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A callback function that must be implemented by a user to set the texture stage state.
Syntax
HRESULT SetTextureStageState(
DWORD Stage, D3DTEXTURESTAGESTATETYPE Type, DWORD Value );
Parameters
- Stage
- [in] The stage that the texture is assigned to. This is the index value in IDirect3DDevice9::SetTexture or IDirect3DDevice9::SetTextureStageState.
- Type
- [in] Defines the type of operation that a texture stage will perform. See D3DTEXTURESTAGESTATETYPE.
- Value
- [in] Can be either an operation (D3DTEXTUREOP) or an argument value (D3DTA), depending on what is chosen for Type.
Return Value
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::SetTextureStageState) will fail.