111,095
社区成员




ManagementObjectSearcher MgmtSearcher;
//Perform the search for printers and return the listing as a collection
MgmtSearcher = new ManagementObjectSearcher("Select * from Win32_Printer");
MgmtCollection = MgmtSearcher.Get();
foreach (ManagementObject objWMI in MgmtCollection)
{
string name = objWMI["Name"].ToString().ToLower();
if (name.Equals(printerName.ToLower()))
{
int state = Int32.Parse(objWMI["ExtendedPrinterStatus"].ToString());
if ((state == 1) || //Other
(state == 2) || //Unknown
(state == 7) || //Offline
(state == 9) || //error
(state == 11) //Not Available
)
{
throw new ApplicationException("hope you are finally offline");
}
state = Int32.Parse(objWMI["DetectedErrorState"].ToString());
if (state != 2) //No error
{
throw new ApplicationException("hope you are finally offline");
}
}
}