Event loop

main.c

@@ -1,6 +1,7 @@
 #include <stdio.h>
 #include <unistd.h>
 #include <X11/Xlib.h>
+#include <X11/Xutil.h>
 
 int main()
 {
@@ -10,7 +11,31 @@ int main()
 	XMapWindow(display, window);
 	XFlush(display);
 
-	for(;;) { sleep(1); }
+	Atom WM_DELETE_WINDOW = XInternAtom(display, "WM_DELETE_WINDOW", False);
+	if(!XSetWMProtocols(display, window, &WM_DELETE_WINDOW, 1)) 
+	{
+        	printf("Couldn't register WM_DELETE_WINDOW property \n");
+	}
+
+	int is_open = 1;
+	while(is_open)
+	{
+		XEvent general_event = {};
+        	XNextEvent(display, &general_event);
+
+		switch(general_event.type)
+		{
+			case ClientMessage:
+			{
+	         		XClientMessageEvent *event = (XClientMessageEvent *) &general_event;
+				if((Atom)event->data.l[0] == WM_DELETE_WINDOW) {
+				    XDestroyWindow(display, window);
+				    is_open = 0;
+				    printf("Window destroyed \n");
+				}
+	              	} break;
+		}
+	}
 
 	return 0;
 }