Los parámetros se pueden establecer mediante P/Invocando la API ChangeServiceConfig. Aparecen después de la ruta entre comillas y el nombre del archivo en su ejecutable en el argumento lpBinaryPathName.
Los parámetros se pondrá a disposición a su servicio cuando se inicia a través del método principal:
static void Main(string[] args)
(principal, tradicional establecimiento de un archivo llamado Program.cs).
A continuación se muestra cómo se puede modificar un instalador para llamar a esta API después de que se ejecute la lógica de instalación del servicio normal. Las partes de esto que probablemente necesitará modificar están en el constructor.
using System;
using System.Collections;
using System.Collections.Generic;
using System.Configuration.Install;
using System.ComponentModel;
using System.Configuration.Install;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.ServiceProcess;
using System.Text;
namespace ServiceTest
{
[RunInstaller(true)]
public class ProjectInstaller : Installer
{
private string _Parameters;
private ServiceProcessInstaller _ServiceProcessInstaller;
private ServiceInstaller _ServiceInstaller;
public ProjectInstaller()
{
_ServiceProcessInstaller = new ServiceProcessInstaller();
_ServiceInstaller = new ServiceInstaller();
_ServiceProcessInstaller.Account = ServiceAccount.LocalService;
_ServiceProcessInstaller.Password = null;
_ServiceProcessInstaller.Username = null;
_ServiceInstaller.ServiceName = "Service1";
this.Installers.AddRange(new System.Configuration.Install.Installer[] {
_ServiceProcessInstaller,
_ServiceInstaller});
_Parameters = "/ThisIsATest";
}
public override void Install(IDictionary stateSaver)
{
base.Install(stateSaver);
IntPtr hScm = OpenSCManager(null, null, SC_MANAGER_ALL_ACCESS);
if (hScm == IntPtr.Zero)
throw new Win32Exception();
try
{
IntPtr hSvc = OpenService(hScm, this._ServiceInstaller.ServiceName, SERVICE_ALL_ACCESS);
if (hSvc == IntPtr.Zero)
throw new Win32Exception();
try
{
QUERY_SERVICE_CONFIG oldConfig;
uint bytesAllocated = 8192; // Per documentation, 8K is max size.
IntPtr ptr = Marshal.AllocHGlobal((int)bytesAllocated);
try
{
uint bytesNeeded;
if (!QueryServiceConfig(hSvc, ptr, bytesAllocated, out bytesNeeded))
{
throw new Win32Exception();
}
oldConfig = (QUERY_SERVICE_CONFIG) Marshal.PtrToStructure(ptr, typeof(QUERY_SERVICE_CONFIG));
}
finally
{
Marshal.FreeHGlobal(ptr);
}
string newBinaryPathAndParameters = oldConfig.lpBinaryPathName + " " + _Parameters;
if (!ChangeServiceConfig(hSvc, SERVICE_NO_CHANGE, SERVICE_NO_CHANGE, SERVICE_NO_CHANGE,
newBinaryPathAndParameters, null, IntPtr.Zero, null, null, null, null))
throw new Win32Exception();
}
finally
{
if (!CloseServiceHandle(hSvc))
throw new Win32Exception();
}
}
finally
{
if (!CloseServiceHandle(hScm))
throw new Win32Exception();
}
}
[DllImport("advapi32.dll", CharSet=CharSet.Auto, SetLastError=true)]
private static extern IntPtr OpenSCManager(
string lpMachineName,
string lpDatabaseName,
uint dwDesiredAccess);
[DllImport("advapi32.dll", CharSet=CharSet.Auto, SetLastError=true)]
private static extern IntPtr OpenService(
IntPtr hSCManager,
string lpServiceName,
uint dwDesiredAccess);
[StructLayout(LayoutKind.Sequential, CharSet=CharSet.Auto)]
private struct QUERY_SERVICE_CONFIG {
public uint dwServiceType;
public uint dwStartType;
public uint dwErrorControl;
public string lpBinaryPathName;
public string lpLoadOrderGroup;
public uint dwTagId;
public string lpDependencies;
public string lpServiceStartName;
public string lpDisplayName;
}
[DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
private static extern bool QueryServiceConfig(
IntPtr hService,
IntPtr lpServiceConfig,
uint cbBufSize,
out uint pcbBytesNeeded);
[DllImport("advapi32.dll", CharSet=CharSet.Auto, SetLastError=true)]
[return: MarshalAs(UnmanagedType.Bool)]
private static extern bool ChangeServiceConfig(
IntPtr hService,
uint dwServiceType,
uint dwStartType,
uint dwErrorControl,
string lpBinaryPathName,
string lpLoadOrderGroup,
IntPtr lpdwTagId,
string lpDependencies,
string lpServiceStartName,
string lpPassword,
string lpDisplayName);
[DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
private static extern bool CloseServiceHandle(
IntPtr hSCObject);
private const uint SERVICE_NO_CHANGE = 0xffffffffu;
private const uint SC_MANAGER_ALL_ACCESS = 0xf003fu;
private const uint SERVICE_ALL_ACCESS = 0xf01ffu;
}
}
¿Te refieres a los parámetros de la línea de comando? ¿Por qué no usar app.config para configurar tu servicio? – cdonner