windows service

  • Thread starter Thread starter junior lopes
  • Start date Start date
J

junior lopes

i have 2 applications , 1º is in windows service and the other is
windows application.
i need to start, stop and pause service from windows application.
i have done that,but the problem is when i start the service, it works,
when i stop the service, it wors. but when i try to start again the
service, it does not work, i need to close the project and reopen and
then it works again.

Please Help
 
class ServiceInstaller
{
#region Private Variables

private string _servicePath;
private string _serviceName;
private string _serviceDisplayName;

#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 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_W
IN32_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("Success");
CloseServiceHandle(sc_handle);
return true;
}
}
else
//Console.WriteLine("SCM not opened successfully");
return false;

}
catch(Exception e)
{
throw e;
}
}



public bool UnInstallService(string svcName)
{
int GENERIC_WRITE = 0x40000000;
IntPtr sc_hndl = OpenSCManager(null,null,GENERIC_WRITE);

if(sc_hndl.ToInt32() !=0)
{
int DELETE = 0x10000;
IntPtr svc_hndl = OpenService(sc_hndl,svcName,DELETE);

if(svc_hndl.ToInt32() !=0)
{
int i = DeleteService(svc_hndl);
if (i != 0)
{
CloseServiceHandle(sc_hndl);
return true;
}
else
{
CloseServiceHandle(sc_hndl);
return false;
}
}
else
return false;
}
else
return false;
}

public bool Installer(string svcName)
{
bool Ativo=false;
int GENERIC_WRITE = 0x40000000;
IntPtr sc_hndl = OpenSCManager(null,null,GENERIC_WRITE);

if(sc_hndl.ToInt32() !=0)
{
int DELETE = 0x10000;
IntPtr svc_hndl = OpenService(sc_hndl,svcName,DELETE);

if(svc_hndl.ToInt32() !=0)
{
System.ServiceProcess.ServiceController myController =
new System.ServiceProcess.ServiceController(svcName);
if (myController.CanStop)
{
Ativo=true;
}
}
}
CloseServiceHandle(sc_hndl);
return Ativo;
}

public void StopService(string svcName)
{
System.ServiceProcess.ServiceController myController =
new System.ServiceProcess.ServiceController(svcName);
if (myController.CanStop)
{
myController.Stop();
myController.Refresh();
}
myController.Dispose();
}
public void Dispose()
{
System.GC.Collect();
}
}
 
Hi,

Why are you P/Invoking ??

Use ServiceController.Start|Stop to do this.

cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation



junior lopes said:
class ServiceInstaller
{
#region Private Variables

private string _servicePath;
private string _serviceName;
private string _serviceDisplayName;

#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 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_W
IN32_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("Success");
CloseServiceHandle(sc_handle);
return true;
}
}
else
//Console.WriteLine("SCM not opened successfully");
return false;

}
catch(Exception e)
{
throw e;
}
}



public bool UnInstallService(string svcName)
{
int GENERIC_WRITE = 0x40000000;
IntPtr sc_hndl = OpenSCManager(null,null,GENERIC_WRITE);

if(sc_hndl.ToInt32() !=0)
{
int DELETE = 0x10000;
IntPtr svc_hndl = OpenService(sc_hndl,svcName,DELETE);

if(svc_hndl.ToInt32() !=0)
{
int i = DeleteService(svc_hndl);
if (i != 0)
{
CloseServiceHandle(sc_hndl);
return true;
}
else
{
CloseServiceHandle(sc_hndl);
return false;
}
}
else
return false;
}
else
return false;
}

public bool Installer(string svcName)
{
bool Ativo=false;
int GENERIC_WRITE = 0x40000000;
IntPtr sc_hndl = OpenSCManager(null,null,GENERIC_WRITE);

if(sc_hndl.ToInt32() !=0)
{
int DELETE = 0x10000;
IntPtr svc_hndl = OpenService(sc_hndl,svcName,DELETE);

if(svc_hndl.ToInt32() !=0)
{
System.ServiceProcess.ServiceController myController =
new System.ServiceProcess.ServiceController(svcName);
if (myController.CanStop)
{
Ativo=true;
}
}
}
CloseServiceHandle(sc_hndl);
return Ativo;
}

public void StopService(string svcName)
{
System.ServiceProcess.ServiceController myController =
new System.ServiceProcess.ServiceController(svcName);
if (myController.CanStop)
{
myController.Stop();
myController.Refresh();
}
myController.Dispose();
}
public void Dispose()
{
System.GC.Collect();
}
}
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