The first solution to write a part of a handbook is to complete the main document. To avoid that several persons work on the same file, it exists a solution to cut the docbook file. You can write a section or a chapter and you just have to include your part in the main file. To create a valid file for the compiler, you shoud modify the head of a docbook file and specify the kind of document you do. For a chapter, your file is like followed :

<!DOCTYPE chapter PUBLIC "-//OASIS//DTD Docbook XML V4.4//EN">
<chapter> 
    <title>My personal Chapter</title>
    <sect1> ... </sect1>
</chapter>

The identification gives the kind of file you write. For including your work, you just have to complete the declaration of the main file and insert a special tag located at the place that you want the inclusion. Don't forget to erase the declaration of your work. The file must begin with the markup “chapter”.

<!DOCTYPE book PUBLIC "-//OASIS//DTD Docbook V4.4//EN" [
  <!ENTITY myPersonalFile SYSTEM "myFile.xml">
]>
<book>
...
</chapter>
&myPersonalFile;
<chapter>
...

the element uses for the insert of a figure is “<figure>”. It enables the numerotation of the figures. Warning, the width of the figures should not exceed a certain value to avoid that it is truncated in the pdf transform. You can specify a title and other parameter in the limits of the DTD.

<figure> <title>Screenshot of the result</title>
<graphic fileref="doxygen-ex.png"/></figure>

In order to insert a figure as “inline”, use the tag inlinegraphics

See DocBook XSL : the complete guide

To do that, you use the set of tags programlisting, co, calloutlist, callout.

<programlisting>
class MyClasse{ <co id="myid" linkends="mylink"/>
};    
</programlisting>
<calloutlist>
    <callout arearefs="myid" id="mylink">
        <para>... comments ...</para>
    </callout>
</calloutlist>

The programlisting contains the program that you want to display. It is a verbatim mode. Warning, special caracters could be not allow : <, for example. The code element represents the callout you want to place. The location of the insertion is important because it is the location on display. Two attributes are essential : id for the identification and linkends for indicate which comments is linked with the callout. After the programlisting element, we use a calloutlist element to define a list of comments. each comment is contained in a callout element. It has attributes whose arearefs to make a reference to callouts and id for the identification.

It exists an other solution but it is more difficult. You have to specify coordinates of place where you want a callout. This solution is an easy and quick way to comment your program listing.

class MyClasse{ 
};    

To adapt the case to the console listing, you should use the screenco, screen, callout, ... elements.