ID3D11Resource::GetEvictionPriority
DX11 vtable[9] → UINT
ID3D11Resource::GetEvictionPriority is a method of the COM interface ID3D11Resource in Direct3D 11. Its function pointer sits at vtable index 9 — the zero-based slot in that interface's virtual method table, counted from QueryInterface and including every entry inherited from a base interface. It takes no parameters and returns UINT.
COM methods are reached through that table rather than by an exported name, so the slot index is what a wrapper, an interface hook or a disassembly listing has to resolve against.