Documents & Examples for newbie developer ?

[Pei Wu]

Hello community .

I've just got into Doxygen Dev.. in the project  I should develop a functionality-extension of Doxygen so that it could process PLC programms (Structured Text).  I found lots a documents about doxygen and was a little
lost..

Could someone give me some advices how I quickly 'enter ' ?

Thank you in advance.
Pei