打印功能探求之路三

来源：互联网发布：it产业编辑：程序博客网时间：2024/05/21 18:37

来自于网络上的资料

利用下属代码可以实现打印当前窗口的图片

private void button5_Click(object sender, System.EventArgs e)

{

SendKeys.Send("%{PRTSC}"); //等价于alt+printScreen

Application.DoEvents();//Processes all Windows messages curre0ntly in the message queue

this.printDocument1.Print();

}

private void printDocument1_PrintPage(object sender,System.Drawing.Printing.PrintPageEventArgs e)

{

IDataObject iData = Clipboard.GetDataObject ();

Image img = (Image)iData.GetData (DataFormats.Bitmap);

e.Graphics.DrawImage(img,0,0);

}

利用下属代码也可以实现打印当前窗口的图片

打印当前窗体（VS 2005 以上版本）

using System;
using System.Windows.Forms;
using System.Drawing;
using System.Drawing.Printing;

public class Form1 : Form
{
private Button printButton = new Button();
private PrintDocument printDocument1 = new PrintDocument();

public Form1()
{
printButton.Text = "Print Form";
printButton.Click += new EventHandler(printButton_Click);
printDocument1.PrintPage += new PrintPageEventHandler(printDocument1_PrintPage);
this.Controls.Add(printButton);
}

void printButton_Click(object sender, EventArgs e)
{
CaptureScreen();
printDocument1.Print();
}

Bitmap memoryImage;

private void CaptureScreen()
{
Graphics myGraphics = this.CreateGraphics();
Size s = this.Size;
memoryImage = new Bitmap(s.Width, s.Height, myGraphics);
Graphics memoryGraphics = Graphics.FromImage(memoryImage);
memoryGraphics.CopyFromScreen(this.Location.X, this.Location.Y, 0, 0, s);

            //memorybitmap.Save(@"c:/b.bmp")
        }

private void printDocument1_PrintPage(System.Object sender,
System.Drawing.Printing.PrintPageEventArgs e)
{
                e.Graphics.DrawImage(memoryImage, 0, 0);
}

public static void Main()
{
Application.Run(new Form1());
}
}