C# 获取打印机状态

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 

  }