygen comments. <span class="command"><strong>gmmproc</strong></span> will even try to transform the documentation to make it more appropriate for a C++ API.</p> <p> For instance, </p> <pre class="programlisting">./docextract_to_xml.py -s ~/checkout/gnome/gtk+/gtk/ > gtk_docs.xml </pre> <p> </p> <p>Because this automatic transformation is not always appropriate, you might want to provide hand-written text for a particular method. You can do this by copying the XML node for the function from your <code class="filename">something_docs.xml</code> file to the <code class="filename">something_docs_override.xml</code> file and changing the contents.</p> </div> <div class="sect2"> <div class="titlepage"><div><div><h3 class="title"> <a name="wrapping-documentation-build-structure"></a>Documentation build structure</h3></div></div></div> <p>If you copied the skeleton source tree in mm-common and substituted the placeholder text, then you will already have suitable <code class="filename">Makefile.am</code> and <code class="filename">Doxyfile.in</code> files. With the mm-common build setup, the list of Doxygen input files is not defined in the Doxygen configuration file, but passed along from <span class="command"><strong>make</strong></span> to the standard input of <span class="command"><strong>doxygen</strong></span>. The input file list is defined by the <code class="varname">doc_input</code> variable in the <code class="filename">Makefile.am</code> file. </p> </div> </div> <div class="navfooter"> <hr> <table width="100%" summary="Navigation footer"> <tr> <td width="40%" align="left"> <a accesskey="p" href="sec-wrapping-problems.html"><img src="icons/prev.png" alt="Prev"></a> </td> <td width="20%" align="center"><a accesskey="u" href="chapter-wrapping-c-libraries.html"><img src="icons/up.png" alt="Up"></a></td> <td width="40%" align="right"> </td> </tr> <tr> <td width="40%" align="left" valign="top">Problems in the C API. </td> <td width="20%" align="center"><a accesskey="h" href="index.html"><img src="icons/home.png" alt="Home"></a></td> <td width="40%" align="right" valign="top"> </td> </tr> </table> </div> </body> </html>