在用C#中,打印windowform窗体的源码!

Question

我对打印一无所知,希望大虾能够给源码以及必要的注释!!谢谢 各位了!
帮帮忙嘛!

Answer 1

[System.Runtime.InteropServices.DllImport("gdi32.dll")]
public static extern long BitBlt (IntPtr hdcDest, int nXDest, int nYDest, int nWidth, int nHeight, IntPtr hdcSrc, int nXSrc, int nYSrc, int dwRop);
private 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);
   IntPtr dc1 = mygraphics.GetHdc();
   IntPtr dc2 = memoryGraphics.GetHdc();
   BitBlt(dc2, 0, 0, this.ClientRectangle.Width, this.ClientRectangle.Height, dc1, 0, 0, 13369376);
   mygraphics.ReleaseHdc(dc1);
   memoryGraphics.ReleaseHdc(dc2);
}
private void printDocument1_PrintPage(System.Object sender, System.Drawing.Printing.PrintPageEventArgs e)
{
   e.Graphics.DrawImage(memoryImage, 0, 0);
}
private void printButton_Click(System.Object sender, System.EventArgs e)
{
   CaptureScreen();
   printDocument1.Print();

Answer 2

[System.Runtime.InteropServices.DllImport("gdi32.dll")]
public static extern long BitBlt (IntPtr hdcDest, int nXDest, int nYDest, int nWidth, int nHeight, IntPtr hdcSrc, int nXSrc, int nYSrc, int dwRop);
private 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);
IntPtr dc1 = mygraphics.GetHdc();
IntPtr dc2 = memoryGraphics.GetHdc();
//BitBlt(dc2, 20, 55, this.ClientRectangle.Width, this.ClientRectangle.Height, dc1, 20, 55, 13369376);
BitBlt(dc2, 20, 70, 560, 430, dc1, 20, 70, 13369376);
//BitBlt(dc2, 20, 70, this.ClientRectangle.Width, this.ClientRectangle.Height, dc1, 20, 70, 13369376);
mygraphics.ReleaseHdc(dc1);
memoryGraphics.ReleaseHdc(dc2);
}
private void printDocument1_PrintPage(System.Object sender, System.Drawing.Printing.PrintPageEventArgs e)
{
e.Graphics.DrawImage(memoryImage, 0, 0);
}
private void button2_Click(System.Object sender, System.EventArgs e)
{
CaptureScreen();
printPreviewDialog1.Document=printDocument1;
printPreviewDialog1.Show();
}

Answer 3

页面设置：
private void button1_Click(object sender, System.EventArgs e)
{
try
{
pageSetupDialog1.Document=printDocument1;
pageSetupDialog1.ShowDialog();
}
catch
{
MessageBox.Show("没有安装打印机");
}
}打印预览：
private void button2_Click(object sender, System.EventArgs e)
{
if(mPrintFont==null)
{
mPrintFont=new Font("新宋体",10);
}
mPrintRecordCount=0;
mCurrentPageNo=0;
mTotalPageCount=0;
printPreviewDialog1.Document=printDocument1;
printPreviewDialog1.ShowDialog();
}
设置字体：
private void button3_Click(object sender, System.EventArgs e)
{
fontDialog1.ShowDialog();
mPrintFont=fontDialog1.Font;

}打印：
private void button4_Click(object sender, System.EventArgs e)
{
printDialog1.Document=printDocument1;
if(mPrintFont==null)
{
mPrintFont=new Font("新宋体",10);
}
mPrintRecordCount=0;
mCurrentPageNo=0;
mTotalPageCount=0;
DialogResult result=printDialog1.ShowDialog();
if(result==DialogResult.OK)
{
printDocument1.Print();
}            
} private float PrintPageHeader(System.Drawing.Printing.PrintPageEventArgs e)
{
float yPos=e.MarginBounds.Top;
string line=null;
Font printTitleFont=new Font("宋体",18,FontStyle.Bold);
Font printHeaderFont=new Font("宋体",18,FontStyle.Bold);
StringFormat sfCenter=new StringFormat();
sfCenter.Alignment=StringAlignment.Center;
StringFormat sfRight=new StringFormat();
sfRight.Alignment=StringAlignment.Far;
StringFormat sfLeft=new StringFormat();
sfLeft.Alignment=StringAlignment.Near;
line="教师管理系统";
e.Graphics.DrawString(line,printTitleFont,Brushes.Black,new RectangleF(e.MarginBounds.Left,e.MarginBounds.Top,e.MarginBounds.Width,e.MarginBounds.Height),sfCenter);
yPos+=printTitleFont.GetHeight(e.Graphics);
line="教师管理报表";
e.Graphics.DrawString(line,printTitleFont,Brushes.Black,new RectangleF(e.MarginBounds.Left,e.MarginBounds.Top+printTitleFont.GetHeight(e.Graphics),e.MarginBounds.Width,e.MarginBounds.Height),sfCenter);
e.Graphics.DrawString("打印日期："+DateTime.Now.ToString("yyyy-MM-dd",null),mPrintFont,Brushes.Black,new RectangleF(e.MarginBounds.Left,e.MarginBounds.Top+printTitleFont.GetHeight(e.Graphics),e.MarginBounds.Width,e.MarginBounds.Height),sfLeft);
yPos+=printHeaderFont.GetHeight(e.Graphics);
try
{
//第一行
e.Graphics.DrawLine(new Pen(Color.Black,4),e.MarginBounds.Left,yPos,e.MarginBounds.Right,yPos);
yPos+=20;
//列头
float xPos=e.MarginBounds.Left;
e.Graphics.DrawString("教师号",mPrintFont,Brushes.Black,new RectangleF(xPos,yPos,e.Graphics.MeasureString("教师号",mPrintFont).Width,mPrintFont.GetHeight(e.Graphics)),sfLeft);
xPos+=e.Graphics.MeasureString("教师号",mPrintFont).Width;
e.Graphics.DrawString("姓名",mPrintFont,Brushes.Black,new RectangleF(xPos+30,yPos,e.Graphics.MeasureString("姓名",mPrintFont).Width,mPrintFont.GetHeight(e.Graphics)),sfLeft);
xPos+=e.Graphics.MeasureString("性别",mPrintFont).Width;
e.Graphics.DrawString("性别",mPrintFont,Brushes.Black,new RectangleF(xPos+60,yPos,e.Graphics.MeasureString("性别",mPrintFont).Width,mPrintFont.GetHeight(e.Graphics)),sfLeft);
xPos+=e.Graphics.MeasureString("年龄",mPrintFont).Width;
e.Graphics.DrawString("年龄",mPrintFont,Brushes.Black,new RectangleF(xPos+90,yPos,e.Graphics.MeasureString("年龄",mPrintFont).Width,mPrintFont.GetHeight(e.Graphics)),sfLeft);
yPos+=mPrintFont.GetHeight(e.Graphics);
//第二行
e.Graphics.DrawLine(new Pen(Color.Black,4),e.MarginBounds.Left,yPos,e.MarginBounds.Right,yPos);
yPos+=20;
//打印页数
float lpp=(e.MarginBounds.Height-yPos)/mPrintFont.GetHeight(e.Graphics);
mTotalPageCount=(ds1.Tables["teacher1"].Rows.Count/Convert.ToInt32(lpp))+1;
e.Graphics.DrawString("页数:"+mCurrentPageNo.ToString()+"/"+mTotalPageCount.ToString(),mPrintFont,Brushes.Black,new RectangleF(e.MarginBounds.Left,e.MarginBounds.Top,e.MarginBounds.Width,e.MarginBounds.Height),sfRight);
return yPos;
}
catch
{
MessageBox.Show("没有输入查询条件，请从新输入！");
return 0;
}
}
private void printDocument1_PrintPage_1(object sender, System.Drawing.Printing.PrintPageEventArgs e)
{
string line=null;
line="教师管理系统";
Font printTitleFont=new Font("宋体",18,FontStyle.Bold);
StringFormat sfCenter=new StringFormat();
sfCenter.Alignment=StringAlignment.Center;
e.Graphics.DrawString(line,printTitleFont,Brushes.Black,new RectangleF(e.MarginBounds.Left,e.MarginBounds.Top,e.MarginBounds.Width,e.MarginBounds.Height),sfCenter);
float lpp=0;
float yPos=0;
float leftMargin=e.MarginBounds.Left;
float topMargin=e.MarginBounds.Top;
float pageHeaderHiegh=0;
int count=0;
StringFormat sfLeft=new StringFormat();
sfLeft.Alignment=StringAlignment.Near;
mCurrentPageNo++;                                              
pageHeaderHiegh=PrintPageHeader(e);
lpp=(e.MarginBounds.Height-pageHeaderHiegh)/mPrintFont.GetHeight(e.Graphics);
try
{
while(count<lpp&&(mPrintRecordCount<ds1.Tables["teacher1"].Rows.Count))
{
float xPos=e.MarginBounds.Left;
yPos=pageHeaderHiegh+(count*mPrintFont.GetHeight(e.Graphics));
e.Graphics.DrawString(ds1.Tables["teacher1"].Rows[mPrintRecordCount]["教师号"].ToString(),mPrintFont,Brushes.Black,new RectangleF(xPos,yPos,e.Graphics.MeasureString("教师号",mPrintFont).Width,mPrintFont.GetHeight(e.Graphics)),sfLeft);
xPos+=e.Graphics.MeasureString("教师号",mPrintFont).Width;
e.Graphics.DrawString(ds1.Tables["teacher1"].Rows[mPrintRecordCount]["姓名"].ToString(),mPrintFont,Brushes.Black,new RectangleF(xPos+30,yPos,e.Graphics.MeasureString("姓名",mPrintFont).Width,mPrintFont.GetHeight(e.Graphics)),sfLeft);
xPos+=e.Graphics.MeasureString("姓名",mPrintFont).Width;
e.Graphics.DrawString(ds1.Tables["teacher1"].Rows[mPrintRecordCount]["性别"].ToString(),mPrintFont,Brushes.Black,new RectangleF(xPos+60,yPos,e.Graphics.MeasureString("性别",mPrintFont).Width,mPrintFont.GetHeight(e.Graphics)),sfLeft);
xPos+=e.Graphics.MeasureString("性别",mPrintFont).Width;
e.Graphics.DrawString(ds1.Tables["teacher1"].Rows[mPrintRecordCount]["年龄"].ToString(),mPrintFont,Brushes.Black,new RectangleF(xPos+90,yPos,e.Graphics.MeasureString("年龄",mPrintFont).Width,mPrintFont.GetHeight(e.Graphics)),sfLeft);
count++;
mPrintRecordCount++;
if(mPrintRecordCount<ds1.Tables["teacher1"].Rows.Count)
e.HasMorePages=true;
else
e.HasMorePages=false;   
}
}
catch
{
MessageBox.Show("没有输入查询条件，请从新输入！");
}
}