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XtSetLanguageProc(3Xt)
X11R6
NAME
  XtSetLanguageProc - set the language procedure

SYNOPSIS
  Widget XtSetLanguageProc(app_context, proc, client_data)
	  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 because 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 setlocal (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

Index for Section 3Xt

Alphabetical listing for X

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