IClassFactory2::CreateInstanceLic method (ocidl.h)

Makale
10/13/2021

Creates an instance of the licensed object for the specified license key. This method is the only possible means to create an object on an otherwise unlicensed machine.

Syntax

HRESULT CreateInstanceLic(
  [in]  IUnknown *pUnkOuter,
  [in]  IUnknown *pUnkReserved,
  [in]  REFIID   riid,
  [in]  BSTR     bstrKey,
  [out] PVOID    *ppvObj
);

Parameters

[in] pUnkOuter

A 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.

[in] pUnkReserved

This parameter is unused and must be NULL.

[in] riid

A reference to the identifier of the interface to be used to communicate with the newly created object.

[in] bstrKey

Run-time license key previously obtained from IClassFactory2::RequestLicKey that is required to create an object.

[out] ppvObj

Address of pointer variable that receives the interface pointer requested in riid. Upon successful return, *ppvObj contains the requested interface pointer. If an error occurs, the implementation must set *ppvObj to NULL.

Return value

This method can return the standard return values E_INVALIDARG, E_OUTOFMEMORY, and E_UNEXPECTED, as well as the following values.

Return code	Description
S_OK	The license was successfully created.
E_NOTIMPL	This method is not implemented because objects can only be created on fully licensed machines through IClassFactory::CreateInstance.
E_POINTER	A pointer passed in bstrKey or ppvObj is not valid. For example, it may 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

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), then this method can also return E_NOTIMPL. In such cases, the class factory is implementing IClassFactory2 simply to specify whether the machine is licensed at all through the fLicVerified member of LICINFO.

Requirements

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Target Platform	Windows
Header	ocidl.h

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