打印功能探求之路三

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());
        }
}