C# using WMI to query Win32_Fan class and fan speed return null? -



C# using WMI to query Win32_Fan class and fan speed return null? -

here code used query fan speed, fan speed homecoming null. know why?

public static void win32_fan() { selectquery query = new selectquery("win32_fan");

// initialize object searcher query managementobjectsearcher searcher = new managementobjectsearcher(query); // resulting collection , loop through foreach (managementobject fan in searcher.get()) { console.writeline("{0} = activecooling {1}",fan["name"], fan["activecooling"]); console.writeline("desiredspeed = {0}", fan["desiredspeed"]); } }

what hans alluding fact wmi dependent on device driver supplies it. wmi defines big assortment of classes kinds of useful properties, of (related hardware, anyway) need filled in driver. if driver doesn't give wmi information, wmi can't give info you.

c# wmi

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