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
