using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Linq;
using?System.Text;
using?System.Windows.Forms;
using?System.Net.Sockets;
using?System.Net.NetworkInformation;
using?System.IO.Ports;
using?System.Drawing.Printing;

namespace?testprint
{
????public?partial?class?Form1?:?Form
????{
????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????}

????????private?void?button1_Click（object?sender?EventArgs?e）
????????{
????????????Int32?port?=?9100;
????????????string?bigFont?=?（（char）27）.ToString（）?+?（（char）33）.ToString（）?+?（（char）213）.ToString（）;//放大字體???????
????????????TcpClient?client?=?new?TcpClient（）;
????????????try
????????????{
????????????????client.Connect（“192.168.0.200“?port）;

????????????????Byte[]?data?=?new?byte[]{0x1B0x76};
????????????????NetworkStream?stream?=?client.GetStream（）;
????????????????stream.Write（data?0?data.Length）;
???????????????
????????????????//data?=?System.Text.Encoding.Default.GetBytes（bigFont）;
????????????????//stream.Write（data?0?data.Length）;
????????????????//data?=?System.Text.Encoding.Default.GetBytes（“打印機(jī)測(cè)試/n“）;
????????????????//stream.Write（data?0?data.Length）;
????????????????//data?=?System.Text.Encoding.Default.GetBytes（“-?????????????-/n“）;
????????????????//stream.Write（data?0?data.Length）;
????????????????//data?=?System.Text.Encoding.Default.GetBytes（“-?????????????-/n“）;
????????????????//stream.Write（data?0?data.Length）;
????????????????stream.Close（）;

????????????}
????????????catch?（Exception?ex）
????????????{
????????????????MessageBox.Show（ex.Message）;
????????????????//如果打印機(jī)沒開或者異常在此處增加處理代碼我通常是把異常數(shù)據(jù)放到一個(gè)DataTable中加個(gè)Timer來(lái)判斷打印機(jī)正常就把

????????????????//數(shù)據(jù)發(fā)給打印機(jī)并從表中移除.

????????????????//打印機(jī)缺紙或者紙匣打開時(shí)不會(huì)出現(xiàn)異常不用特殊代碼判斷數(shù)據(jù)不會(huì)丟失.
????????????}
????????????finally
????????????{
????????????????client.Close（）;
????????????}


????????}

????????private?void?button2_Click（object?sender?EventArgs?e）
????????{
????????????Ping?p1?=?new?Ping（）;?//只是演示，沒有做錯(cuò)誤處理??????
????????????PingReply?reply?=?p1.Send（this.textBox1.Text）;//
????????????displayReply（reply）;
????????}
????private?void?displayReply（PingReply?reply）?//顯示結(jié)果??
?{?????
????????StringBuilder?sbuilder?;???
????????if?（reply.Status?==?IPStatus.Success）??
????????{?????????
????????????sbuilder?=?new?StringBuilder（）;??
????????????sbuilder.Append（string.Format（“Address:?{0}?“?reply.Address.ToString?（）））;????
????????????sbuilder.Append（string.Format（“RoundTrip?time:?{0}?“?reply.RoundtripTime））;???
????????????sbuilder.Append（string.Format（“Time?to?live:?{0}?“?reply.Options.Ttl））;??????
????????????sbuilder.Append（string.Format（“Don‘t?fragment:?{0}?“?reply.Options.DontFragment））;??
????????????sbuilder.Append（string.Format（“Buffer?size:?{0}?“?reply.Buffer.Length））;??????
????????????listBox1.Items.Add（sbuilder.ToString（））;???
????????}??
????}

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件??????81920??2007-03-15?11:09??testprint\bin\Debug\POSDLL.dll

?????文件??????12800??2013-02-24?23:39??testprint\bin\Debug\testprint.exe

?????文件??????26112??2013-02-24?23:39??testprint\bin\Debug\testprint.pdb

?????文件??????11600??2013-02-24?23:39??testprint\bin\Debug\testprint.vshost.exe

?????文件???????6589??2013-02-24?23:39??testprint\Form1.cs

?????文件???????4996??2013-02-24?23:39??testprint\Form1.Designer.cs

?????文件???????5817??2013-02-24?23:39??testprint\Form1.resx

?????文件???????4501??2013-02-24?18:47??testprint\obj\x86\Debug\DesignTimeResolveAssemblyReferences.cache

?????文件???????6399??2013-02-24?23:39??testprint\obj\x86\Debug\DesignTimeResolveAssemblyReferencesInput.cache

?????文件????????380??2013-02-24?23:39??testprint\obj\x86\Debug\GenerateResource.read.1.tlog

?????文件????????866??2013-02-24?23:39??testprint\obj\x86\Debug\GenerateResource.write.1.tlog

?????文件???????1006??2013-02-24?23:39??testprint\obj\x86\Debug\testprint.csproj.FileListAbsolute.txt

?????文件??????12800??2013-02-24?23:39??testprint\obj\x86\Debug\testprint.exe

?????文件????????180??2013-02-24?23:39??testprint\obj\x86\Debug\testprint.Form1.resources

?????文件??????26112??2013-02-24?23:39??testprint\obj\x86\Debug\testprint.pdb

?????文件????????180??2013-02-24?23:39??testprint\obj\x86\Debug\testprint.Properties.Resources.resources

?????文件????????490??2013-02-24?01:04??testprint\Program.cs

?????文件???????1350??2013-02-24?01:04??testprint\Properties\AssemblyInfo.cs

?????文件???????2868??2013-02-24?01:04??testprint\Properties\Resources.Designer.cs

?????文件???????5612??2013-02-24?01:04??testprint\Properties\Resources.resx

?????文件???????1094??2013-02-24?01:04??testprint\Properties\Settings.Designer.cs

?????文件????????249??2013-02-24?01:04??testprint\Properties\Settings.settings

?????文件???????5671??2013-02-24?20:36??testprint\RawPrinterHelper.cs

?????文件???????3724??2013-02-24?23:39??testprint\testprint.csproj

?????文件????????869??2013-02-24?01:04??testprint.sln

?????目錄??????????0??2013-02-24?01:04??testprint\obj\x86\Debug\TempPE

?????目錄??????????0??2013-02-24?23:39??testprint\obj\x86\Debug

?????目錄??????????0??2013-02-24?23:39??testprint\bin\Debug

?????目錄??????????0??2013-02-24?01:04??testprint\obj\x86

?????目錄??????????0??2013-02-24?23:38??testprint\bin

............此處省略6個(gè)文件信息