Added x.cpp

x.cpp

@@ -0,0 +1,50 @@
+// @COMPILECMD g++ $@ -o test.out -lX11 -lXtst -ggdb
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+
+int main()
+{
+    Display* display = XOpenDisplay(NULL);
+
+    XVisualInfo vinfo;
+    XMatchVisualInfo(display, DefaultScreen(display), 32, TrueColor, &vinfo);
+
+    XSetWindowAttributes attr;
+    attr.colormap = XCreateColormap(display, DefaultRootWindow(display), vinfo.visual, AllocNone);
+    attr.border_pixel = 0;
+    attr.background_pixel = 0;
+
+    Window win = XCreateWindow(display,
+		DefaultRootWindow(display),
+		0, 0,
+		300, 200,
+		0, vinfo.depth,
+		InputOutput, vinfo.visual,
+		CWColormap | CWBorderPixel | CWBackPixel, &attr
+	);
+
+    Atom wm_delete_window = XInternAtom(display, "WM_DELETE_WINDOW", 0);
+    XSetWMProtocols(display, win, &wm_delete_window, 1);
+
+    XMapWindow(display, win);
+
+    int keep_running = 1;
+
+    while (keep_running) {
+		XEvent event;
+        XNextEvent(display, &event);
+
+        switch(event.type) {
+            case ClientMessage: {
+                if (event.xclient.message_type == XInternAtom(display, "WM_PROTOCOLS", 1)
+				&& (Atom)event.xclient.data.l[0] == XInternAtom(display, "WM_DELETE_WINDOW", 1)) {
+                    keep_running = 0;
+				}
+			} break;
+        }
+    }
+
+    XDestroyWindow(display, win);
+    XCloseDisplay(display);
+    return 0;
+}