C ++ Gdiplus ::字体改变字体大小和字体

Gdiplus::Graphics g(hDC);
Gdiplus::Font *f = new Font(L"Times new roman", 16);
Gdiplus::SolidBrush b(Gdiplus::Color(255,0,0,0));

g.DrawString(L"Hello", 5, f, &Gdiplus::StringFormat(), &b);

// Now i want to change font styles
// using f->setSize() or f->setFontFamily().

g.DrawString(L"Hello", 5, f, &Gdiplus::StringFormat(), &b);