ID3DXEffectStateManager::SetLight

A callback function that must be implemented by a user to set a light.

HRESULT SetLight(
  DWORD Index,
  CONST D3DLight9* pLight
);

Parameters

Index

[in] The zero-based index of the light. This is the same index in IDirect3DDevice9::SetLight.

pLight

[in] The light object. See D3DLIGHT9.

Return Values

The user-implemented method should return S_OK. If the callback fails when setting the device state, either of the following will occur:

• The effect will fail during ID3DXEffect::BeginPass.
• The dynamic effect state call (such as IDirect3DDevice9::SetLight) will fail.

Requirements

Header: Declared in D3dx9effect.h.