Doxygen cores 

Example:
Seen both on Solaris and Linux platform, Windows is not tested.

1. Create a file test.h with this contents:

        /** \page my_page
         **
        \dot
           digraph example {
                // nodes
                A
                B

                // edges
                A -> B
           }
        \enddot
         **/

2. Create an default configuration file using:

      doxygen -g

3.  In Doxfile, change the following settings:

     INPUT                  = test.h

4. Run doxygen:

     doxygen