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
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
/****************************************************************************
NumlockX - (C) 2000 Lubos Lunak <l.lunak@email.cz>
Released under the terms of the GNU General Public License
main.c -
$Id$
****************************************************************************/
/* The NumLock state detection code is originally from KLeds by
Hans Matzen <hans@tm.informatik.uni-frankfurt.de> */
#define __main_C
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <X11/extensions/XTest.h>
#include <X11/keysym.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#define HAS_XKB 1
#ifdef HAS_XKB
#include <X11/XKBlib.h>
#endif
void usage( const char* argv0 )
{
printf( "NumlockX - (C) 2000 Lubos Lunak <l.lunak@email.cz>\n\n"
#ifdef HAS_XKB
"Usage : %s [on|off|switch]\n"
"on - sets NumLock on in X (default)\n"
"off - sets NumLock off in X\n"
"switch - changes NumLock state in X\n"
#else
"Usage : %s\n"
"Changes NumLock state in X\n"
"( NumLock state detection not available,"
" compiled without XKB )\n"
#endif
"\n"
, argv0 );
}
Display* disp;
#ifdef HAS_XKB
int get_numlock_state()
{
unsigned int states;
if( XkbGetIndicatorState( disp, XkbUseCoreKbd, &states) != Success )
{
printf("Error while reading Indicator status\n");
XCloseDisplay( disp );
exit( 3 );
}
return states & 0x02; /* NumLock appears to be bit1 */
}
#endif
void change_numlock()
{
XTestFakeKeyEvent( disp, XKeysymToKeycode( disp, XK_Num_Lock ), True, CurrentTime );
XTestFakeKeyEvent( disp, XKeysymToKeycode( disp, XK_Num_Lock ), False, CurrentTime );
}
#ifdef HAS_XKB
void set_on()
{
if( !get_numlock_state())
change_numlock();
}
void set_off()
{
if( get_numlock_state())
change_numlock();
}
#endif
int main( int argc, char* argv[] )
{
if( argc > 2 )
{
usage( argv[ 0 ] );
return 1;
}
disp = XOpenDisplay( NULL );
if( disp == NULL )
{
printf( "Error opening display\n" );
return 2;
}
if( argc == 1 )
#if HAS_XKB
set_on();
else if( strncmp( argv[ 1 ], "on", 2 ) == 0 )
set_on();
else if( strncmp( argv[ 1 ], "of", 2 ) == 0 )
set_off();
#else
change_numlock(); /* if( argc == 1 ) */
#endif
else if( strncmp( argv[ 1 ], "switch", 6 ) == 0 )
change_numlock();
else
{
usage( argv[ 0 ] );
XCloseDisplay( disp );
return 1;
}
XCloseDisplay( disp );
return 0;
}
|
