IClassFactory2::CreateInstanceLic (Windows CE 5.0)

项目
09/14/2012

This method creates an instance of the object class supported by this class factory, given a license key previously obtained from IClassFactory2::RequestLicKey.

This method is the only possible means to create an object on an otherwise unlicensed machine.

HRESULT CreateInstanceLic(IUnknown* pUnkOuter,IUnknown* pUnkReserved,REFIID riid,BSTR bstrKey,void** ppvObject);

Parameters

pUnkOuter
[in] Pointer to the controlling IUnknown interface on the outer unknown if this object is being created as part of an aggregate.

If the object is not part of an aggregate, this parameter must be NULL.
pUnkReserved
[in] Unused. Must be NULL.
riid
[in] Reference to the identifier of the interface to be used to communicate with the newly created object.
bstrKey
[in] Run-time license key previously obtained from IClassFactory2::RequestLicKey that is required to create an object.
ppvObject
[out] Address of pointer variable that receives the interface pointer requested in riid.

Upon successful return, *ppvObject contains the requested interface pointer.

If an error occurs, the implementation must set *ppvObject to NULL.

Return Values

This method supports the standard return values E_INVALIDARG, E_OUTOFMEMORY, and E_UNEXPECTED, as well as the following:

S_OK
The license was created.
E_NOTIMPL
This method is not implemented because objects can only be created on fully licensed machines through IClassFactory::CreateInstance.
E_POINTER
The pointers passed in bstrKey or ppvObject are not valid. For example, it can be NULL.
E_NOINTERFACE
The object can be created (and the license key is valid) except the object does not support the interface specified by riid.
CLASS_E_NOAGGREGATION
The pUnkOuter parameter is non-NULL, but this object class does not support aggregation.
CLASS_E_NOTLICENSED
The key provided in bstrKey is not a valid license key.

Remarks

To determine whether the platform supports this interface, see Determining Supported COM APIs.

Notes to Implementers

If the class factory does not provide a license key (that is, IClassFactory2::RequestLicKey returns E_NOTIMPL and the fRuntimeKeyAvail member in LICINFO is set to FALSE in IClassFactory2::GetLicInfo), this method can also return E_NOTIMPL.

In such cases, the class factory is implementing IClassFactory2 to specify whether the machine is licensed through the fLicVerified member of LICINFO.

Requirements

OS Versions: Windows CE 3.0 and later.
Header: Ocidl.h, Ocidl.idl.
Link Library: Ole32.lib, Uuid.lib.

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