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A callback function that must be implemented by a user to set a vertex shader.
Syntax
HRESULT SetVertexShader(
LPDIRECT3DVERTEXSHADER9 pShader );
Parameters
- pShader
- [in] A pointer to a vertex shader object. See IDirect3DVertexShader9.
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::SetVertexShader) will fail.