1build::Keysyms(3)     User Contributed Perl Documentation    build::Keysyms(3)
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NAME

6       Gtk2::Gdk::Keysyms - key codes for Gtk2 programs
7

SYNOPSIS

9        use Gtk2;
10        use Gtk2::Gdk::Keysyms;
11
12        #
13        # the most common use is for deciphering keycodes in key events,
14        # like this:
15        #
16        sub key_press_handler {
17                my ($widget, $event) = @_;
18                if ($event->keyval == $Gtk2::Gdk::Keysyms{Escape}) {
19                        abort_whatever ();
20                        return 1;
21                }
22                elsif ($event->keyval == $Gtk2::Gdk::Keysyms{F1}) {
23                        do_help_thing ();
24                        return 1;
25                }
26                elsif ($event->keyval == $Gtk2::Gdk::Keysyms{KP_Enter}) {
27                        execute_selected_text_as_command ();
28                        return 1;
29                }
30                # we didn't handle it, pass it on...
31                return 0;
32        }
33

DESCRIPTION

35       Gdk defines symbolic names for the codes associated with each key on a
36       keyboard, so that you don't go nuts with numeric values in your
37       programs.  The hash %Gtk2::Gdk::Keysyms holds all those keycodes,
38       indexed by the name, for use in your perl programs when you need to do
39       custom key handling.  This commonly occurs when you want to bind an
40       action to a key that isn't usable as an accelerator, or when you don't
41       have accelerators, or if you're trying to write an easter egg, or
42       whatever.
43
44       As the list of keycodes is quite large and rather rarely used in
45       application code, we've put it in a separately-loaded module to save
46       space.  As an alternative, you might want to investigate
47       "Gtk2::Gdk->keyval_from_name" which offers basically the same
48       functionality as the hash.
49
50       To get a list of all available keys, either dump %Gtk2::Gdk::Keysyms,
51       or look at the source of this module with "perldoc -m
52       Gtk2::Gdk::Keysyms".
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AUTHOR

55       This module was automatically generated by a very simple perl script
56       from gdk/gdkkeysyms.h.  Programs that write programs are the happiest
57       programs of all.
58

60       Copyright (C) 2003, 2009 by the gtk2-perl team (see the file AUTHORS
61       for the full list)
62
63       This library is free software; you can redistribute it and/or modify it
64       under the terms of the GNU Library General Public License as published
65       by the Free Software Foundation; either version 2.1 of the License, or
66       (at your option) any later version.
67
68       This library is distributed in the hope that it will be useful, but
69       WITHOUT ANY WARRANTY; without even the implied warranty of
70       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
71       Library General Public License for more details.
72
73       You should have received a copy of the GNU Library General Public
74       License along with this library; if not, write to the Free Software
75       Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
76       02110-1301  USA.
77

SEE ALSO

79       perl, Gtk2, Gtk2::Gdk
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83perl v5.28.1                      2019-02-02                 build::Keysyms(3)
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