C#实现在图像中绘制文字图形的方法

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
namespace WindowsApplication2
{
  public partial class Form20 : Form
  {
    public Form20()
    {
      InitializeComponent();
    }
    private void Form20_Load(object sender, EventArgs e)
    {
    }
    private void button1_Click(object sender, EventArgs e)
    {
      Rectangle rect = new Rectangle(0, 0, 100, 100);
      Graphics dg = this.CreateGraphics();
      Image image = new Bitmap(rect.Width, rect.Height, dg);
      Graphics ig = Graphics.FromImage(image);
      ig.FillRectangle(Brushes.Black, rect);
      Font font = new Font("Arial", 12);
      Brush brush = System.Drawing.Brushes.White;
      ig.DrawString("zhuzhao", font, brush,0, 0);
      //ImageFormat iformat=new ImageFormat(new Guid(Bmp));
      image.Save(@"c:/image.png");
      dg.DrawImage(image,new PointF(100,100));
    }
  }
}