winform label文本转换为图片 、Picturebox+label合并转换为图片

 public Form1()
        {
            InitializeComponent();
            //label存入Picturebox
            pictureBox1.Controls.Add(label1);
            pictureBox1.Controls.Add(label2);
        }

        private void button1_Click(object sender, EventArgs e)
        {
            //Picturebox+label合并转换成图片
            foreach (Label l in pictureBox1.Controls)
            {

                using (Brush brush = new SolidBrush(l.ForeColor))
                using (Graphics g = Graphics.FromImage(pictureBox1.Image))
                {
                    Rectangle rect = new Rectangle(l.Left - pictureBox1.Left, l.Top - pictureBox1.Top, l.Width, l.Height);
                    if (l.BackColor != Color.Transparent)
                    {
                        using (Brush bgBrush = new SolidBrush(l.BackColor))
                        {
                            g.FillRectangle(bgBrush, rect);
                        }
                    }
                    g.DrawString(l.Text, l.Font, brush, rect, StringFormat.GenericTypographic);
                }
            }
            pictureBox1.Image.Save("d:\abc.png", System.Drawing.Imaging.ImageFormat.Png);

            //文字转换成图片
            //string str =label1.Text;
            //Graphics g = Graphics.FromImage(new Bitmap(1, 1));
            //Font font = new Font("宋体", 9);
            //SizeF sizeF = g.MeasureString(str, font); //测量出字体的高度和宽度  
            //Brush brush; //笔刷，颜色  
            //brush = new SolidBrush(label1.ForeColor);
            //PointF pf = new PointF(0, 0);
            //Bitmap img = new Bitmap(Convert.ToInt32(sizeF.Width), Convert.ToInt32(sizeF.Height));
            //g = Graphics.FromImage(img);
            //g.DrawString(str, font, brush, pf);
            ////输出图片  
            //img.Save("d://123.jpg", System.Drawing.Imaging.ImageFormat.Gif);

        }