SOUI中的消息通信¶

// 发送自定义消息
::SendMessage(hWndHost, WM_MYMSG, wParam, lParam);

// 或使用PostMessage
::PostMessage(hWndHost, WM_MYMSG, wParam, lParam);

// 自定义消息定义
#define WM_MYMSG (WM_USER+100)

// 消息处理函数
LRESULT OnMyMsg(UINT uMsg, WPARAM wp, LPARAM lp, BOOL& bHandled)
{
    // 处理消息
    return 0;
}

// 消息映射表（WTL风格）
BEGIN_MSG_MAP_EX(CMainDlg)
    MESSAGE_HANDLER(WM_MYMSG, OnMyMsg)
    MSG_WM_CREATE(OnCreate)
    MSG_WM_DESTROY(OnDestory)
    CHAIN_MSG_MAP(SHostWnd)
    REFLECT_NOTIFICATIONS_EX()
END_MSG_MAP()

// 发送消息到SOUI窗口
pWindow->SSendMessage(uMsg, wParam, lParam);

class SMyWindow : public SWindow
{
protected:
    void OnPaint(IRenderTarget *pRT);
    void OnLButtonDown(UINT nFlags, CPoint pt);
    void OnMouseMove(UINT nFlags, CPoint pt);

    SOUI_MSG_MAP_BEGIN()
        MSG_WM_PAINT_EX(OnPaint)
        MSG_WM_LBUTTONDOWN(OnLButtonDown)
        MSG_WM_MOUSEMOVE(OnMouseMove)
    SOUI_MSG_MAP_END()
};

// 自定义事件参数
class EventMyCustom : public TplEventArgs<EventMyCustom>
{
    SOUI_CLASS_NAME(EventMyCustom, L"on_my_custom")
public:
    EventMyCustom(SObject *pSender) : TplEventArgs<EventMyCustom>(pSender) {}

    int eventData;  // 事件数据
};

void SMyWindow::TriggerCustomEvent()
{
    EventMyCustom evt(this);
    evt.eventData = 100;
    FireEvent(evt);
}

// 事件处理函数
BOOL OnMyCustomEvent(EventMyCustom *pEvt)
{
    int data = pEvt->eventData;
    return TRUE;
}

// 事件映射
EVENT_MAP_BEGIN()
    EVENT_HANDLER(EventMyCustom::EventID, OnMyCustomEvent)
EVENT_MAP_END()

// 订阅特定窗口的事件
pWindow->subscribeEvent(EventMyCustom::EventID, 
    [](EventArgs *e)->bool{
        EventMyCustom *evt = (EventMyCustom*)e;
        // 处理事件
        return true;
    });