MFCreateMediaExtensionActivate function (mfapi.h)

Creates an activation object for a Windows Runtime class.

Syntax

HRESULT MFCreateMediaExtensionActivate(
  [in]  PCWSTR   szActivatableClassId,
  [in]  IUnknown *pConfiguration,
  [in]  REFIID   riid,
  [out] LPVOID   *ppvObject
);

Parameters

[in] szActivatableClassId

The class identifier that is associated with the activatable runtime class.

[in] pConfiguration

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

[in] riid

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

• IClassFactory
• IMFActivate
• IPersistStream

[out] ppvObject

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

Return value

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

Remarks

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

Requirements

See also

Media Foundation Functions