#include <stdlib.h>
#include <stdio.h>
#include <X11/Xlib.h>

#define XStringToKeycode(d, s) XKeysymToKeycode(d, XStringToKeysym(s))
int main(int argc, char *argv[])
{
  Display *d;
  Window w;
  XEvent ev;
  int state = 0;

  if (argc < 3) exit(1);
  else if (argc > 3)
    while (argc-- > 3) {
      if (!strcmp(argv[argc], "shift"))        state |= ShiftMask;
      else if (!strcmp(argv[argc], "lock"))    state |= LockMask;
      else if (!strcmp(argv[argc], "control")) state |= ControlMask;
      else if (!strcmp(argv[argc], "alt"))     state |= Mod1Mask;
      else if (!strcmp(argv[argc], "num"))     state |= Mod2Mask;
      else if (!strcmp(argv[argc], "meta"))    state |= Mod3Mask;
      else if (!strcmp(argv[argc], "super"))   state |= Mod4Mask;
      else if (!strcmp(argv[argc], "scroll"))  state |= Mod5Mask;
    }
  w = strtol(argv[1], NULL, 0);
  d = XOpenDisplay("");
  ev.xkey.window = w;
  ev.xkey.state = state;
  ev.xkey.keycode = XStringToKeycode(d, argv[2]);
  ev.type = KeyPress;
  XSendEvent(d, w, False, 0, &ev);
  ev.type = KeyRelease;
  XSendEvent(d, w, False, 0, &ev);
  XSync(d, False);

  return 0;
}