转载:http://www.cnblogs.com/JustYong/p/3861141.html
新项目中牵涉到对打印机的一些操作，最重要的莫过于获取打印机的状态，IP等信息，代码量不大，但是也是自己花了一点时间总结出来的，希望能帮助需要的朋友。
PrinterCommunicate用于连接打印机并发送指令
1 public class PrinterCommunicate
2 { 3 4 public bool CheckNetWorkConnection(string strPrinterIP, int intPrinterPort) 5 { 6 System.Net.Sockets.TcpClient Zebraclient = new TcpClient(); 7 try 8 { 9 Zebraclient.Connect(strPrinterIP, intPrinterPort); 10 return Zebraclient.Connected; 11 } 12 catch 13 { 14 return false; 15 } 16 } 17 18 public bool SendZPL_ViaNetwork(string strPrinterIP, int intPrinterPort, string strPrinterCommand, out string strOutMsg) 19 { 20 strOutMsg = ""; 21 22 System.Net.Sockets.TcpClient Zebraclient = new TcpClient(); 23 try 24 { 25 Zebraclient.SendTimeout = 1500; 26 Zebraclient.ReceiveTimeout = 1500; 27 //defining ip address and port number 28 Zebraclient.Connect(strPrinterIP, intPrinterPort); 29 30 if (Zebraclient.Connected == true) 31 { 32 //send and receive illustrated below 33 NetworkStream mynetworkstream; 34 StreamReader mystreamreader; 35 StreamWriter mystreamwriter; 36 mynetworkstream = Zebraclient.GetStream(); 37 mystreamreader = new StreamReader(mynetworkstream); 38 mystreamwriter = new StreamWriter(mynetworkstream); 39 40 mystreamwriter.WriteLine(strPrinterCommand); 41 mystreamwriter.Flush(); 42 char[] mk = null; 43 mk = new char[256]; 44 mystreamreader.Read(mk, 0, mk.Length); 45 string data1 = new string(mk); 46 strOutMsg = data1; 47 Zebraclient.Close(); 48 49 return true; 50 } 51 else 52 { 53 strOutMsg = "Connection failed"; 54 return false; 55 } 56 } 57 catch (Exception ex) 58 { 59 Log.WriteLogToFile("IPP_PCL", "PrinterCommunicate.cs -- SendZPL_ViaNetwork", "-99", ex.Message); 60 strOutMsg = "EXCEPTION_ERROR"; 61 } 62 63 return false; 64 } 65 66 }
WindowsPrintQueue用于获取打印机的型号，以及得到打印机的WindowsPrintQueue
1 public class WindowsPrintQueue
2 { 3 /// <summary> 4 /// whether the two printer is same model. 5 /// </summary> 6 /// <param name="printerName1"></param> 7 /// <param name="printerName2"></param> 8 /// <returns></returns> 9 public bool IsSameModel(string printerName1, string printerName2) 10 { 11 return GetPrinterModel(printerName1).Equals(GetPrinterModel(printerName2)); 12 } 13 14 /// <summary> 15 /// whether the printer is zebra model. 16 /// </summary> 17 /// <param name="printerName1"></param> 18 /// <param name="printerName2"></param> 19 /// <returns></returns> 20 public bool IsZebraPrinter(string printerName) 21 { 22 string zebraModel = "ZEBRA"; 23 return GetPrinterModel(printerName).Contains(zebraModel); 24 } 25 26 /// <summary> 27 /// Return printer model 28 /// </summary> 29 /// <param name="printerName"></param> 30 /// <returns></returns> 31 public string GetPrinterModel(string printerName) 32 { 33 string model = string.Empty; 34 System.Printing.PrintQueue printQueue = GetPrintQueue(printerName); 35 if (printQueue != null) 36 { 37 //Get printer model 38 if (printQueue.Description.IndexOf(",") == printQueue.Description.LastIndexOf(",")) 39 { 40 model = printQueue.Description.Substring(printQueue.Description.IndexOf(",") + 1, printQueue.Description.LastIndexOf(",") - printQueue.Description.IndexOf(",") - 1); 41 } 42 else 43 { 44 model = printQueue.Description.Substring(printQueue.Description.IndexOf(",") + 1); 45 } 46 } 47 return model; 48 } 49 50 /// <summary> 51 /// Get Windows Print Queue via printer name 52 /// </summary> 53 /// <param name="printerName"></param> 54 /// <returns></returns> 55 public System.Printing.PrintQueue GetPrintQueue(string printerName) 56 { 57 System.Printing.PrintQueue printQueue = null; 58 PrintServer server = new PrintServer(printerName); 59 foreach (System.Printing.PrintQueue pq in server.GetPrintQueues()) 60 { 61 if (pq.FullName.Equals(printerName)) 62 { 63 printQueue = pq; 64 } 65 } 66 return printQueue; 67 } 68 69 /// <summary> 70 /// Get Windows Print Queue via printer name 71 /// 如果两个printer指向的是同一个物理打印机,则如果copy1的printQueue已经打开, ///则发送到copy2的打印job也会添加到已经打开的copy1的printQueue中. 72 /// </summary> 73 /// <param name="printerName"></param> 74 /// <returns></returns> 75 public System.Printing.PrintQueue GetOpenedPrintQueueOfSameModel(string printerName) 76 { 77 System.Printing.PrintQueue doorOpenedprintQueue = null; 78 System.Printing.PrintQueue currentPrinterPrintQueue = null; 79 PrintServer server = new PrintServer(printerName); 80 foreach (System.Printing.PrintQueue pq in server.GetPrintQueues()) 81