--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/dynamic/hello.c	Thu Jan 01 08:32:03 2009 +0800
@@ -0,0 +1,66 @@
+/*! \file
+ *
+ * svg2code_ex is an example that show programmers how to create a
+ * menu with MadButterfly.
+ *
+ */
+#include <stdio.h>
+#include <mb.h>
+#include <string.h>
+#include "menu.h"
+#include "mbapp.h"
+
+
+MBApp *myApp;
+
+typedef struct {
+    shape_t *rect;
+    co_aix orx,ory;
+    int start_x,start_y;
+    observer_t *obs1,*obs2;
+    int currentscene;
+}MyAppData;
+
+
+void switch_scene(const mb_timeval_t *tmo, const mb_timeval_t *now,void *arg)
+{
+    MyAppData *en = MBAPP_DATA((MBApp *)arg,MyAppData );
+    mb_timeval_t timer,interval;
+
+    
+    get_now(&timer);
+    MB_TIMEVAL_SET(&interval, 1 ,0);
+    MB_TIMEVAL_ADD(&timer, &interval);
+    mb_tman_timeout( MBApp_getTimer(myApp), &timer, switch_scene, myApp);
+
+    en->currentscene = (en->currentscene + 1) % 2;
+    printf("switch to scene %d\n", en->currentscene + 1);
+    MB_SPRITE_GOTO_SCENE(myApp->rootsprite,en->currentscene + 1);
+}
+
+int main(int argc, char * const argv[]) {
+    subject_t *subject;
+    mb_button_t *b;
+    mb_obj_t *button;
+    MyAppData data;
+    mb_timeval_t tmo,interval;
+
+    if (argc > 1) 
+	    myApp = MBApp_Init(argv[1]);
+    else
+	    myApp = MBApp_Init("scene");
+    data.currentscene=0;
+    MBApp_setData(myApp,&data);
+    //b = mb_button_new(myApp, myApp->rootsprite, "btn");
+    //mb_button_add_onClick(b, test,NULL);
+    get_now(&tmo);
+    MB_TIMEVAL_SET(&interval, 1 ,0);
+    mb_tman_timeout( MBApp_getTimer(myApp), &tmo, switch_scene, myApp);
+    
+
+    MBApp_loop(myApp);
+
+    return 0;
+}
+
+/* vim: set ts=4 */