struct DisplayDrawContext
{
    Draw&        draw;
    const Value& value;
    Rect         rect;
    Color        ink   = SColorText;
    Color        paper = SColorPaper;
    dword        style = 0;
    DisplayDrawContext(Drww& w, const Value& q, const Rect& r) : draw(w), value(q), rect(r) {}
};

MyDisplay().Paint(DisplayDrawContext(w, q, r));