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ServiceType Enumeration

Represents the type of the service.

This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values.

[Visual Basic]
<Flags>
<Serializable>
Public Enum ServiceType
[C#]
[Flags]
[Serializable]
public enum ServiceType
[C++]
[Flags]
[Serializable]
__value public enum ServiceType
[JScript]
public
   Flags
 Serializable
enum ServiceType

Remarks

The service type indicates how the service is used by the system. The ServiceController that passes commands to the service stores a value for the service type.

The value of a ServiceType instance represents a set of flags combined using the bitwise OR operator.

The creation of interactive services is not supported. To workaround this, you can create a non-interactive service and a separate control GUI application that communicates with the service using sockets or remoting. For code samples on remoting, see Remoting Examples.

Members

Member name Description Value
Adapter A service for a hardware device that requires its own driver. 4
FileSystemDriver A file system driver, which is also a Kernel device driver. 2
InteractiveProcess A service that can communicate with the desktop. 256
KernelDriver A Kernel device driver such as a hard disk or other low-level hardware device driver. 1
RecognizerDriver A file system driver used during startup to determine the file systems present on the system. 8
Win32OwnProcess A Win32 program that can be started by the Service Controller and that obeys the service control protocol. This type of Win32 service runs in a process by itself. 16
Win32ShareProcess A Win32 service that can share a process with other Win32 services. 32

Example

[Visual Basic, C#, C++] The following example uses the ServiceController class to display the device driver services on the local computer.

[Visual Basic] 

         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)


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

int numAdapter = 0,
    numFileSystem = 0, 
    numKernel = 0, 
    numRecognizer = 0;
       
// Display the list of device driver services.
Console.WriteLine("Device driver services on the local computer:");

foreach (ServiceController 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 & ServiceType.Adapter) != 0)
   {
      numAdapter++;
   } 
   if ((scTemp.ServiceType & ServiceType.FileSystemDriver) != 0)
   {
      numFileSystem++;
   }  
   if ((scTemp.ServiceType & ServiceType.KernelDriver) != 0)
   {
      numKernel++;
   } 
   if ((scTemp.ServiceType & ServiceType.RecognizerDriver) != 0)
   {
      numRecognizer++;
   }

}

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);


[C++] 
ServiceController * scDevices[] = ServiceController::GetDevices();

if (scDevices->Length)
{

   int numAdapter = 0,
       numFileSystem = 0, 
       numKernel = 0, 
       numRecognizer = 0;
       
   // Display the list of device driver services.
   Console::WriteLine("Device driver services on the local computer:");

   for (int i=0; i < scDevices->Length; i++)
   {
      ServiceController *scTemp = scDevices[i];
      // Display the status and the service name, for example,
      //   [Running] PCI Bus Driver
      //             Type = KernelDriver

      if (scTemp)
      {
         Console::WriteLine(" [{0}] {1}", 
                           __box(scTemp->Status), scTemp->DisplayName);
         Console::WriteLine("           Type = {0}", __box(scTemp->ServiceType)); 
      
         // Update counters using the service type bit flags.
         if ((scTemp->ServiceType & ServiceType::Adapter) != 0)
         {
            numAdapter++;
         }  
         if ((scTemp->ServiceType & ServiceType::FileSystemDriver) != 0)
         {
            numFileSystem++;
         }  
         if ((scTemp->ServiceType & ServiceType::KernelDriver) != 0)
         {
            numKernel++;
         } 
         if ((scTemp->ServiceType & ServiceType::RecognizerDriver) != 0)
         {
            numRecognizer++;
         }
      }
   
   }

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

[JScript] No example is available for JScript. To view a Visual Basic, C#, or C++ example, click the Language Filter button Language Filter in the upper-left corner of the page.

Requirements

Namespace: System.ServiceProcess

Platforms: Windows NT Server 4.0, Windows NT Workstation 4.0, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

Assembly: System.Serviceprocess (in System.Serviceprocess.dll)

See Also

System.ServiceProcess Namespace | ServiceController.ServiceType | ServiceController

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