Driver loading.

To load the driver properly, follow these steps:

1. Call openscmanager to open the SCM manager. If null is returned, an error is returned; otherwise, the next step is continued;

2. Call createservice to create a service. If the returned value obtained by getlasterror is error_io_pending, it indicates that the service has been created and openservice is used to open the service.

3. Call startservice to enable the Service.

Openscmanager --> createservice --> openservice --> startservice --> closeservicehandle

SC _handle openscmanager (

Lpctstr Lpmachinename,
// Point to the computer name. null indicates pointing to the local machine.
 

Lpctstr Lpdatabasename,
// SCM database name. The default value is null.

 DWORD Dwdesiredaccess// The permission is generally set to SC _manager_all_access, indicating that all permissions are granted.

);

// The SCM handle to close

Boolcloseservicehandle (SC _handle Hscobject)

// Open the Service Control Manager

Openscmanager (null, null, SC _manager_all_access );

 

// Create the service corresponding to the driver

Createservice (hservicemgr, // SCM manager handle

Lpszdrivername, // name of the driver in the Registry

Lpszdrivername, // displayname value of the registry driver

Service_all_access, // access permission for loading the driver

Service_kernel_driver, // indicates that the loaded service is a driver.

Service_demand_start, // The start value of the registry driver

Service_error_ignore, // The errorcontrol value of the registry driver

Szdriverimagepath, // The ImagePath value of the registry driver

Null, // user group to enable the Service

Null, // output validation tag

Null, // The Name Of The dependent service

Null, // User Account Name

Null); // User Password

 

// The driver has been loaded. You only need to open

Openservice (hservicemgr, lpszdrivername, service_all_access );

// Enable this service

Startservice (hserviceddk, null, null );