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This is a small tool that fakes user keyboard events. You can send any key to the currently focused X11 application.
usage: genxkey [-d <int>] [-p] <key> -p : do not actually send the event, but print the KeySym info. -d <int>: delay event by <int> seconds Standard KeySym names are obtained from <X11/keysymdef.h> by removing the XK_ prefix from each name. Each KeySym may be modified by prepending either of ALT-, META-, CTRL- or SHIFT-.
Here's a link to the keysymdef.h file.
./genxkey -d 2 F_11 ./genxkey -d 2 CTRL-a ./genkey A ./genkey SHIFT-a
/* genxkey - generate X11 keyboard events (c) 2005 Robin Gareus <robin@gareus.org> Compile with: gcc -o genxkey xkbd.c -lX11 -lXtst This program 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 2, or (at your option) any later version. This program 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 this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <X11/Xlib.h> #include <X11/Xutil.h> #include <X11/keysym.h> #include <X11/keysymdef.h> #include <X11/extensions/XTest.h> Display *display = NULL; void usage(int exit_status, char *program_name) { fprintf(stderr,"Send a keyboard event to the currently focused X-application.\n",program_name); fprintf(stderr,"(c) GPL 2005 Robin Gareus <robin@gareus.org>\n"); fprintf(stderr," usage: %s [-d <int>] [-p] <key>\n",program_name); fprintf(stderr," -p : do not actually send the event, but print the KeySym info.\n"); fprintf(stderr," -d <int>: delay event by <int> seconds\n"); fprintf(stderr," Standard KeySym names are obtained from <X11/keysymdef.h> by removing the\n" " XK_ prefix from each name. Each KeySym may be modified by prepending\n" " either of ALT-, META-, CTRL- or SHIFT-.\n"); exit(exit_status); } int xkey_init (char *display_name) { if (display_name == NULL) display_name = XDisplayName (NULL); // printf ("Display name: %s\n", display_name); if ( (display=XOpenDisplay(display_name)) == NULL ) { fprintf( stdout, "Cannot connect to X server\n"); return(-1); } return (0); } //ks = XStringToKeysym("w"); //mod = 0: no modifier - 1: Meta/Alt key pressed. - 2: CTRL key pressed void xkey_send (long ks, int mod) { int kc; if (mod) { if (mod==1) kc = XKeysymToKeycode (display, XK_Meta_L); else if (mod==3) kc = XKeysymToKeycode (display, XK_Alt_L); else if (mod==4) kc = XKeysymToKeycode (display, XK_Shift_L); else kc = XKeysymToKeycode (display, XK_Control_L); XTestFakeKeyEvent(display, kc, True, 0); XFlush(display); } kc = XKeysymToKeycode (display, ks); XTestFakeKeyEvent(display, kc, True, 0); XFlush(display); XTestFakeKeyEvent(display, kc, False, 0); XFlush(display); if (mod) { if (mod==1) kc = XKeysymToKeycode (display, XK_Meta_L); else if (mod==3) kc = XKeysymToKeycode (display, XK_Alt_L); else if (mod==4) kc = XKeysymToKeycode (display, XK_Shift_L); else kc = XKeysymToKeycode (display, XK_Control_L); XTestFakeKeyEvent(display, kc, False, 0); XFlush(display); } } const char *modifier[] = { "none", "META", "CTRL", "ALT", "SHIFT"}; int main (int argc, char ** argv) { int arg=1; int mod=0; int printonly=0; int delay=0; KeySym symbol; if (argc < 2) usage(1,argv[0]); if (!strcmp("-h",argv[arg])) usage(0,argv[0]); // TODO: accept multiple chars to send... while (arg < argc-1) { if (!strcmp("-p",argv[arg])) { arg++; printonly=1; } else if (!strcmp("-d",argv[arg]) && arg < (argc-2) ) {arg++; delay=atoi(argv[arg++]); } else if (!strcmp("-h",argv[arg])) usage(0,argv[0]); else usage(1, argv[0]); } if (!strncasecmp(argv[arg],"ALT-",4)) { mod=3; memmove(argv[arg],argv[arg]+4,strlen(argv[arg])-3); } if (!strncasecmp(argv[arg],"META-",4)) { mod=1; memmove(argv[arg],argv[arg]+5,strlen(argv[arg])-4); } if (!strncasecmp(argv[arg],"CTRL-",5)) { mod=2; memmove(argv[arg],argv[arg]+5,strlen(argv[arg])-4); } if (!strncasecmp(argv[arg],"SHIFT-",6)) { mod=4; memmove(argv[arg],argv[arg]+6,strlen(argv[arg])-5); } if (xkey_init(NULL)) { fprintf(stderr,"Error: failed to connect to X server.\n"); exit (1); } symbol=XStringToKeysym(argv[arg]); if (symbol==NoSymbol) { fprintf(stderr," Error: invalid Key-token. -- use '-h' for help.\n"); exit(1); } if (delay) sleep(delay); if (printonly) printf(" key '%s' -> %lx [mod:%s]\n",argv[arg],symbol,modifier[mod]); else xkey_send(symbol,mod); return(0); }