/* MAJE_LDLIB=-lX11 */

#define _POSIX_C_SOURCE 200809L
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <X11/Xlib.h>

int main(int argc, char *argv[])
{
	int c = 0;
	while ((c = getopt(argc, argv, "")) != -1) {
		switch (c) {
		default:
			return 1;
		}
	}

	Display *dpy = XOpenDisplay("");
	if (dpy == NULL) {
		fprintf(stderr, "xbar: can't open display\n");
		return 1;
	}

	int screen = DefaultScreen(dpy);
	int width = DisplayWidth(dpy, screen);
	int height = 20;

	Window win = XCreateSimpleWindow(dpy, XDefaultRootWindow(dpy),
		0, 0, width, height, 0,
		BlackPixel(dpy, screen), BlackPixel(dpy, screen));
	XSelectInput(dpy, win, ExposureMask | KeyPressMask);
	XMapWindow(dpy, win);

	for (;;) {
		XEvent e;
		XNextEvent(dpy, &e);
		switch (e.type) {
		case Expose:
			XDrawString(dpy, win, DefaultGC(dpy, screen), 0, 0,
				"hello", strlen("hello"));
			break;

		case KeyPress:
			printf("keypress\n");
			break;

		default:
			break;
		}
	}

	return 0;
}