IServiceProviderImpl Class
This class provides a default implementation of the IServiceProvider interface.
template <
class T
>
class ATL_NO_VTABLE IServiceProviderImpl :
public IServiceProvider
Parameters
- T
Your class, derived from IServiceProviderImpl.
Members
Public Methods
Name |
Description |
|---|---|
Creates or accesses the specified service and returns an interface pointer to the specified interface for the service. |
Remarks
The IServiceProvider interface locates a service specified by its GUID and returns the interface pointer for the requested interface on the service. Class IServiceProviderImpl provides a default implementation of this interface.
IServiceProviderImpl specifies one method: QueryService, which creates or accesses the specified service and returns an interface pointer to the specified interface for the service.
IServiceProviderImpl uses a service map, starting with BEGIN_SERVICE_MAP and ending with END_SERVICE_MAP.
The service map contains two entries: SERVICE_ENTRY, which indicates a specified service id (SID) supported by the object, and SERVICE_ENTRY_CHAIN, which calls QueryService to chain to another object.
Inheritance Hierarchy
IServiceProvider
IServiceProviderImpl
Requirements
Header: atlcom.h