diff --git a/rtgui/SConscript b/rtgui/SConscript
index 531ce750bf..8d8473d03c 100644
--- a/rtgui/SConscript
+++ b/rtgui/SConscript
@@ -41,6 +41,7 @@ widgets/container.c
 widgets/iconbox.c
 widgets/label.c
 widgets/progressbar.c
+widgets/radiobox.c
 widgets/slider.c
 widgets/staticline.c
 widgets/textbox.c
diff --git a/rtgui/common/rtgui_system.c b/rtgui/common/rtgui_system.c
index d56c1220f0..ffbf50c109 100644
--- a/rtgui/common/rtgui_system.c
+++ b/rtgui/common/rtgui_system.c
@@ -131,6 +131,9 @@ static void rtgui_event_dump(rt_thread_t tid, rtgui_event_t* event)
 
 			if(info->wid != RT_NULL)
 				rt_kprintf("win: %s", info->wid->title);
+#ifdef RTGUI_USING_SMALL_SIZE
+			rt_kprintf(" clip no. %d", info->num_rect);
+#endif
 		}
 		break;
 
@@ -325,6 +328,8 @@ rt_err_t rtgui_thread_send(rt_thread_t tid, rtgui_event_t* event, rt_size_t even
 	struct rtgui_thread* thread;
 
 	rtgui_event_dump(tid, event);
+	if (event->type != RTGUI_EVENT_TIMER)
+		rt_kprintf("event size: %d\n", event_size);
 
 	/* find rtgui_thread */
 	thread = (struct rtgui_thread*) (tid->user_data);
@@ -338,6 +343,7 @@ rt_err_t rtgui_thread_send_urgent(rt_thread_t tid, rtgui_event_t* event, rt_size
 	struct rtgui_thread* thread;
 
 	rtgui_event_dump(tid, event);
+	rt_kprintf("event size: %d\n", event_size);
 
 	/* find rtgui_thread */
 	thread = (struct rtgui_thread*) (tid->user_data);
@@ -354,6 +360,7 @@ rt_err_t rtgui_thread_send_sync(rt_thread_t tid, rtgui_event_t* event, rt_size_t
 	struct rt_mailbox ack_mb;
 
 	rtgui_event_dump(tid, event);
+	rt_kprintf("event size: %d\n", event_size);
 
 	/* init ack mailbox */
 	r = rt_mb_init(&ack_mb, "ack", &ack_buffer, 1, 0);
diff --git a/rtgui/include/rtgui/event.h b/rtgui/include/rtgui/event.h
index 206a7171d5..50ad4887e2 100644
--- a/rtgui/include/rtgui/event.h
+++ b/rtgui/include/rtgui/event.h
@@ -172,9 +172,6 @@ struct rtgui_event_win_create
 {
 	struct rtgui_event parent;
 
-	/* the window event mask */
-	rt_uint32_t mask;
-
 	/* the window flag */
 	rt_uint32_t flag;
 
diff --git a/rtgui/include/rtgui/rtgui_config.h b/rtgui/include/rtgui/rtgui_config.h
index 65e6c40b90..7c1eee618c 100644
--- a/rtgui/include/rtgui/rtgui_config.h
+++ b/rtgui/include/rtgui/rtgui_config.h
@@ -18,19 +18,17 @@
 /* RTGUI options */
 
 /* name length of RTGUI object */
-#define RTGUI_NAME_MAX		16
+#define RTGUI_NAME_MAX		12
 
 /* #define RTGUI_USING_MOUSE_CURSOR */
 
-// #define RTGUI_USING_FONT12
-
 #define RTGUI_USING_FONT16
 #define RTGUI_USING_FONTHZ
 
 #ifdef _WIN32
 #define RTGUI_USING_STDIO_FILERW
 #define RTGUI_IMAGE_PNG
-#define RTGUI_IMAGE_JPG
+#define RTGUI_IMAGE_JPEG
 
 #define RTGUI_USING_FONT12
 #else
diff --git a/rtgui/server/topwin.c b/rtgui/server/topwin.c
index f987880132..dc0fd1480b 100644
--- a/rtgui/server/topwin.c
+++ b/rtgui/server/topwin.c
@@ -75,7 +75,6 @@ rt_err_t rtgui_topwin_add(struct rtgui_event_win_create* event)
 	topwin->wid 	= event->wid;
 	topwin->extent 	= event->extent;
 	topwin->tid 	= event->parent.sender;
-	topwin->mask	= event->mask;
 
 	topwin->flag 	= 0;
 	if (event->flag & RTGUI_WIN_STYLE_NO_TITLE) topwin->flag |= WINTITLE_NO;
@@ -279,6 +278,7 @@ void rtgui_topwin_raise(struct rtgui_win* wid, rt_thread_t sender)
 		rt_int32_t count;
 		struct rtgui_list_node* node;
 		struct rtgui_event_clip_info eclip;
+		RTGUI_EVENT_CLIP_INFO_INIT(&eclip);
 
 		/* the window is already placed in front */
 		if (&(topwin->list) == _rtgui_topwin_show_list.next)
@@ -741,6 +741,8 @@ static void rtgui_topwin_update_clip()
 	struct rtgui_event_clip_info eclip;
 	struct rtgui_list_node* node = _rtgui_topwin_show_list.next;
 
+	RTGUI_EVENT_CLIP_INFO_INIT(&eclip);
+
 	rtgui_list_foreach(node, &_rtgui_topwin_show_list)
 	{
 		struct rtgui_topwin* wnd;
diff --git a/rtgui/widgets/filelist_view.c b/rtgui/widgets/filelist_view.c
index 75b75ac8f1..406029ed9f 100644
--- a/rtgui/widgets/filelist_view.c
+++ b/rtgui/widgets/filelist_view.c
@@ -688,6 +688,6 @@ void rtgui_filelist_get_fullpath(rtgui_filelist_view_t* view, char* path, rt_siz
 {
 	RT_ASSERT(view != RT_NULL);
 
-	rt_sprintf(path, "%s/%s", view->current_directory, 
+	rt_sprintf(path, "%s%c%s", view->current_directory, PATH_SEPARATOR,
 		view->items[view->current_item].name);
 }
\ No newline at end of file
diff --git a/rtgui/widgets/window.c b/rtgui/widgets/window.c
index 32e95a2ffd..33b51126d4 100644
--- a/rtgui/widgets/window.c
+++ b/rtgui/widgets/window.c
@@ -80,7 +80,6 @@ static rt_bool_t _rtgui_win_create_in_server(rtgui_win_t* win)
 		ecreate.wid 	= win;
 		ecreate.extent 	= RTGUI_WIDGET(win)->extent;
 		ecreate.flag 	= win->style;
-		ecreate.mask 	= 0;
 		rt_strncpy((char*)ecreate.title, (char*)win->title, RTGUI_NAME_MAX);
 
 		if (rtgui_thread_send_sync(server, RTGUI_EVENT(&ecreate),
diff --git a/rtgui/widgets/workbench.c b/rtgui/widgets/workbench.c
index a8d52b8484..5ac2cd2452 100644
--- a/rtgui/widgets/workbench.c
+++ b/rtgui/widgets/workbench.c
@@ -24,6 +24,7 @@ static void _rtgui_workbench_constructor(rtgui_workbench_t *workbench)
 	workbench->panel = RT_NULL;
 	workbench->flag = RTGUI_WORKBENCH_FLAG_DEFAULT;
 	workbench->modal_code = RTGUI_MODAL_OK;
+	workbench->title = RT_NULL;
 	workbench->current_view = RT_NULL;
 }