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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)

'Declaration
Public Shared Function GetDevices As ServiceController()
'Usage
Dim returnValue As ServiceController()

returnValue = ServiceController.GetDevices
public static ServiceController[] GetDevices ()
public static function GetDevices () : ServiceController[]
Not applicable.

Return Value

An array of type ServiceController in which each element is associated with a device driver service on the local computer.

Exception typeCondition

Win32Exception

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()
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)


ServiceController scDevices[];
scDevices = ServiceController.GetDevices();

int numAdapter = 0;
int numFileSystem = 0;
int numKernel = 0;
int numRecognizer = 0;
// Display the list of device driver services.
Console.WriteLine("Device driver services on the local computer:");
ServiceController scTemp = null;
for (int iCtr = 0; iCtr < scDevices.get_Length(); iCtr++) {
    // Display the status and the service name, for example,
    // [Running] PCI Bus Driver
    // Type = KernelDriver
    scTemp = scDevices[iCtr];

    Console.WriteLine(" [{0}] {1}", scTemp.get_Status(), 
        scTemp.get_DisplayName());
    Console.WriteLine("           Type = {0}", 
        scTemp.get_ServiceType());
    // Update counters using the service type bit flags.
    if (System.Convert.ToInt32(scTemp.get_ServiceType() &
        ServiceType.Adapter) != 0) {
        numAdapter++;
    }
    if ((System.Convert.ToInt32(scTemp.get_ServiceType() & 
        ServiceType.FileSystemDriver)) != 0) {
        numFileSystem++;
    }
    if (System.Convert.ToInt32((scTemp.get_ServiceType() & 
        ServiceType.KernelDriver)) != 0) {
        numKernel++;
    }
    if (System.Convert.ToInt32((scTemp.get_ServiceType() & 
        ServiceType.RecognizerDriver)) != 0) {
        numRecognizer++;
    }
}

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

Windows 98, Windows Server 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

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