{C} preliminary introduction to the Windows System Service Program

Windows Service programming instructions

 

Service_table_entryStructure array, which records the names of all services contained in the Service Program and the entry point functions of the Service.

Service_table_entry st [] =

{

{Szservicename, (Lpservice_main_function) servicemain },

{Null, null}

};

Startservicectrldispatcher (ST );

/*************************************** ***********************/

// Open the Service Control Manager

SC _handle hscm =: openscmanager (null, null, SC _manager_all_access );

// Open the service

SC _handle hservice =: openservice (hscm,Szservicename, Service_query_config );

: Closeservicehandle (hservice );

: Closeservicehandle (hscm );

// Create a service

SC _handle hservice =: createservice (

Hscm,

Szservicename,

Szservicename,

Service_all_access,

Service_win32_own_process,

Service_demand_start,

Service_error_normal,

Szfilepath, null, null, _ T (""), null, null );

: Closeservicehandle (hservice );

// Delete the service

SC _handle hservice =: openservice (hscm, szservicename, service_stop | delete );

Service_status status;

// Stop the service

: Controlservice (hservice, service_control_stop, & status );

// Delete the service

Bool bdelete =: deleteservice (hservice );

: Closeservicehandle (hservice );

: Closeservicehandle (hscm );

// Register Service Control

Hservicestatus = registerservicectrlhandler (szservicename, servicestrl );

Setservicestatus (hservicestatus, & status );

///////

Void winapi servicestrl (DWORD dwopcode)

{

Switch (dwopcode ){}

}

 

 

 

 

 

/*************************************** ***********************/

Createservice (

SC _handle hscmanager, // the handle of the registration database maintained by the Service Control Manager, which is returned by the system function openscmanager.

Lpwstr lpservicename, // service name ending with null, used to create a keyword in the registration database

Lpcwstr lpdisplayname, // service name ending with null, used to identify the service on the user interface

DWORD dwdesiredaccess, // specify the service return type

DWORD dwservicetype, // specify the service type

DWORD dwstarttype, // specify when to start the service

DWORD dwerrorcontrol, // specify the severity of Service Startup failure

Lpcwstr lpbinarypathname, // specify the path of the binary file of the Service Program (with parameters)

Lpcwstr lploadordergroup, // specify the name of the Service Group loaded in sequence

Lpdword lpdwtagid, // ignore, null

Lpcwstr lpdependencies, // specify the service or service group that must be started before starting the service

Lpwstr lpservicestartname, // string ending with null, specifying the service account. If it is null, the LocalSystem account is used.

Lpcwstr lppassword // string ending with null, specifying the corresponding password. Null indicates no password. However, if LocalSystem is used, enter null.

);