CServiceHelper

• Download source files - 2 KB

Introduction

The CServiceHelper class is a class I wrote when I was distributing Service programs and I found that I was repeatedly having to write a program to install the service, another program to uninstall the service and quite often yet another program to start/stop the service. So I wrote a simple class that allows me to easily install, delete, start, stop, pause and continue a Win32 service. The class is very simple in nature and purpose and it is not an exhaustive class in the sense that there are lots of other operations you might want to do with a service. But I have covered the most frequently used operations and if anyone would like to extend this class, they are quite welcome to do so. While installing the service I am only allowing the two most common options - automatic starting and manual starting services. There are other options available and as I already said, I'd be very happy if anyone wants to enhance the class.

CServiceHelper members

BOOL CServiceHelper::Create()

This function is used to install a service on the target machine. It returns true on success and false on failure.

CServiceHelper m_sh;
m_sh.SetServiceDisplayName("Hello Service 2000");
m_sh.SetServiceName("HelloService2000");
m_sh.SetServicePath("D:\\nish\\Hello2000.exe"); 
m_sh.SetAutoStart(true); 
m_sh.Create();

BOOL CServiceHelper::Delete()

This function is used to uninstall a service from the target machine. It returns true on success and false on failure.

CServiceHelper m_sh; 
m_sh.SetServiceName("HelloService2000");
m_sh.Delete();

BOOL CServiceHelper::Start()

This function is used to start a service installed on the target machine. It returns true on success and false on failure.

CServiceHelper m_sh; 
m_sh.SetServiceName("HelloService2000");
m_sh.Start();

BOOL CServiceHelper::Stop()

This function is used to stop a running service installed on the target machine. It returns true on success and false on failure.

CServiceHelper m_sh; 
m_sh.SetServiceName("HelloService2000");
m_sh.Stop();

BOOL CServiceHelper::Pause()

This function is used to pause a running service installed on the target machine. It returns true on success and false on failure.

CServiceHelper m_sh; 
m_sh.SetServiceName("HelloService2000");
m_sh.Pause();

BOOL CServiceHelper::Continue()

This function is used to continue a paused service installed on the target machine. It returns true on success and false on failure.

CServiceHelper m_sh; 
m_sh.SetServiceName("HelloService2000");
m_sh.Continue();

void CServiceHelper::SetServiceName(LPCTSTR str)

This function is used to set the name of the service and must be compulsorily called before any of the major functions are called.

m_sh.SetServiceName("HelloService2000");

void CServiceHelper::SetServiceDisplayName(LPCTSTR str)

This function is used to set the display name of the service. It should be called before calling Create()

m_sh.SetServiceDisplayName("Hello Service 2000");

void CServiceHelper::SetServicePath(LPCTSTR str)

This function is used to set the path to the service executable. It should be called before calling Create()

m_sh.SetServicePath("D:\\nish\\Hello2000.exe"); 

void CServiceHelper::SetAutoStart(BOOL b)

This function is used to set whether the service starts automatically at boot-up or whether it is manually started by the user. Set this to true for automatic starting and false otherwise.

m_sh.SetAutoStart(true); 

Tips

You can actually use an instance of the class to handle multiple services. Just change the members of the m_serviceinfo struct and call the required function. I'll show a simple example below.

CServiceHelper m_sh; 
m_sh.SetServiceName("HelloService2000"); 
m_sh.Stop(); //we stop the old service 

m_sh.SetServiceName("HelloService3000");
m_sh.Start(); //and start the new one

History

Within 6 hours after I had posted this class, I got severely criticized for the non-OOP approach I had adopted. I therefore posted a question on the Lounge and I got very useful replies from several gentlemen like Chris Losinger, John Simmons, Kilowatt, Tim Smith, Nemenja, Michael Butler, James T Johnson to name but a few of those really nice fellows who helped me out in a very kind display of helpful mindedness. I am very thankful to them for helping me correct my errored ways.