Notifies the host that a new document context is being created and allows the host to optionally return a controlling unknown for the new context.
HRESULT OnCreateDocumentContext( IUnknown** ppunkOuter );
- ppunkOuter
[out] An object that controls the new context.
The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.
Value | Description |
|---|---|
S_OK | The method succeeded. |
E_NOTIMPL | The host does not provide a controlling object. |
This method allows the host to add new functionality to the helper-provided document contexts. This method may return E_NOTIMPL or a null outer object, in which case the caller is responsible for creating the context.