Applications use the methods of the IDirect3DViewport interface to retrieve and set the properties of viewports. This section is a reference to the methods of this interface. For a conceptual overview, see IDirect3DViewport Interface.
The methods of the IDirect3DViewport interface can be organized into the following groups:
Backgrounds GetBackground
Initialization Initialize
Lights AddLight
Materials and viewports Clear
Transformation TransformVertices
The IDirect3DViewport interface, like all COM interfaces, inherits the IUnknown interface methods. The IUnknown interface supports the following three methods: