Search
Module:
Directory

   Desktop Functions:

   Smart Device Functions:


Show Recent Changes
Subscribe (RSS)
Misc. Pages
Comments
FAQ
Helpful Tools
Playground
Suggested Reading
Website TODO List
Support Forum
Download Visual Studio Add-In

Terms of Use
Privacy Policy
queryservicestatusex (advapi32)
 
.
Summary
The QueryServiceStatusEx function retrieves the current status of the specified service based on the specified information level.

C# Signature:

    [DllImport("advapi32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
    static extern bool QueryServiceStatusEx(IntPtr serviceHandle, int infoLevel, IntPtr buffer, int bufferSize, out int bytesNeeded);

VB.net Signature:

<DllImport("advapi32.dll", CharSet := CharSet.Unicode, SetLastError := True)> _
Public Shared Function QueryServiceStatusEx(serviceHandle As IntPtr, infoLevel As Integer, buffer As IntPtr, bufferSize As Integer, ByRef bytesNeeded As Integer) As Boolean
End Function

User-Defined Types:

    [Flags]
    enum ServiceState : int
    {
        SERVICE_CONTINUE_PENDING= 0x00000005,
        SERVICE_PAUSE_PENDING   = 0x00000006,
        SERVICE_PAUSED      = 0x00000007,
        SERVICE_RUNNING     = 0x00000004,
        SERVICE_START_PENDING   = 0x00000002,
        SERVICE_STOP_PENDING    = 0x00000003,
        SERVICE_STOPPED     = 0x00000001
    }

Alternative Managed API:

Do you know one? Please contribute it!

Notes:

For infoLevel only SC_STATUS_PROCESS_INFO (0x0) is allowed .

See SERVICE_STATUS_PROCESS definition.

See OpenService to get the hService.

None.

Tips & Tricks:

Please add some!

Sample Code:

    public static SERVICE_STATUS_PROCESS QueryServiceStatusEx(IntPtr serviceHandle)
    {
        IntPtr buf = IntPtr.Zero;
        try
        {
        int size = 0;

        QueryServiceStatusEx(serviceHandle, 0, buf, size, out size);

        buf = Marshal.AllocHGlobal(size);

        if (!QueryServiceStatusEx(serviceHandle, 0, buf, size, out size))
        {
            throw new Win32Exception(Marshal.GetLastWin32Error());
        }

        return (SERVICE_STATUS_PROCESS)Marshal.PtrToStructure(buf, typeof(SERVICE_STATUS_PROCESS));
        }
        finally
        {
        if (!buf.Equals(IntPtr.Zero))
            Marshal.FreeHGlobal(buf);
        }
    }

Documentation

Please edit this page!

Do you have...

  • helpful tips or sample code to share for using this API in managed code?
  • corrections to the existing content?
  • variations of the signature you want to share?
  • additional languages you want to include?

Select "Edit This Page" on the right hand toolbar and edit it! Or add new pages containing supporting types needed for this API (structures, delegates, and more).

 
Access PInvoke.net directly from VS:
Terms of Use
Edit This Page
Find References
Show Printable Version
Revisions