--- a/examples/svg2code_ex/main.c	Thu Aug 21 14:13:50 2008 +0800
+++ b/examples/svg2code_ex/main.c	Fri Aug 22 00:12:04 2008 +0800
@@ -3,16 +3,41 @@
 #include <X_supp.h>
 #include "svg2code_ex.h"
 
+typedef struct _ex_rt ex_rt_t;
+struct _ex_rt {
+    X_MB_runtime_t *rt;
+    svg2code_ex_t *code;
+};
+
+static void file_button_handler(event_t *evt, void *arg) {
+    ex_rt_t *ex_rt = (ex_rt_t *)arg;
+
+    coord_show(ex_rt->code->file_menu);
+    rdman_coord_changed(ex_rt->rt->rdman, ex_rt->code->file_menu);
+    rdman_redraw_changed(ex_rt->rt->rdman);
+}
+
 int main(int argc, char * const argv[]) {
     X_MB_runtime_t rt;
     svg2code_ex_t *svg2code;
+    ob_factory_t *factory;
+    subject_t *subject;
+    ex_rt_t ex_rt;
     int r;
 
     r = X_MB_init(":0.0", 800, 600, &rt);
 
     svg2code = svg2code_ex_new(rt.rdman);
-    X_MB_handle_connection(rt.display, rt.rdman, rt.tman);
 
+    factory = rdman_get_ob_factory(rt.rdman);
+    subject = coord_get_mouse_event(svg2code->file_button);
+    ex_rt.rt = &rt;
+    ex_rt.code = svg2code;
+    subject_add_observer(factory, subject, file_button_handler, &ex_rt);
+
+    X_MB_handle_connection(&rt);
+
+    svg2code_ex_free(svg2code);
     X_MB_destroy(&rt);
 
     return 0;