WMI (Windows Management Instrumentation)

Defined

WMI (Windows Management instrumentation,windows Management specification) is a core Windows management technology that allows users to manage both local and remote computers using WMI.

Common WMI View

WMI Reference

WMI Classes

Computer System Hardware Classes

Win32_Printer

　　　　　　Win32_PrintJob

Win32 Classes

WMI Providers

C # example

using System.Management;

Stringquery =string. Format ("SELECT * from win32_printer WHERE Name = ' {0} '", PrinterName); ManagementObjectSearcher Searcher=Newmanagementobjectsearcher (query); Managementobjectcollection Printerzs=Searcher. Get ();foreach(Managementbaseobject printerinchPrinterzs) {    stringPrinterName = printer. properties["Name"].    Value.tostring (); if(PrinterName = =printername) {        stringWorkOffline = printer. properties["WorkOffline"]. Value.tostring ().        ToLower (); Printerstruct.workoffline= Workoffline.tolower () = ="true"; stringJobcount = printer. properties["Jobcountsincelastreset"].        Value.tostring (); Printerstruct.jobcount=Convert.ToInt32 (Jobcount); Core.printerstatus ret= (Core.printerstatus) convert.toint32 (printer. properties["Printerstatus"].        Value); Printerstruct.printerstatus=ret; Printerstruct.printerstatusstring=ret.    ToString (); }}