NAME

       XtSetLanguageProc - set the language procedure

SYNTAX

       #include <X11/Intrinsic.h>

       XtLanguageProc XtSetLanguageProc(XtAppContext app_context, XtLanguageProc proc, XtPointer client_data);

ARGUMENTS

       app_context
                 Specifies the application context in which the language procedure is to be used, or NULL.

       proc      Specifies the language procedure, or NULL.

       client_data
                 Specifies additional client data to be passed to the language procedure when it is called.

DESCRIPTION

       XtSetLanguageProc  sets  the  language  procedure  that  will  be called from XtDisplayInitialize for all
       subsequent Displays initialized in the specified  application  context.   If  app_context  is  NULL,  the
       specified  language  procedure  is registered in all application contexts created by the calling process,
       including any future application contexts that may be created.   If  proc  is  NULL  a  default  language
       procedure  is  registered.  XtSetLanguageProc returns the previously registered language procedure.  If a
       language procedure has not yet been registered, the return value is unspecified but if this return  value
       is  used  in  a  subsequent call to XtSetLanguageProc, it will cause the default language procedure to be
       registered.

       The default language procedure does the following:

       •    Sets the locale according to the environment.  On ANSI C-based  systems  this  is  done  by  calling
            setlocale(  LC_ALL,  language  ).   If  an  error  is  encountered  a warning message is issued with
            XtWarning.

       •    Calls XSupportsLocale to verify that the  current  locale  is  supported.   If  the  locale  is  not
            supported, a warning message is issued with XtWarning and the locale is set to “C”.

       •    Calls XSetLocaleModifiers specifying the empty string.

       •    Returns  the  value  of the current locale.  On ANSI C-based systems this is the return value from a
            final call to setlocale( LC_ALL, NULL ).

       A client wishing to use this mechanism to establish locale can do so by calling  XtSetLanguageProc  prior
       to XtDisplayInitialize.

SEE ALSO

       X Toolkit Intrinsics - C Language Interface
       Xlib - C Language X Interface

X Version 11                                       libXt 1.2.1                              XtSetLanguageProc(3)