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ServiceController.GetDevices Method

Retrieves the device driver services on the local computer.

Namespace:  System.ServiceProcess
Assembly:  System.ServiceProcess (in System.ServiceProcess.dll)

Public Shared Function GetDevices As ServiceController()
Dim returnValue As ServiceController()

returnValue = ServiceController.GetDevices()

Return Value

Type: System.ServiceProcess.ServiceController()
An array of type ServiceController in which each element is associated with a device driver service on the local computer.


An error occurred when accessing a system API.

GetDevices returns only the device driver services from the local computer. To retrieve the non-device driver services or services that are not drivers, call the GetServices method. Together, the two methods provide access to all the services on a computer.

The following example uses the ServiceController class to display the device driver services on the local computer.

Dim scDevices() As ServiceController
scDevices = ServiceController.GetDevices()

Dim numAdapter As Integer 
Dim numFileSystem As Integer 
Dim numKernel As Integer 
Dim numRecognizer As Integer 

' Display the list of device driver services.
Console.WriteLine("Device driver services on the local computer:")

Dim scTemp As ServiceController
For Each scTemp In  scDevices
   ' Display the status and the service name, for example, 
   '   [Running] PCI Bus Driver 
   '             Type = KernelDriver

   Console.WriteLine(" [{0}] {1}", scTemp.Status, scTemp.DisplayName)
   Console.WriteLine("           Type = {0}", scTemp.ServiceType)

   ' Update counters using the service type bit flags. 
   If (scTemp.ServiceType And ServiceType.Adapter) <> 0 Then
      numAdapter = numAdapter + 1
   End If 
   If (scTemp.ServiceType And ServiceType.FileSystemDriver) <> 0 Then
      numFileSystem = numFileSystem + 1
   End If 
   If (scTemp.ServiceType And ServiceType.KernelDriver) <> 0 Then
      numKernel = numKernel + 1
   End If 
   If (scTemp.ServiceType And ServiceType.RecognizerDriver) <> 0 Then
      numRecognizer = numRecognizer + 1
   End If 

Next scTemp

Console.WriteLine("Total of {0} device driver services", scDevices.Length)
Console.WriteLine("  {0} are adapter drivers", numAdapter)
Console.WriteLine("  {0} are file system drivers", numFileSystem)
Console.WriteLine("  {0} are kernel drivers", numKernel)
Console.WriteLine("  {0} are file system recognizer drivers", numRecognizer)

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0