c#如何获取打印机任务列表

[铛铛]

c#如何获取打印机任务列表!!!
不胜感激!!!!

[CodeProject-Jerry]

P/Invoke

首先调用 OpenPrinter 获得打印机句柄

BOOL OpenPrinter(
  LPTSTR pPrinterName,         // printer or server name
  LPHANDLE phPrinter,          // printer or server handle
  LPPRINTER_DEFAULTS pDefault  // printer defaults
);

然后调用 EnumJobs 枚举 每个工作任务

BOOL EnumJobs(
  HANDLE hPrinter,    // handle to printer object
  DWORD FirstJob,     // index of first job
  DWORD NoJobs,       // number of jobs to enumerate
  DWORD Level,        // information level
  LPBYTE pJob,        // job information buffer
  DWORD cbBuf,        // size of job information buffer
  LPDWORD pcbNeeded,  // bytes received or required
  LPDWORD pcReturned  // number of jobs received
);

最后不要忘记了 关闭句柄，释放资源\

BOOL ClosePrinter(
  HANDLE hPrinter   // handle to printer object
);

相关p/invoke可以到此站点查询 http://www.pinvoke.net/

[deyter]

网上找的
如：设置默认打印机
using System.Management;

private ManagementObjectSearcher query;
private ManagementObjectCollection queryCollection;
string _classname="SELECT * FROM Win32_Printer";

query=new ManagementObjectSearcher(_classname);
queryCollection = query.Get();

foreach (ManagementObject mo in queryCollection)
{
if (string.Compare(mo["Name"].ToString(),PrinterName,true)==0)
{
mo.InvokeMethod("SetDefaultPrinter",null); //调用了其方法，可修改此处获取相关状态属性
break;
}
}
相同的方法，你在得到具体的打印机实例时，可以获取到其相关属性，再显示出来即可。

[Passage2011]

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