c# 截屏打印功能

private void button3_Click(object sender, EventArgs e)
{
// 截屏

Form form = this;
if (form != null)
{
Graphics mygraphics = form.CreateGraphics();
memoryImage = new Bitmap(form.Width, form.Height, mygraphics);
Graphics memoryGraphics = Graphics.FromImage(memoryImage);
memoryGraphics.CopyFromScreen(form.Location.X, form.Location.Y, 0, 0, form.Size);
}

// 设置打印文档名（如果使用Adobe PDF或者Microsoft Office Document Image Writer打印，则作为默认输出文件名）
this.printDocument1.DocumentName = this.label6.Text;

this.printDocument1.Print();
}

// printDocument1的PrintPage事件
private void printDocument1_PrintPage(object sender, PrintPageEventArgs e)
{
e.Graphics.Clear(Color.White);
e.Graphics.DrawImage(memoryImage, 0, 0);
}

//定义一个图片
private Bitmap memoryImage = null;
}