1Gtk2::version(3)      User Contributed Perl Documentation     Gtk2::version(3)
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NAME

6       Gtk2::version -  Library Version Information
7

SYNOPSIS

9         use Gtk2 '1.023';  # require at least version 1.023 of the bindings
10
11         if ($Gtk2::VERSION >= 1.040 and Gtk2->CHECK_VERSION (2, 4, 0)) {
12            # the GtkFileChooser, new in gtk+ 2.4.0 and first supported in
13            # Gtk2-Perl at 1.040, is available
14         } else {
15            # GtkFileChooser is not available, fall back to GtkFileSelection
16         }
17

DESCRIPTION

19       Since the Gtk2 Perl module is a bridge to an external library with its
20       own versions and API revisions, we have three different versions
21       available for inspection.  Which one you need to use at which time
22       depends entirely on the situation.  Gtk2 uses the same scheme as Glib
23       and the underlying gtk+ C library; that is, the standard $Gtk2::VERSION
24       for the version of the bindings, all-caps (MAJOR|MINOR|MICRO)_VERSION
25       functions for the bound version, and lower-case
26       (major|minor|micro)_version functions for the runtime version.  See
27       Glib::version and
28       <http://developer.gnome.org/doc/API/2.0/gtk/gtk-Feature-Test-Macros.html>
29       for more information.
30
31       Note also that gtk_check_version() and GTK_CHECK_VERSION() have
32       different semantics in C, and we have preserved those faithfully.
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METHODS

35   boolean = Gtk2->CHECK_VERSION ($required_major, $required_minor,
36       $required_micro)
37       •   $required_major (integer)
38
39       •   $required_minor (integer)
40
41       •   $required_micro (integer)
42
43       Provides a mechanism for checking the version information that Gtk2 was
44       compiled against. Essentially equvilent to the macro GTK_CHECK_VERSION.
45       In most cases this function should be used rather than check_version
46       ().
47
48   (MAJOR, MINOR, MICRO) = Gtk2->GET_VERSION_INFO
49       Shorthand to fetch as a list the gtk+ version for which Gtk2 was
50       compiled.  See "Gtk2::MAJOR_VERSION", etc.
51
52   integer = Gtk2::MAJOR_VERSION
53       The major version of the gtk+ library against which Gtk2 was compiled.
54       Equivalent to gtk+'s GTK_MAJOR_VERSION.
55
56   integer = Gtk2::MICRO_VERSION
57       The micro version of the gtk+ library against which Gtk2 was compiled.
58       Equivalent to gtk+'s GTK_MICRO_VERSION.
59
60   integer = Gtk2::MINOR_VERSION
61       The minor version of the gtk+ library against which Gtk2 was compiled.
62       Equivalent to gtk+'s GTK_MINOR_VERSION.
63
64   string = Gtk2->check_version ($required_major, $required_minor,
65       $required_micro)
66       •   $required_major (integer)
67
68       •   $required_minor (integer)
69
70       •   $required_micro (integer)
71
72       Returns undef if the version of gtk+ currently in use is compatible
73       with the given version, otherwise returns a string describing the
74       mismatch.  Note that this is not the same logic as
75       "Gtk2::CHECK_VERSION".  This check is not terribly reliable, and should
76       not be used to test for availability of widgets or functions in the
77       Gtk2 module --- use "Gtk2::CHECK_VERSION" for that.  See Glib::version
78       for a more detailed description of when you'd want to do a runtime-
79       version test.
80
81   integer = Gtk2::major_version
82       The major version of the gtk+ library current in use at runtime.
83       Equivalent to gtk+'s global variable gtk_major_version.
84
85   integer = Gtk2::micro_version
86       The micro version of the gtk+ library current in use at runtime.
87       Equivalent to gtk+'s global variable gtk_micro_version.
88
89   integer = Gtk2::minor_version
90       The minor version of the gtk+ library current in use at runtime.
91       Equivalent to gtk+'s global variable gtk_minor_version.
92
93   (major, minor, micro) = Gtk2->get_version_info
94       Shorthand to fetch as a list the gtk+ version against which Gtk2 is
95       linked.  See "Gtk2::major_version", etc.
96

SEE ALSO

98       Gtk2, Glib::version
99

101       Copyright (C) 2003-2011 by the gtk2-perl team.
102
103       This software is licensed under the LGPL.  See Gtk2 for a full notice.
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107perl v5.34.0                      2021-07-22                  Gtk2::version(3)
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