ID2D1Geometry.ComputeLength

Undocumented in source but is binding to Windows. You might be able to learn more by searching the web for its name.
  1. HRESULT ComputeLength(D2D1_MATRIX_3X2_F* worldTransform, float* length)
    interface ID2D1Geometry
    extern (Windows)
    HRESULT
    ComputeLength
  2. HRESULT ComputeLength(D2D1_MATRIX_3X2_F* worldTransform, float flatteningTolerance, float* length)

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