Gets a constant from an array of constants. An array is made up of elements.
D3DXHANDLE GetConstantElement( D3DXHANDLE hConstant, UINT Index );
Returns a unique identifier to the element constant.
To get a constant that is not part of an array, use ID3DXConstantTable::GetConstant or ID3DXConstantTable::GetConstantByName.
Header: Declared in D3dx9shader.h.