向 Windows 服务添加描述

Question

我通过以下代码安装了一个windows服务。

 #region Private Variables

    #endregion Private Variables
    #region DLLImport
    [DllImport("advapi32.dll")]
    public static extern IntPtr OpenSCManager(string lpMachineName, string lpSCDB, int scParameter);
    [DllImport("Advapi32.dll")]
    public static extern IntPtr CreateService(IntPtr SC_HANDLE, string lpSvcName, string lpDisplayName,
    int dwDesiredAccess, int dwServiceType, int dwStartType, int dwErrorControl, string lpPathName,
    string lpLoadOrderGroup, int lpdwTagId, string lpDependencies, string lpServiceStartName, string lpPassword);
    [DllImport("advapi32.dll")]
    public static extern void CloseServiceHandle(IntPtr SCHANDLE);
    [DllImport("advapi32.dll")]
    public static extern int StartService(IntPtr SVHANDLE, int dwNumServiceArgs, string lpServiceArgVectors);
    [DllImport("advapi32.dll", SetLastError = true)]
    public static extern IntPtr OpenService(IntPtr SCHANDLE, string lpSvcName, int dwNumServiceArgs);
    [DllImport("advapi32.dll")]
    public static extern int DeleteService(IntPtr SVHANDLE);
    [DllImport("kernel32.dll")]
    public static extern int GetLastError();
    #endregion DLLImport
    public static bool  InstallService(string svcPath, string svcName, string svcDispName)
    {
        #region Constants declaration.
        int SC_MANAGER_CREATE_SERVICE = 0x0002;
        int SERVICE_WIN32_OWN_PROCESS = 0x00000010;
        //int SERVICE_DEMAND_START = 0x00000003;
        int SERVICE_ERROR_NORMAL = 0x00000001;
        int STANDARD_RIGHTS_REQUIRED = 0xF0000;
        int SERVICE_QUERY_CONFIG = 0x0001;
        int SERVICE_CHANGE_CONFIG = 0x0002;
        int SERVICE_QUERY_STATUS = 0x0004;
        int SERVICE_ENUMERATE_DEPENDENTS = 0x0008;
        int SERVICE_START = 0x0010;
        int SERVICE_STOP = 0x0020;
        int SERVICE_PAUSE_CONTINUE = 0x0040;
        int SERVICE_INTERROGATE = 0x0080;
        int SERVICE_USER_DEFINED_CONTROL = 0x0100;
        int SERVICE_ALL_ACCESS = (STANDARD_RIGHTS_REQUIRED |
        SERVICE_QUERY_CONFIG |
        SERVICE_CHANGE_CONFIG |
        SERVICE_QUERY_STATUS |
        SERVICE_ENUMERATE_DEPENDENTS |
        SERVICE_START |
        SERVICE_STOP |
        SERVICE_PAUSE_CONTINUE |
        SERVICE_INTERROGATE |
        SERVICE_USER_DEFINED_CONTROL);
        int SERVICE_AUTO_START = 0x00000002;
        #endregion Constants declaration.
        try
        {
            IntPtr sc_handle = OpenSCManager(null, null, SC_MANAGER_CREATE_SERVICE);
            if (sc_handle.ToInt32() != 0)
            {
                IntPtr sv_handle = CreateService(sc_handle, svcName, svcDispName, SERVICE_ALL_ACCESS, SERVICE_WIN32_OWN_PROCESS, SERVICE_AUTO_START, SERVICE_ERROR_NORMAL, svcPath, null, 0, null, null, null);
                if (sv_handle.ToInt32() == 0)
                {
                    CloseServiceHandle(sc_handle);
                    return false;
                }
                else
                {
                    //now trying to start the service
                    int i = StartService(sv_handle, 0, null);
                    // If the value i is zero, then there was an error starting the service.
                    // note: error may arise if the service is already running or some other problem.
                    if (i == 0)
                    {
                        Console.WriteLine("Couldnt start service");
                        return false;
                    }
                    Console.WriteLine("Service started successfully");
                    CloseServiceHandle(sc_handle);
                    return true;
                }
            }
            else
            {
                Console.WriteLine("SCM not opened successfully");
                return false;
            }
        }
        catch (Exception e)
        {
            throw e;
        }
    }

但是 SCM 中的描述是空白的，请不要使用 ServiceInsatller，因为我想修改生产中的现有代码。感谢代码贡献。

更新：

如果忘记上面的代码，使用ManagedInstallerClass或其他方法，怎么办？

Answer 1

回答的代码不起作用。这是一个对我有用的版本：

const int SERVICE_CONFIG_DESCRIPTION = 0x01;

[DllImport("advapi32.dll", SetLastError=true, CharSet=CharSet.Auto)]
[return: MarshalAs(UnmanagedType.Bool)]
public static extern bool ChangeServiceConfig2(IntPtr hService, int dwInfoLevel, [MarshalAs(UnmanagedType.Struct)] ref SERVICE_DESCRIPTION lpInfo);

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct SERVICE_DESCRIPTION
{
    public string lpDescription;
}

var pinfo = new SERVICE_DESCRIPTION
{
    lpDescription = "My Service Description"
};

ChangeServiceConfig2(service, SERVICE_CONFIG_DESCRIPTION, ref pinfo);

Answer 2

原答案位于here，为方便起见，在此重复。

调用 ChangeServiceConfig2 传递 SERVICE_CONFIG_DESCRIPTION 作为 dwInfoLevel 参数。您还需要服务的句柄，但是 CreateService 为您提供其中之一。

就DllImport 而言，您可以找到ChangeServiceConfig2 here 的规范。

编辑：

如果您想完全放弃现有的方法，使用ManagedInstallerClass 不是正确的方法，因为 MSDN 明确规定不要在您的代码中使用它。据我估计，正确的方法是使用 ServiceInstaller 组件，但您最初的问题说您不想使用这种方法。

假设您放弃了不使用ServiceInstaller。然后我建议按照我在回答 here 中提供的说明进行操作，特别注意步骤 6-9。在第 8 步中，您可以将任何您喜欢的描述添加到属性网格中的 ServiceInstaller 组件中。

如果您仍然不想采用这种方法，那么我最初的答案是有效的。它看起来像这样（请注意，我还没有测试过）：

[DllImport("advapi32.dll", SetLastError=true, CharSet=CharSet.Auto)]
[return: MarshalAs(UnmanagedType.Bool)]
public static extern bool ChangeServiceConfig2(
    IntPtr hService, 
    int dwInfoLevel,
    IntPtr lpInfo);

int SERVICE_CONFIG_DESCRIPTION = 0x01;
ChangeServiceConfig2(sv_handle, SERVICE_CONFIG_DESCRIPTION, "a test description");