模式对话框退出后，原先的显示窗口接收不到键盘消息

发布于 2012-09-18 14:18:45 浏览：3398 订阅该版

大致代码如下：
1. 显示窗口的创建
        rt_mq_t mq;
	struct rtgui_win *win;
	struct rtgui_rect rect;

mq = rt_mq_create("workbench", 256, 8, RT_IPC_FLAG_FIFO);
	rtgui_thread_register(rt_thread_self(), mq);
	
	// 创建窗口
	rect.x1 = 0;
	rect.y1 = 0;
	rect.x2 = LCD_WIDTH;
	rect.y2 = LCD_HEIGHT;
	win = rtgui_win_create(RT_NULL, "win", &rect, RTGUI_WIN_STYLE_DEFAULT);
	rtgui_win_show(win, RT_FALSE);
	
	// 消息循环
	rtgui_widget_set_event_handler(RTGUI_WIDGET(win), OnEventHandler);
	rtgui_win_event_loop(win);
	
	rtgui_thread_deregister(rt_thread_self());
	rt_mq_delete(mq);
2. 模式对话框创建[在显示对话框的按键消息处理中]
rt_bool_t OnEventHandler(rtgui_widget_t *widget, rtgui_event_t *event)
{
	if (event->type == RTGUI_EVENT_KBD)
	{
		struct rtgui_event_kbd *kbd = (struct rtgui_event_kbd *)event;
		if(kbd->key == RTGUIK_KP_ENTER)
                {
                        rect.x1 = 100;		rect.x2 = 700;
			rect.y1 = 160;		rect.y2 = 200;
			win = rtgui_win_create(RT_NULL, "模式对话框", &rect, RTGUI_WIN_STYLE_DEFAULT);
			rtgui_widget_set_event_handler(RTGUI_WIDGET(win), OnPopupHandler);
			rtgui_win_show(win, RT_TRUE);// 模式显示
                }
	}
	return rtgui_win_event_handler(widget, event);
}
3. 模式对话框消息处理
rt_bool_t OnPopupHandler(rtgui_widget_t *widget, rtgui_event_t *event)
{
	if (event->type == RTGUI_EVENT_KBD)
	{
		rtgui_win_closeRTGUI_WIN(widget));
		return TRUE;
	}
	return rtgui_win_event_handler(widget, event);
}
4. 按键消息的发送
struct rtgui_event_kbd kbd_event;
RTGUI_EVENT_KBD_INIT(&kbd_event);
kbd_event.mod  = RTGUI_KMOD_NONE;
kbd_event.unicode = 0;
kbd_event.key = KeyMap*[j];
kbd_event.type = RTGUI_KEYDOWN;
rtgui_server_post_event(&(kbd_event.parent), sizeof(kbd_event));

模式对话框退出后，原先的显示窗口接收不到键盘消息。
请高手指教啊！

9 个回答

raulshao 2012-09-18

这家伙很懒，什么也没写！

raulshao 2012-09-19

这家伙很懒，什么也没写！

bernard 2012-09-19

这家伙很懒，什么也没写！

raulshao 2012-09-19

这家伙很懒，什么也没写！

raulshao 2012-09-19

这家伙很懒，什么也没写！

bernard 2012-09-19

这家伙很懒，什么也没写！

raulshao 2012-09-19

这家伙很懒，什么也没写！

raulshao 2012-09-19

这家伙很懒，什么也没写！

>>>GUI的1.1.0版本就是RTT的1.1.0版本吗？
>>
>>---
>>
>>
>>
>>是的。因为1.0.0中的GUI较少人使用，我们已经不对它提供支持了。
>
>---
>
>
>谢谢，我试一下。

---

非常感谢[quote]，这个问题已经解决了，分享一下代码：
void UITask(void *lp)
{
	rt_device_t lcd;
	struct rtgui_application *app;
	
	
	lcd = rt_device_find("lcd");
	if (lcd != RT_NULL)
	{
		rtgui_graphic_set_device(lcd);
		rtgui_system_server_init();
		
		app = rtgui_application_create(rt_thread_self(), "gui_demo");
		if (app == RT_NULL)
			return;
		
		rtgui_graphic_driver_get_rect(rtgui_graphic_driver_get_default(), &rect);
		main_win = rtgui_win_create(RT_NULL, "demo_win", &rect, RTGUI_WIN_STYLE_NO_BORDER | RTGUI_WIN_STYLE_NO_TITLE);
		if (main_win == RT_NULL)
		{
			rtgui_application_destroy(app);
			return;
		}
		rtgui_win_set_onkey(main_win, demo_handle_key);
		rtgui_win_show(main_win, RT_FALSE);
		rtgui_application_run(app);
		rtgui_application_destroy(app);
	}
}

static rt_bool_t demo_handle_key(struct rtgui_object* object, struct rtgui_event* event)
{
	struct rtgui_event_kbd* ekbd = (struct rtgui_event_kbd*)event;

if (ekbd->type == RTGUI_KEYDOWN)
	{
		rt_kprintf("[win.%x]", ekbd->key);
		
			rect.x1 = 100;		rect.x2 = 700;
			rect.y1 = 50;		rect.y2 = 100;
			pop_win = rtgui_win_create(main_win, "pop_win", &rect, RTGUI_WIN_STYLE_DEFAULT);
			rtgui_win_set_onkey(pop_win, pop_handle_key);
			rtgui_win_show(pop_win, RT_TRUE);
			
			rt_kprintf("[pop.close]");
	}
	return RT_TRUE;
}

static rt_bool_t pop_handle_key(struct rtgui_object* object, struct rtgui_event* event)
{
	struct rtgui_event_kbd* ekbd = (struct rtgui_event_kbd*)event;

if (ekbd->type == RTGUI_KEYDOWN)
	{
		rt_kprintf("[pop.%x]", ekbd->key);
		rtgui_win_close(RTGUI_WIN(object));

}
	return RT_TRUE;
}
键盘消息发送如原帖。