如何获取打印机状态（缺纸，缺墨。。。）
我使用的是网络打印机，如何在C#下获取打印机状态（缺纸，缺墨。。。），谢谢。

------解决方案--------------------
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(p