#include <stdio.h>
#include <stdlib.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/extensions/shape.h>

int main(int argc, char *argv[]) {
  Display *display;
  Window win, root;
  XEvent event;
  Pixmap pixmap, shape;
  Atom a;
  XTextProperty t;
  int screen, depth, white, black;
  int w, h, hw, hh;
  int quit = 0;
  unsigned char *data;
  
  if (!(display = XOpenDisplay(getenv("DISPLAY"))) || argc < 2) return 1;

  screen = DefaultScreen(display);
  root = RootWindow(display, screen);
  depth = DefaultDepth(display, screen);
  white = WhitePixel(display, screen);
  black = BlackPixel(display, screen);

  XReadBitmapFileData(argv[1], &w, &h, &data, &hw, &hh);
  pixmap = XCreatePixmapFromBitmapData(display, root, data, w, h, black, white, depth);
//  XReadBitmapFile(display, root, argv[1], &w, &h, &pixmap, &hw, &hh);
//  XReadBitmapFile(display, root, argv[2], &w, &h, &shape, &hw, &hh);
  win = XCreateSimpleWindow(display, root, 100, 100, w, h, 0, black, black);
  XSetWindowBackgroundPixmap(display, win, pixmap);
//  XShapeCombineMask(display, win, ShapeBounding, 0, 0, shape, ShapeSet);
  a = XInternAtom(display, "WM_DELETE_WINDOW", False);
  XSetWMProtocols(display, win, &a, 1);
  XStringListToTextProperty(&argv[1], 1, &t);
  XSetWMName(display, win, &t);
  XSelectInput(display, win, StructureNotifyMask);
  XMapWindow(display, win);

  while (!quit) {
    XNextEvent(display, &event);
    if (event.type == ClientMessage) quit = 1;
  }

  XCloseDisplay(display);

  return 0;
}