ID2D1Geometry.GetWidenedBounds

Undocumented in source but is binding to Windows. You might be able to learn more by searching the web for its name.

HRESULT GetWidenedBounds(float strokeWidth, ID2D1StrokeStyle strokeStyle, D2D1_MATRIX_3X2_F* worldTransform, D2D1_RECT_F* bounds)
interface ID2D1Geometry
extern (Windows)
HRESULT
GetWidenedBounds
(
float strokeWidth
,
ID2D1StrokeStyle strokeStyle
,
const D2D1_MATRIX_3X2_F* worldTransform
,
D2D1_RECT_F* bounds
)
HRESULT GetWidenedBounds(float strokeWidth, ID2D1StrokeStyle strokeStyle, D2D1_MATRIX_3X2_F* worldTransform, float flatteningTolerance, D2D1_RECT_F* bounds)

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aurora directx d2d1 d2d1_0 ID2D1Geometry functions