GraphicsPath::Widen method (gdipluspath.h)

The GraphicsPath::Widen method replaces this path with curves that enclose the area that is filled when this path is drawn by a specified pen. The GraphicsPath::Widen method also flattens the path.


Status Widen(
  [in] const Pen    *pen,
  [in] const Matrix *matrix,
  [in] REAL         flatness


[in] pen

Type: const Pen*

Pointer to a Pen object. The path is made as wide as it would be when drawn by this pen.

[in] matrix

Type: const Matrix*

Optional. Pointer to a Matrix object that specifies a transformation to be applied along with the widening. If this parameter is NULL, no transformation is applied. The default value is NULL.

[in] flatness

Type: REAL

Optional. Real number that specifies the maximum error between the path and its flattened approximation. Reducing the flatness increases the number of line segments in the approximation. The default value is FlatnessDefault, which is a constant defined in Gdiplusenums.h.

Return value

Type: Status

If the method succeeds, it returns Ok, which is an element of the Status enumeration.

If the method fails, it returns one of the other elements of the Status enumeration.


Minimum supported client Windows XP, Windows 2000 Professional [desktop apps only]
Minimum supported server Windows 2000 Server [desktop apps only]
Target Platform Windows
Header gdipluspath.h (include Gdiplus.h)
Library Gdiplus.lib
DLL Gdiplus.dll

See also

Clipping with a Region

Constructing and Drawing Paths

Creating a Path Gradient

Flattening Paths