IDCompositionArithmeticCompositeEffect.SetCoefficient1

Undocumented in source but is binding to Windows. You might be able to learn more by searching the web for its name.
  1. HRESULT SetCoefficient1(float Coeffcient1)
    interface IDCompositionArithmeticCompositeEffect
    extern (Windows)
    HRESULT
    SetCoefficient1
    ()
  2. HRESULT SetCoefficient1(IDCompositionAnimation animation)

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