XtSetLanguageProc(3)						   XT FUNCTIONS 					      XtSetLanguageProc(3)

NAME

       XtSetLanguageProc - set the language procedure

SYNTAX

       Widget 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 reg-
       istered.  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:

       o    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.

       o    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''.

       o    Calls XSetLocaleModifiers specifying the empty string.

       o    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 1.1.3 					      XtSetLanguageProc(3)