Retrieves a render-state value for a device.
- State [in]
Device state variable that is being queried. This parameter can be any member of the D3DRENDERSTATETYPE enumerated type.
- pValue [out, retval]
Pointer to a variable that receives the value of the queried render state variable when the method returns.
If the method succeeds, the return value is D3D_OK. D3DERR_INVALIDCALL if one of the arguments is invalid.
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 values in D3DCREATE."