* Provides acces to parent object. * "Provides access to the parent cube texture or texture (mipmap) object, if this surface is a child * level of a cube texture or a mipmap. This method can also provide access to the parent swap chain * if the surface is a back-buffer child." * * "If the surface is created using CreateRenderTarget or CreateOffscreenPlainSurface or * CreateDepthStencilSurface,
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nothing calls this directly
no test coverage detected