c++ - 如何从 GDI+ 图元文件对象中获取原始图元文件字节？

Question

我知道我可以从 GDI 的HENHMETAFILE usingGetEnhMetaFileBits函数中获取原始元文件字节。但是如何从 Gdiplus::MetafileGDI+ 的对象中获取原始字节？

Answer 1

    public static void Save(Metafile matafile, Stream stream)
    {
        using (stream)
        {
            using (Bitmap bit = new Bitmap(1, 1))
            {
                using (Graphics gs = Graphics.FromImage(bit))
                {
                    Rectangle rt = new Rectangle(0, 0, matafile.Width, matafile.Height);
                    using (Metafile mf = new Metafile(stream, gs.GetHdc(), rt, MetafileFrameUnit.Pixel, EmfType.EmfOnly))
                    {
                        using (Graphics g = Graphics.FromImage(mf))
                        {
                            g.DrawImage(matafile, rt);
                        }
                    }
                }
            }
        }
    }