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<H1><A NAME="5">5 Localizing error messages</A></H1>
<P> The library has a quite extensive set of error messages to give
 hints and catch erroneous input to many of the controlling methods and
 also do sanity check on the data to be plotted.</P>
<P> All error messages are collected in resource files which are
 localized to a specific language. All resource files are located under
 the &quot;lang/&quot; directory in the JpGraph installation directory. The
 deafult locale to be used is defined in the configuration file with the
 setting DEFAULT_ERR_LOCALE in the distribution this is set to English
 locale.</P>
<P> The chosen locale is specified in the beginning of the script with a
 call to the static method<I> JpGraphError::SetErrLocale()</I>. The
 argument to this method is the ISO naming of the country/language to be
 selected. For example to enable the special production locale the
 following line should be added in the beginning of the script</P>
<PRE>
JpGraphError::SetErrLocale('prod');
</PRE>
 If an unknown or unsupported locale is given the error message will
 default to English.<HR NOSHADE>
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