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/**************************************************************************** |
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|
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NumlockX - (C) 2000 Lubos Lunak <l.lunak@email.cz> |
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Released under the terms of the GNU General Public License |
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|
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main.c - |
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|
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$Id: enable_X11_numlock.c 158725 2001-03-29 11:17:40Z gc $ |
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|
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****************************************************************************/ |
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|
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/* The NumLock state detection code is originally from KLeds by |
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Hans Matzen <hans@tm.informatik.uni-frankfurt.de> */ |
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|
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#define __main_C |
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|
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#ifdef HAVE_CONFIG_H |
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#include <config.h> |
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#endif |
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|
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#include <X11/extensions/XTest.h> |
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#include <X11/keysym.h> |
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#include <stdio.h> |
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#include <string.h> |
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#include <stdlib.h> |
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|
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#define HAS_XKB 1 |
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#ifdef HAS_XKB |
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#include <X11/XKBlib.h> |
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#endif |
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|
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void usage( const char* argv0 ) |
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{ |
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printf( "NumlockX - (C) 2000 Lubos Lunak <l.lunak@email.cz>\n\n" |
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#ifdef HAS_XKB |
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"Usage : %s [on|off|switch]\n" |
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"on - sets NumLock on in X (default)\n" |
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"off - sets NumLock off in X\n" |
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"switch - changes NumLock state in X\n" |
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#else |
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"Usage : %s\n" |
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"Changes NumLock state in X\n" |
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"( NumLock state detection not available," |
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" compiled without XKB )\n" |
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#endif |
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"\n" |
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, argv0 ); |
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} |
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|
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Display* disp; |
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|
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#ifdef HAS_XKB |
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int get_numlock_state() |
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{ |
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unsigned int states; |
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if( XkbGetIndicatorState( disp, XkbUseCoreKbd, &states) != Success ) |
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{ |
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printf("Error while reading Indicator status\n"); |
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XCloseDisplay( disp ); |
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exit( 3 ); |
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} |
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return states & 0x02; /* NumLock appears to be bit1 */ |
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} |
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#endif |
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|
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void change_numlock() |
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{ |
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XTestFakeKeyEvent( disp, XKeysymToKeycode( disp, XK_Num_Lock ), True, CurrentTime ); |
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XTestFakeKeyEvent( disp, XKeysymToKeycode( disp, XK_Num_Lock ), False, CurrentTime ); |
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} |
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|
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#ifdef HAS_XKB |
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void set_on() |
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{ |
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if( !get_numlock_state()) |
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change_numlock(); |
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} |
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|
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void set_off() |
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{ |
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if( get_numlock_state()) |
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change_numlock(); |
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} |
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#endif |
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|
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int main( int argc, char* argv[] ) |
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{ |
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if( argc > 2 ) |
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{ |
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usage( argv[ 0 ] ); |
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return 1; |
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} |
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disp = XOpenDisplay( NULL ); |
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if( disp == NULL ) |
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{ |
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printf( "Error opening display\n" ); |
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return 2; |
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} |
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if( argc == 1 ) |
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#if HAS_XKB |
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set_on(); |
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else if( strncmp( argv[ 1 ], "on", 2 ) == 0 ) |
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set_on(); |
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else if( strncmp( argv[ 1 ], "of", 2 ) == 0 ) |
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set_off(); |
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#else |
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change_numlock(); /* if( argc == 1 ) */ |
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#endif |
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else if( strncmp( argv[ 1 ], "switch", 6 ) == 0 ) |
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change_numlock(); |
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else |
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{ |
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usage( argv[ 0 ] ); |
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XCloseDisplay( disp ); |
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return 1; |
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} |
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XCloseDisplay( disp ); |
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return 0; |
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} |
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