Opens an existing service.

OpenService.cpp

// OpenService function is part of the Windows API, and it is used to open a handle to an existing service in the Service Control Manager (SCM) database. The SCM is responsible for managing services on a Windows system.

#include <iostream>
#include <windows.h>
using namespace std;
int main()
  {
    const wchar_t *serviceName = L"AdobeARMservice";

    SC_HANDLE scmHandle = OpenSCManager(NULL,NULL,SC_MANAGER_CONNECT);

    if(scmHandle == NULL)
      {
      cerr<<"Error Opening Service Control Manager, Error No: "<<GetLastError()<<endl;
      system("PAUSE");
      return 1;
      }

    cout<<"Service Control Manager Opened Successfully "<<endl;

    SC_HANDLE serviceHandle = OpenService(scmHandle,serviceName,SERVICE_QUERY_STATUS);

    if(serviceHandle == NULL)
      {
      cerr<<"Error Opening Service, Error No: "<<GetLastError()<<endl;
      system("PAUSE");
      return 1;
      }

    cout<<"Service Opened Successfully "<<endl;
    CloseServiceHandle(serviceHandle);
    cout<<"Service Closed Successfully "<<endl;

    CloseServiceHandle(scmHandle);
    cout<<"Service Control Manager Closed Successfully "<<endl;

    system("PAUSE");
    return 0;

  }