使用C#实现图片的放大、缩小以及局部放大功能

C#实现放大图像区域 private void pictureBox1_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e) { Cursor.Current=myCursor; Rectangle sourceRectangle=new Rectangle(e.X-10,e.Y-10,20,20); //要放大的区域 //Rectangle destRectangle=new Rectangle(e.X-20,e.Y-20,40,40); Rectangle destRectangle=new Rectangle(pictureBox1.Width-150,pictureBox1.Height-150,pictureBox1.Width,pictureBox1.Height); //放大的比例 g.DrawImage(myImage,destRectangle,sourceRectangle,GraphicsUnit.Pixel); }