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给定以下命名空间,我在哪里放置我的declspec(用于dll导出)我想将所述命名空间中的所有方法导出到DLL中？

namespace AguiText {
    void drawTextArea(AguiGraphicsManager *g, const AguiFont &font,const AguiRectangle &area,
        const AguiColor &color, const std::vector<std::string> &lines,
        AguiHorizontalAlignmentEnum horizontalAlignment, AguiVerticalAlignmentEnum verticalAlignment);

    void divideText(std::vector<std::string> &words, 
        const std::string &text,const AguiFont &font, int maxWidth = -1);
    void makeTextLines(const AguiFont &font,const std::vector<std::string> &words,
        std::vector<std::string> &lineWords, int maxWidth );
    void pointInTextArea(const AguiFont &font, 
        const AguiRectangle &area, const AguiPoint &point, 
        const std::vector<std::string> &lines, AguiRectangle &retRect,
        int &retIndex, AguiHorizontalAlignmentEnum horizontalAlignment, AguiVerticalAlignmentEnum verticalAlignment);

}

谢谢