duilib窗口拖动

直接使用如下就可以了，不用再使用继承。

LRESULT CXmlWnd::OnNcHitTest(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
    POINT           pt;
    RECT            rcClient;
    RECT            rcCaption;
    CControlUI *    pControl = NULL;
 
    rcCaption = m_PaintManager.GetCaptionRect();
    GetClientRect(m_PaintManager.GetPaintWindow(), &rcClient);
    pt.x = GET_X_LPARAM(lParam);
    pt.y = GET_Y_LPARAM(lParam);
    ::ScreenToClient(m_PaintManager.GetPaintWindow(), &pt);
 
    if (-1 == rcCaption.bottom) ///< xml中描述bottom为-1时，整个窗口区域都可以拖动
    {
        rcCaption.bottom = rcClient.bottom;
    }
 
    if ((pt.x >= rcClient.left)
        && (pt.x < rcClient.right)
        && (pt.y >= rcCaption.top) 
        && (pt.y < rcCaption.bottom)) 
    {
        pControl = m_PaintManager.FindControl(pt);
        if (IsInStaticControl(pControl))
        {
            return HTCAPTION;
        }
    }
 
    return __super::OnNcHitTest(uMsg, wParam, lParam, bHandled);
}
 
//
BOOL CXmlWnd::IsInStaticControl(CControlUI * pControl)
{
    CDuiString strClassName;
    std::vector vctStaticName;
    std::vector::iterator it;
 
    if (NULL == pControl)
        return FALSE;
    
    strClassName = pControl->GetClass();
    strClassName.MakeLower();
    vctStaticName.push_back(L"controlui");
    vctStaticName.push_back(L"textui");
    vctStaticName.push_back(L"labelui");
    vctStaticName.push_back(L"containerui");
    vctStaticName.push_back(L"horizontallayoutui");
    vctStaticName.push_back(L"verticallayoutui");
    vctStaticName.push_back(L"tablayoutui");
    vctStaticName.push_back(L"childlayoutui");
    vctStaticName.push_back(L"dialoglayoutui");
 
    it = std::find(vctStaticName.begin(), vctStaticName.end(), strClassName);
    return (it != vctStaticName.end());
}

此外：我的caption设置的为caption="0,0,40,40"   ，只能再标题栏中进行拖动窗口。

如果设置为caption="0,0,0,-1"时，整个界面任一点都可以拖动，且需要IsInStaticControl 中将所有需要响应消息的名字如button  edit等进行添加上

注意： HTCLIENT;//客户区，是不响应移动消息的，直接响应button的消息

return HTCAPTION;//标题栏，只有标题栏处才会响应鼠标拖动

参考：https://blog.csdn.net/lostspeed/article/details/19275249https://blog.csdn.net/lostspeed/article/details/19275249