MFCreateMediaExtensionActivate

Creates an activation object for a Windows Runtime class.

Syntax

HRESULT MFCreateMediaExtensionActivate(
         PCWSTR szActivatableClassId,
         IUnknown *pConfiguration,
         REFIID riid,
         LPVOID *ppvObject
)  

Parameters

szActivatableClassId
Type: PCWSTR 

[in] The class identifier that is associated with the activatable runtime class.

pConfiguration
Type: IUnknown *

[in, optional] A pointer to an optional IPropertySet object, which is used to configure the Windows Runtime class. This parameter can be NULL.

riid
Type: REFIID 

[in] The interface identifier (IID) of the interface being requested. The activation object created by this function supports the following interfaces:

• IClassFactory
• IMFActivate
• IPersistStream

ppvObject
Type: LPVOID *

[out] Receives a pointer to the requested interface. The caller must release the interface.

Return value

Type: HRESULT 

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Refer to Media Foundation return codes.

Remarks

To create the Windows Runtime object, call IMFActivate::ActivateObject or IClassFactory::CreateInstance.

Requirements

Header: Declared in mfapi.h.

Library: Use Mfplat.lib.