Retrieves a state value for an assigned texture.
HRESULT GetTextureStageState( DWORD Stage, D3DTEXTURESTAGESTATETYPE Type, DWORD * pValue );
If the method succeeds, the return value is D3D_OK. If the method fails, the return value can be D3DERR_INVALIDCALL.
This method will not return device state for a device that is created using D3DCREATE_PUREDEVICE. If you want to use this method, you must create your device with any of the other flag values in D3DCREATE."
Header: Declared in D3d9.h.
IDirect3DDevice9::SetTextureStageState, IDirect3DDevice9::GetTexture, IDirect3DDevice9::SetTexture