Get if Device is enabled or Disabled in C#

[XxKeldecknightxX]

Hi everyone! Does anyone have a sniblet to be able to detect if the device is enabled or disabled in device manager. I've done a bit a searching and couldn't find anything of use when attempting to get a status of a device. What I have so far, it appears the value I am obtaining by marshaling my Data stays the same regardless of its status so my API call is incorrect or the way I am marshaling out and I was hoping one of you may have a sniblet that actually works. Below are two failed attempts at getting the device status :\ Thank you!!

public static bool GetDeviceState(Func filter) //https://www.codeproject.com/script/Content/ViewAssociatedFile.aspx?rzp=%2FKB%2Fsystem%2FDevMgr%2Fdevmgr-src.zip&zep=GetTypeInfo.c&obid=14469&obtid=2&ovid=1
{

        var dpk = new DEVPROPKEY();
        dpk.fmtid = new Guid("60b193cb-5276-4d0f-96fc-f173abad3ec6");
        dpk.pid = 2;

        var displayDevClass = new Guid("{ca3e7ab9-b4c3-4ae6-8251-579ef933890f}".ToString());
        var hDevInfo = SetupDiGetClassDevs(ref displayDevClass, null, IntPtr.Zero, DiGetClassFlags.DIGCF\_PRESENT | DiGetClassFlags.DIGCF\_DEVICEINTERFACE);

        if (hDevInfo != INVALID\_HANDLE\_VALUE)
        {
            uint i = 0;
            while (true)
            {
                var did = new SP\_DEVINFO\_DATA();
                did.cbSize = (uint)Marshal.SizeOf(did);
                if (!SetupDiEnumDeviceInfo(hDevInfo, i, out did)) break;

                uint required = 0;
                DEVPROPTYPE dpt = 0;
                var temp = new byte\[0\];
                SetupDiGetDeviceProperty(hDevInfo, ref did, ref dpk, ref dpt, temp, 0, ref required);
                if (required > 0)
                {
                    var data = new byte\[required\];
                    if (SetupDiGetDeviceProperty(hDevInfo, ref did, ref dpk, ref dpt, data, required, ref required))
                    {
                        Debug.WriteLine(BitConverter.ToString(data));
                    }
                }
            }
        }









        IntPtr info = IntPtr.Zero;
        Guid NullGuid = Guid.Empty;
        try
        {
            info = SetupDiGetClassDevsW(ref NullGuid, null, IntPtr.Zero, DIGCF\_ALLCLASSES);
            CheckError("SetupDiGetClassDevs");

            SP\_DEVINFO\_DATA devdata = new SP\_DEVINFO\_

[Luc Pattyn]

Hi, I'm not familiar with most of the functions you're using, but maybe this helps: I once was interested in the enable/disable status of my Ethernet connection, as set in the Control Panel Network Connections (which might be different from the choice offered in Device Manager). I used WMI (class Win32_NetworkAdapter), and checked property NetConnectionStatus which was zero for disabled and non-zero (7 IIRC) for enabled. :)

Luc Pattyn [My Articles] If you can't find it on YouTube try TikTok...

[Lost User]

Luc is being modest. If he says he got a better idea, you better follow it. Not every device is complete in terms of device-drivers. I have a mountain of webcams that don't work under Linux to prove so.

Bastard Programmer from Hell :suss: If you can't read my code, try converting it here[^] "If you just follow the bacon Eddy, wherever it leads you, then you won't have to think about politics." -- Some Bell.

[Luc Pattyn]

Here is fresh code that works for me:

using System;
using System.Management;

namespace LP_Core {
public class LP_Ethernet {
public static string GetState() {
string query = "SELECT NetConnectionStatus FROM Win32_NetworkAdapter "+
"WHERE NetConnectionID='Ethernet'";
ManagementObjectSearcher ethernets = new ManagementObjectSearcher(query);
foreach (ManagementObject ethernet in ethernets.Get()) {
switch (Convert.ToInt32(ethernet["NetConnectionStatus"])) {
// constants: https://docs.microsoft.com/en-us/dotnet/
// api/microsoft.powershell.commands.netconnectionstatus
case 0:
return "disabled";
case 7:
return "enabled but disconnected";
case 2:
return "enabled and connected";
default:
return "unknown";
}
}
return "absent";
}
}
}

:)

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