#define BOOL int
#define TRUE 1
#define FALSE 0
#include <stdio.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#define INITIAL_WIDTH 640
#define INITIAL_HEIGHT 600
#define INITIAL_X 100
#define INITIAL_Y 100
#define BORDER 2 /* outside the window */

int vz, hz;
XWMHints xwmh= {(InputHint|StateHint),True,NormalState,0,0,0,0,0,0,};
process(ev)
XEvent *ev;
{
KeySym ksr;
XComposeStatus sio;
int numch;
char buf[10]; /* buffer is 10, but probably no keys use > 1 */
int n;
numch= XLookupString(&(ev->xkey), buf, 5, &ksr, &sio);
n = (int) buf[0];
printf("numch=%d, ksr= %d, bufchr=%d\n", numch, (int) ksr, n);
}
main (argc, argv)
int argc; char *argv [];
{
Display *dpy; Window win; GC gc;
unsigned long fg, bg, bd;
unsigned long bw;
XSizeHints xsh;
XSetWindowAttributes xswa;
XGCValues gcv;
XEvent event;

if ((dpy=XOpenDisplay(NULL))==NULL)
{printf("Can not open X display");
exit(1);
}
fg= bd= BlackPixel (dpy, DefaultScreen(dpy));
bg= WhitePixel (dpy, DefaultScreen(dpy));
bw= BORDER;
xsh.flags= (PPosition|PSize|PMinSize);
xsh.height= INITIAL_HEIGHT;
xsh.width= INITIAL_WIDTH;
xsh.x= INITIAL_X;
xsh.y= INITIAL_Y;
xsh.min_width= 200;
xsh.min_height= 200;



win= XCreateSimpleWindow(dpy, DefaultRootWindow(dpy),
xsh.x, xsh.y, xsh.width, xsh.height, bw, bd, bg);
XSetStandardProperties (dpy,win,argv[0],argv[0],None,argv,argc,&xsh);
XSetWMHints (dpy, win, &xwmh);
xswa.colormap= DefaultColormap(dpy, DefaultScreen(dpy));
XChangeWindowAttributes(dpy, win, CWColormap, &xswa);
gcv.foreground= fg; gcv.background= bg;
gc= XCreateGC (dpy, win, (GCForeground|GCBackground), &gcv);
XSelectInput (dpy, win, ExposureMask|KeyPressMask);
XMapWindow (dpy, win);

/* main cycle */
while (1==1){
XNextEvent (dpy, &event);
switch (event.type){
case KeyPress:{
process (&event);
break;
}
}
}
}