build::Keysyms(3) User Contributed Perl Documentation build::Keysyms(3)
NAME
Gtk2::Gdk::Keysyms - key codes for Gtk2 programs
SYNOPSIS
use Gtk2;
use Gtk2::Gdk::Keysyms;
#
# the most common use is for deciphering keycodes in key events,
# like this:
#
sub key_press_handler {
my ($widget, $event) = @_;
if ($event->keyval == $Gtk2::Gdk::Keysyms{Escape}) {
abort_whatever ();
return 1;
}
elsif ($event->keyval == $Gtk2::Gdk::Keysyms{F1}) {
do_help_thing ();
return 1;
}
elsif ($event->keyval == $Gtk2::Gdk::Keysyms{KP_Enter}) {
execute_selected_text_as_command ();
return 1;
}
# we didn't handle it, pass it on...
return 0;
}
DESCRIPTION
Gdk defines symbolic names for the codes associated with each key on a keyboard, so that you don't go nuts with numeric values in your
programs. The hash %Gtk2::Gdk::Keysyms holds all those keycodes, indexed by the name, for use in your perl programs when you need to do
custom key handling. This commonly occurs when you want to bind an action to a key that isn't usable as an accelerator, or when you don't
have accelerators, or if you're trying to write an easter egg, or whatever.
As the list of keycodes is quite large and rather rarely used in application code, we've put it in a separately-loaded module to save
space. As an alternative, you might want to investigate Gtk2::Gdk-keyval_from_name> which offers basically the same functionality as the
hash.
To get a list of all available keys, either dump %Gtk2::Gdk::Keysyms, or look at the source of this module with "perldoc -m
Gtk2::Gdk::Keysyms".
AUTHOR
This module was automatically generated by a very simple perl script from gdk/gdkkeysyms.h. Programs that write programs are the happiest
programs of all.
COPYRIGHT
Copyright (C) 2003 by the gtk2-perl team (see the file AUTHORS for the full list)
This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details.
You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307 USA.
SEE ALSO
perl(1), Gtk2(3pm)
perl v5.12.1 2010-07-05 build::Keysyms(3)