NAME

       Gtk2::version -  Library Version Information

SYNOPSIS

         use Gtk2 '1.023';  # require at least version 1.023 of the bindings

         if ($Gtk2::VERSION >= 1.040 and Gtk2->CHECK_VERSION (2, 4, 0)) {
            # the GtkFileChooser, new in gtk+ 2.4.0 and first supported in
            # Gtk2-Perl at 1.040, is available
         } else {
            # GtkFileChooser is not available, fall back to GtkFileSelection
         }

DESCRIPTION

       Since the Gtk2 Perl module is a bridge to an external library with its own versions and
       API revisions, we have three different versions available for inspection.  Which one you
       need to use at which time depends entirely on the situation.  Gtk2 uses the same scheme as
       Glib and the underlying gtk+ C library; that is, the standard $Gtk2::VERSION for the
       version of the bindings, all-caps (MAJOR|MINOR|MICRO)_VERSION functions for the bound
       version, and lower-case (major|minor|micro)_version functions for the runtime version.
       See Glib::version and
       <http://developer.gnome.org/doc/API/2.0/gtk/gtk-Feature-Test-Macros.html> for more
       information.

       Note also that gtk_check_version() and GTK_CHECK_VERSION() have different semantics in C,
       and we have preserved those faithfully.

METHODS

   boolean = Gtk2->CHECK_VERSION ($required_major, $required_minor, $required_micro)
       •   $required_major (integer)

       •   $required_minor (integer)

       •   $required_micro (integer)

       Provides a mechanism for checking the version information that Gtk2 was compiled against.
       Essentially equvilent to the macro GTK_CHECK_VERSION. In most cases this function should
       be used rather than check_version ().

   (MAJOR, MINOR, MICRO) = Gtk2->GET_VERSION_INFO
       Shorthand to fetch as a list the gtk+ version for which Gtk2 was compiled.  See
       "Gtk2::MAJOR_VERSION", etc.

   integer = Gtk2::MAJOR_VERSION
       The major version of the gtk+ library against which Gtk2 was compiled.  Equivalent to
       gtk+'s GTK_MAJOR_VERSION.

   integer = Gtk2::MICRO_VERSION
       The micro version of the gtk+ library against which Gtk2 was compiled.  Equivalent to
       gtk+'s GTK_MICRO_VERSION.

   integer = Gtk2::MINOR_VERSION
       The minor version of the gtk+ library against which Gtk2 was compiled.  Equivalent to
       gtk+'s GTK_MINOR_VERSION.

   string = Gtk2->check_version ($required_major, $required_minor, $required_micro)
       •   $required_major (integer)

       •   $required_minor (integer)

       •   $required_micro (integer)

       Returns undef if the version of gtk+ currently in use is compatible with the given
       version, otherwise returns a string describing the mismatch.  Note that this is not the
       same logic as "Gtk2::CHECK_VERSION".  This check is not terribly reliable, and should not
       be used to test for availability of widgets or functions in the Gtk2 module --- use
       "Gtk2::CHECK_VERSION" for that.  See Glib::version for a more detailed description of when
       you'd want to do a runtime-version test.

   integer = Gtk2::major_version
       The major version of the gtk+ library current in use at runtime.  Equivalent to gtk+'s
       global variable gtk_major_version.

   integer = Gtk2::micro_version
       The micro version of the gtk+ library current in use at runtime.  Equivalent to gtk+'s
       global variable gtk_micro_version.

   integer = Gtk2::minor_version
       The minor version of the gtk+ library current in use at runtime.  Equivalent to gtk+'s
       global variable gtk_minor_version.

   (major, minor, micro) = Gtk2->get_version_info
       Shorthand to fetch as a list the gtk+ version against which Gtk2 is linked.  See
       "Gtk2::major_version", etc.

SEE ALSO

       Gtk2, Glib::version

COPYRIGHT

       Copyright (C) 2003-2011 by the gtk2-perl team.

       This software is licensed under the LGPL.  See Gtk2 for a full notice.