An application operates within the context of a particular locale. The locale determines how to accept keyboard input, how to display characters and the format of date and time strings. This allows developers to customize their applications for use in different countries.
X-Designer generates a call to the X toolkit routine XtSetLanguageProc in the main code file. One of the parameters to this routine is the name of the procedure which will set up the locale. Xt provides a default language procedure, but you can define your own should you wish to have additional methods of setting the locale or only provide support for certain locales.
To define a language procedure, choose "Language Procedures..." from the Module menu.
You are referred to the manual pages for XtSetLanguageProc(3X) for further information. See also: