图像的绘制,剪切,旋转,添加文字.生成图像的缩略图

图像的绘制,剪切,旋转,添加文字.生成图像的缩略图

1 //按指定大小绘制图像
2 private void button1_Click(object sender, System.EventArgs e)
3private void button2_Click(object sender, System.EventArgs e)
2
17 private void button3_Click(object sender, System.EventArgs e)
18
50 private void button4_Click(object sender, System.EventArgs e)
51 public bool ThumbnailCallback()
79using System;
2using System.Drawing;
3using System.Collections;
4using System.ComponentModel;
5using System.Windows.Forms;
6using System.Data;
7using System.Drawing.Drawing2D;
8using System.Drawing.Imaging ;