\documentclass[11pt]{book}

\usepackage{cite} 
\usepackage[pdftex]{graphicx}
\usepackage{titlesec}
\usepackage{listings}
\usepackage{fancyvrb}
\usepackage[svgnames]{xcolor}
\usepackage{framed}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{bbm}
\usepackage{hyperref}
\usepackage{makeidx}
\usepackage{color}
\usepackage{verbatim}

\setcounter{secnumdepth}{1}

\definecolor{shadecolor}{gray}{0.95}  % Background color of title bars
\lstset{
language=C,
basicstyle=\small\ttfamily,
backgroundcolor=\color{shadecolor}
}

\definecolor{cvlinkcolor}{rgb}{0.0 0.3 0.8}

% taken from http://en.wikibooks.org/wiki/LaTeX/Hyperlinks
\hypersetup{
    bookmarks=true,         % show bookmarks bar?
    unicode=false,          % non-Latin characters in Acrobat’s bookmarks
    %pdftoolbar=true,        % show Acrobat’s toolbar?
    %pdfmenubar=true,        % show Acrobat’s menu?
    %pdffitwindow=false,     % window fit to page when opened
    %pdfstartview={FitH},    % fits the width of the page to the window
    %pdftitle={My title},    % title
    %pdfauthor={Author},     % author
    %pdfsubject={Subject},   % subject of the document
    %pdfcreator={Creator},   % creator of the document
    %pdfproducer={Producer}, % producer of the document
    %pdfkeywords={keywords}, % list of keywords
    %pdfnewwindow=true,      % links in new window
    colorlinks=true,       % false: boxed links; true: colored links
    linkcolor=cvlinkcolor,  % color of internal links
    citecolor=cvlinkcolor,        % color of links to bibliography
    filecolor=magenta,      % color of file links
    urlcolor=cyan           % color of external links
}

\makeindex

\newcommand{\piRsquare}{\pi r^2}		% This is my own macro !!!

\usepackage{helvetica}
\usepackage{ifthen}
\usepackage{alltt}
\usepackage{opencv}

%%% Margins %%%
\oddsidemargin 0.0in
\evensidemargin 0.0in
\textwidth 6.5in
%\headheight 1.0in
%\topmargin 0.5in
%\textheight 9.0in
%\footheight 1.0in 
%%%%%%%%%%%%%%%

\title{OpenCV User Guide}		% used by \maketitle
\author{v2.2}		                % used by \maketitle
\date{December, 2010}				% used by \maketitle

\begin{document}
\maketitle						% automatic title!

\setcounter{tocdepth}{8}
\tableofcontents

\titleformat{\subsection}
{\titlerule
\vspace{.8ex}%
\normalfont\bfseries\Large}
{\thesection.}{.5em}{}

%%% Define these to get rid of warnings
\def\genc{true}
\def\genpy{true}
\def\gencpp{true}

\newif\ifC
\newif\ifPy
\newif\ifCpp
\newif\ifCPy

\Cfalse
\Cpptrue
\Pyfalse
\CPyfalse
\def\targetlang{cpp}
\part{C++ API User Guide}
\input{user_guide/opencv_guide_body}

\addcontentsline{toc}{part}{Index}
\printindex

\end{document}             % End of document.