IDCompositionAffineTransform2DEffect.SetInterpolationMode

Undocumented in source but is binding to Windows. You might be able to learn more by searching the web for its name.
interface IDCompositionAffineTransform2DEffect
extern (Windows)
HRESULT
SetInterpolationMode
(
D2D1_2DAFFINETRANSFORM_INTERPOLATION_MODE interpolationMode
)

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