ID3DXEffectStateManager::LightEnable method

A callback function that must be implemented by a user to enable/disable a light.

Syntax

HRESULT LightEnable(
  [in] DWORD Index,
  [in] BOOL  Enable
);

Index [in]

Type: DWORD

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

Enable [in]

Type: BOOL

True to enable the light, false otherwise.

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::LightEnable) will fail.

Requirement	Value
Header	D3DX9Effect.h
Library	D3dx9.lib