soui-线程内更新界面，sendmessage

#define WM_MYMSG (WM_USER+100)

LRESULT OnMyMsg(UINT uMsg, WPARAM wp, LPARAM lp, BOOL & bHandled);

//HostWnd真实窗口消息处理
BEGIN_MSG_MAP_EX(CDlgLogin)
	MESSAGE_HANDLER(WM_MYMSG, OnMyMsg)
	MSG_WM_CREATE(OnCreate)
  ...


LRESULT CDlgLogin::OnMyMsg(UINT uMsg, WPARAM wp, LPARAM lp, BOOL & bHandled)
{
    return 0;
}

::PostMessage(pwnd->m_hWnd, WM_MYMSG, 2, 0);