【已解決】DuiLib tooltip閃爍

我是在GitHub上下載的代碼

https://github.com/duilib/duilib

在本地用VS2017打開

順手給ListDemo裏的每行信息加了一個tooltip，

實測結果發現tooltip會跟隨鼠標，但是存在問題：鼠標懸停時tooltip閃爍

這個又是DuiLib的坑麼

有大神幫忙看下咋回事呢，如何修復此問題啊

------------DuiLib描繪Tooltip的原始代碼裏，還寫着有解決tooltip閃爍的。。。

\DuiLib\Core\UIManager.cpp

bool CPaintManagerUI::MessageHandler(UINT uMsg, WPARAM wParam, LPARAM lParam, LRESULT& lRes)

    case WM_MOUSEHOVER:


            CDuiString sToolTip = pHover->GetToolTip();
            if (sToolTip.IsEmpty()) return true;
            ProcessMultiLanguageTokens(sToolTip);
            ::ZeroMemory(&m_ToolTip, sizeof(TOOLINFO));
            m_ToolTip.cbSize = sizeof(TOOLINFO);
            m_ToolTip.uFlags = TTF_IDISHWND;
            m_ToolTip.hwnd = m_hWndPaint;
            m_ToolTip.uId = (UINT_PTR)m_hWndPaint;
            m_ToolTip.hinst = m_hInstance;
            m_ToolTip.lpszText = const_cast<LPTSTR>((LPCTSTR)sToolTip);
            m_ToolTip.rect = pHover->GetPos();
            if (m_hwndTooltip == NULL) {
                m_hwndTooltip = ::CreateWindowEx(0, TOOLTIPS_CLASS, NULL, WS_POPUP | TTS_NOPREFIX | TTS_ALWAYSTIP, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, m_hWndPaint, NULL, m_hInstance, NULL);
                ::SendMessage(m_hwndTooltip, TTM_ADDTOOL, 0, (LPARAM)&m_ToolTip);
                ::SendMessage(m_hwndTooltip, TTM_SETMAXTIPWIDTH, 0, pHover->GetToolTipWidth());
                ::SendMessage(m_hwndTooltip, TTM_SETTOOLINFO, 0, (LPARAM)&m_ToolTip);
                ::SendMessage(m_hwndTooltip, TTM_TRACKACTIVATE, TRUE, (LPARAM)&m_ToolTip);

            }
            // by jiangdong 2016-8-6 修改tooltip 懸停時候 閃爍bug
            if (m_pLastToolTip == NULL) {
                m_pLastToolTip = pHover;
            }
            else{
                if (m_pLastToolTip == pHover){
                    if (m_iLastTooltipWidth != pHover->GetToolTipWidth()){
                        ::SendMessage(m_hwndTooltip, TTM_SETMAXTIPWIDTH, 0, pHover->GetToolTipWidth());
                        m_iLastTooltipWidth = pHover->GetToolTipWidth();

                    }
                    ::SendMessage(m_hwndTooltip, TTM_SETTOOLINFO, 0, (LPARAM)&m_ToolTip);
                    ::SendMessage(m_hwndTooltip, TTM_TRACKACTIVATE, TRUE, (LPARAM)&m_ToolTip);
                }
                else{
                    ::SendMessage(m_hwndTooltip, TTM_SETMAXTIPWIDTH, 0, pHover->GetToolTipWidth());
                    ::SendMessage(m_hwndTooltip, TTM_SETTOOLINFO, 0, (LPARAM)&m_ToolTip);
                    ::SendMessage(m_hwndTooltip, TTM_TRACKACTIVATE, TRUE, (LPARAM)&m_ToolTip);
                }
            }
            //修改在CListElementUI 有提示 子項無提示下無法跟隨移動！（按理說不應該移動的）
            ::SendMessage(m_hwndTooltip, TTM_TRACKPOSITION, 0, (LPARAM)(DWORD)MAKELONG(pt.x, pt.y));

對比了DuiLib_Ultimate，發現此處沒有那麼複雜的邏輯，最終修改如下：

                if( m_hwndTooltip == NULL ) {
                    m_hwndTooltip = ::CreateWindowEx(0, TOOLTIPS_CLASS, NULL, WS_POPUP | TTS_NOPREFIX | TTS_ALWAYSTIP, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, m_hWndPaint, NULL, m_hInstance, NULL);
                    ::SendMessage(m_hwndTooltip, TTM_ADDTOOL, 0, (LPARAM) &m_ToolTip);
                    ::SendMessage(m_hwndTooltip,TTM_SETMAXTIPWIDTH,0, pHover->GetToolTipWidth());
                }
                if(!::IsWindowVisible(m_hwndTooltip))
                {
                    ::SendMessage(m_hwndTooltip, TTM_SETTOOLINFO, 0, (LPARAM)&m_ToolTip);
                    ::SendMessage(m_hwndTooltip, TTM_TRACKACTIVATE, TRUE, (LPARAM)&m_ToolTip);
                }

                ::SendMessage(m_hwndTooltip, TTM_TRACKPOSITION, 0, (LPARAM)(DWORD)MAKELONG(pt.x, pt.y));

tooltip不再閃爍，且會跟着鼠標自動移動。