+Note that the afore cited code of the \texttt{Add} box was cleaned so as to only contain the necessary lines.
+The actual \xml file generated by \bbCreateBlackBox utility is more complete.
+It contains many comments to guide you, it already includes the informations you provided when running the \bbCreateBlackBoxns, and it looks like this:
+
+\begin{file}{\texttt{MyPackage/bbMyPackageMyBox.xml}}
+\small
+\begin{verbatim}
+<!--=======================================================================
+ STARTS THE DESCRIPTION OF THE BLACK BOX -->
+<blackbox name="MyBox">
+<!--====================================================================-->
+
+ <!--=====================================================================
+ THE BOX DOCUMENTATION -->
+
+ <author>myself</author>
+ <description>no idea of what it can do</description>
+ <category>__CATEGORY__</category>
+ <!--==================================================================-->
+
+ <!--=====================================================================
+ #include directives to be put in the .h generated
+ There must be one tag per file to include
+ Here we include the standard header iostream.h -->
+ <include><PRE>iostream</PRE></include>
+ <!--==================================================================-->
+
+ <!--=====================================================================
+ INPUTS/OUTPUTS DECLARATION -->
+ <!-- Declares an input with name 'In', type 'double'
+ and description 'First input' -->
+
+ <input name="In" type="double" description="First input"/>
+
+ <!-- Declares an output with name 'Out', type 'double'
+ and description 'First output' -->
+ <output name="Out" type="double" description="First output"/>
+ <!--==================================================================-->
+
+ <!--=====================================================================
+ THE PROCESSING METHOD BODY :
+ Here simply copies the value of the input 'In' to the output 'Out'
+ And prints out the value
+ INPUT/OUTPUT ACCESSORS ARE OF THE FORM :
+ void bbSet{Input|Output}NAME(const TYPE&)
+ const TYPE& bbGet{Input|Output}NAME() const
+ Where :
+ * NAME is the name of the input/output
+ (the one provided in the attribute 'name' of the tag 'input')
+ * TYPE is the C++ type of the input/output
+ (the one provided in the attribute 'type' of the tag 'input') -->
+
+ <process>
+ <PRE>
+ bbSetOutputOut( bbGetInputIn() );
+ std::cout << "Output value = " <<bbGetOutputOut() << std::endl;
+ </PRE>
+ </process>
+ <!--==================================================================-->
+
+ <!--=====================================================================
+ CONSTRUCTORS / DESTRUCTORS (OPTIONAL)
+ THE CONSTRUCTION METHOD BODY :
+ Here initializes the input 'In' to 0
+ This is also where you should allocate the output pointers -->
+ <constructor>
+ <PRE>
+ bbSetInputIn(0);
+ </PRE>
+ </constructor>
+
+ <!-- THE COPY-CONSTRUCTION METHOD BODY :
+ Here does nothing
+ But this is where you should allocate the output pointers if any
+ and copy the pointed values (to avoid bug caused by multiple refs) -->
+ <copyconstructor>
+ <PRE>
+ </PRE>
+ </copyconstructor>
+
+ <!-- THE DESTRUCTION METHOD BODY :
+ Here does nothing
+ but this is where you should desallocate the output pointers if any -->
+ <destructor>
+ <PRE>
+ </PRE>
+ </destructor>
+ <!--==================================================================-->
+
+<!--====================================================================-->
+<!-- END OF BLACK BOX DESCRIPTION -->
+</blackbox>
+<!--====================================================================-->
+<!--====================================================================-->
+<!--====================================================================-->
+<!--====================================================================-->
+\end{verbatim}
+\end{file}
+
+To describe your own black box in \xml code,
+you have to modify this \xml file as follows: