Matchbox Keyboard Toggler

matchbox-keyboard-toggler.c

/*
  A very simple program to send the toggle-keyboard event to matchbox-keyboard

  Requires a version of matchbox-keyboard running in daemon mode (-d), and 
  must be a version of matchbox-keyboard that supports the toggle event.  
  Currently the SVN version meets this requirement.

  Compiling:
    gcc matchbox-keyboard-toggler.c -o matchbox-keyboard-toggler -lX11

  Usage:
    Just run the program, and it will send the toggle event.

*/

#include <X11/Xlib.h>
#include <string.h>

int main(){

  Display *dsp = XOpenDisplay(NULL);

  if(dsp == NULL){
    return 1;
  }

  XEvent event;

  memset (&event, 0, sizeof (XEvent));

  Atom Atom_MB_IM_INVOKER_COMMAND = XInternAtom(dsp,
 					   "_MB_IM_INVOKER_COMMAND", False);
  event.xclient.type = ClientMessage;
  event.xclient.window = DefaultRootWindow(dsp);
  event.xclient.message_type = Atom_MB_IM_INVOKER_COMMAND;
  event.xclient.format = 32;
  event.xclient.data.l[0] = 3;

  XSendEvent (dsp,
	      DefaultRootWindow(dsp),
	      False,
	      SubstructureRedirectMask | SubstructureNotifyMask,
	      &event);

  XSync (dsp, False);

  XCloseDisplay( dsp );

  return 0;
}