documentation to refer to the same thing: a {\tt .dll} file under Windows or
{\tt .so} or {\tt .sl} one under Unix.
-Example of using this class to dynamically load {\tt strlen()} function:
+Example of using this class to dynamically load the {\tt strlen()} function:
\begin{verbatim}
#if defined(__WXMSW__)
Returns pointer to symbol {\it name} in the library or NULL if the library
contains no such symbol.
+