首页 > 技术文章 > C# 获取打印机状态

weixing 2013-08-26 18:00 原文

public static string GetPrinterStatus(string PrinterName) 
 
  int intValue = GetPrinterStatusInt(PrinterName); 
  string strRet = string.Empty; 
  switch (intValue) 
 
  case 0: 
  strRet = "准备就绪(Ready)"
  break
  case 0x00000200: 
  strRet = "忙(Busy)"
  break
  case 0x00400000: 
  strRet = "被打开(Printer Door Open)"
  break
  case 0x00000002: 
  strRet = "错误(Printer Error)"
  break
  case 0x0008000: 
  strRet = "初始化(Initializing)"
  break
  case 0x00000100: 
  strRet = "正在输入,输出(I/O Active)"
  break
  case 0x00000020: 
  strRet = "手工送纸(Manual Feed)"
  break
  case 0x00040000: 
  strRet = "无墨粉(No Toner)"
  break
  case 0x00001000: 
  strRet = "不可用(Not Available)"
  break
  case 0x00000080: 
  strRet = "脱机(Off Line)"
  break
  case 0x00200000: 
  strRet = "内存溢出(Out of Memory)"
  break
  case 0x00000800: 
  strRet = "输出口已满(Output Bin Full)"
  break
  case 0x00080000: 
  strRet = "当前页无法打印(Page Punt)"
  break
  case 0x00000008: 
  strRet = "塞纸(Paper Jam)"
  break
  case 0x00000010: 
  strRet = "打印纸用完(Paper Out)"
  break
  case 0x00000040: 
  strRet = "纸张问题(Page Problem)"
  break
  case 0x00000001: 
  strRet = "暂停(Paused)"
  break
  case 0x00000004: 
  strRet = "正在删除(Pending Deletion)"
  break
  case 0x00000400: 
  strRet = "正在打印(Printing)"
  break
  case 0x00004000: 
  strRet = "正在处理(Processing)"
  break
  case 0x00020000: 
  strRet = "墨粉不足(Toner Low)"
  break
  case 0x00100000: 
  strRet = "需要用户干预(User Intervention)"
  break
  case 0x20000000: 
  strRet = "等待(Waiting)"
  break
  case 0x00010000: 
  strRet = "热机中(Warming Up)"
  break
  default
  strRet = "未知状态(Unknown Status)"
  break
 
  return strRet;
   }
 
   internal static int GetPrinterStatusInt(string PrinterName) 
 
  int intRet = 0; 
  IntPtr hPrinter; 
  structPrinterDefaults defaults = new structPrinterDefaults(); 
 
   if (OpenPrinter(PrinterName, out hPrinter, ref defaults)) 
 
  int cbNeeded = 0; 
  bool bolRet = GetPrinter(hPrinter, 2, IntPtr.Zero, 0, out cbNeeded); 
  if (cbNeeded > 0) 
 
  IntPtr pAddr = Marshal.AllocHGlobal((int)cbNeeded); 
  bolRet = GetPrinter(hPrinter, 2, pAddr, cbNeeded, out cbNeeded); 
  if (bolRet) 
 
  PRINTER_INFO_2 Info2 = new PRINTER_INFO_2(); 
   
  Info2 = (PRINTER_INFO_2)Marshal.PtrToStructure(pAddr, typeof(PRINTER_INFO_2)); 
   
  intRet = System.Convert.ToInt32(Info2.Status); 
 
  Marshal.FreeHGlobal(pAddr); 
 
  ClosePrinter(hPrinter); 
 
 
   return intRet; 
 
 
  [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)] 
  internal struct structPrinterDefaults 
 
  [MarshalAs(UnmanagedType.LPTStr)] 
  public String pDatatype; 
  public IntPtr pDevMode; 
  [MarshalAs(UnmanagedType.I4)] 
  public int DesiredAccess; 
  }; 
 
状态枚举
[FlagsAttribute] 
  internal enum PrinterStatus 
 
  PRINTER_STATUS_BUSY = 0x00000200, 
  PRINTER_STATUS_DOOR_OPEN = 0x00400000, 
  PRINTER_STATUS_ERROR = 0x00000002, 
  PRINTER_STATUS_INITIALIZING = 0x00008000, 
  PRINTER_STATUS_IO_ACTIVE = 0x00000100, 
  PRINTER_STATUS_MANUAL_FEED = 0x00000020, 
  PRINTER_STATUS_NO_TONER = 0x00040000, 
  PRINTER_STATUS_NOT_AVAILABLE = 0x00001000, 
  PRINTER_STATUS_OFFLINE = 0x00000080, 
  PRINTER_STATUS_OUT_OF_MEMORY = 0x00200000, 
  PRINTER_STATUS_OUTPUT_BIN_FULL = 0x00000800, 
  PRINTER_STATUS_PAGE_PUNT = 0x00080000, 
  PRINTER_STATUS_PAPER_JAM = 0x00000008, 
  PRINTER_STATUS_PAPER_OUT = 0x00000010, 
  PRINTER_STATUS_PAPER_PROBLEM = 0x00000040, 
  PRINTER_STATUS_PAUSED = 0x00000001, 
  PRINTER_STATUS_PENDING_DELETION = 0x00000004, 
  PRINTER_STATUS_PRINTING = 0x00000400, 
  PRINTER_STATUS_PROCESSING = 0x00004000, 
  PRINTER_STATUS_TONER_LOW = 0x00020000, 
  PRINTER_STATUS_USER_INTERVENTION = 0x00100000, 
  PRINTER_STATUS_WAITING = 0x20000000, 
  PRINTER_STATUS_WARMING_UP = 0x00010000 
 

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