1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
#!/usr/bin/perl -w
# Copyright 2017 Kevin Ryde
# This file is part of X11-Protocol-Other.
#
# X11-Protocol-Other is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as published
# by the Free Software Foundation; either version 3, or (at your option) any
# later version.
#
# X11-Protocol-Other 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 General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with X11-Protocol-Other. If not, see <http://www.gnu.org/licenses/>.
# Listen to WM_DELETE_WINDOW messages on a top-level client window.
#
use strict;
use FindBin;
use X11::Protocol;
use X11::Protocol::WM;
use lib 'devel', '.';
# uncomment this to run the ### lines
# use Smart::Comments;
$|=1;
my $X = X11::Protocol->new;
my $window = $X->new_rsrc;
$X->CreateWindow ($window,
$X->root, # parent
'InputOutput', # class
$X->root_depth, # depth
'CopyFromParent', # visual
0,0, # x,y
128,128, # w,h initial size
0, # border
background_pixel => $X->black_pixel,
);
X11::Protocol::WM::set_wm_name ($X, $window, $FindBin::Script);
X11::Protocol::WM::set_wm_hints ($X, $window, input => 1);
X11::Protocol::WM::set_wm_protocols ($X, $window,
'WM_SAVE_YOURSELF',
'WM_DELETE_WINDOW');
$X->MapWindow ($window);
$X->ClearArea ($window, 0,0,0,0);
my $WM_PROTOCOLS = $X->atom('WM_PROTOCOLS');
printf "WM_PROTOCOLS = %d 0x%X %s\n", $WM_PROTOCOLS, $WM_PROTOCOLS,
$X->atom_name($WM_PROTOCOLS);
my $WM_DELETE_WINDOW = $X->atom('WM_DELETE_WINDOW');
printf "WM_DELETE_WINDOW = %d 0x%X %s\n", $WM_DELETE_WINDOW, $WM_DELETE_WINDOW,
$X->atom_name($WM_DELETE_WINDOW);
{
my $a = 0x1c0;
printf "a = %d 0x%X %s\n", $a, $a, $X->atom_name($a);
}
$X->{'event_handler'} = sub {
my (%h) = @_;
### event_handler: \%h
if ($h{'name'} eq 'ClientMessage') {
print "ClientMessage from window $h{'window'}\n";
my $type = $h{'type'};
printf " type %d 0x%X %s\n", $type, $type, $X->atom_name($type);
if ($h{'type'} == $WM_PROTOCOLS) {
my @values = unpack 'L', $h{'data'};
### @values
foreach my $value (@values) {
printf " data %d 0x%X %s\n", $value, $value, $X->atom_name($value);
}
} else {
}
}
};
for (;;) {
$X->handle_input;
}
exit 0;
|
