Elizabeth Figura (@zfigura) commented about dlls/d3d9/d3d9_private.h:
struct wined3d_output **wined3d_outputs; unsigned int wined3d_output_count; BOOL extended;
- BOOL d3d9on12;
- struct D3D9ON12_ARGS *d3d9on12_args;
- UINT override_entries;
Let's not store these here as long as they're unused.