Method function IGDIPlus.IGPGraphicsPath.Widen(IGPPen;IGPMatrix;Single) : TGPGraphicsPath

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Class: IGPGraphicsPath

Contents

Syntax

Delphi:

function Widen( pen : IGPPen, matrix : IGPMatrix, flatness : Single ) : TGPGraphicsPath;

C++ Builder:

TGPGraphicsPath __fastcall Widen( IGPPen pen, IGPMatrix matrix, float flatness );

Visual C++ (MFC):

Widen(  pen,  matrix,  flatness );

Summary

Replaces this path with curves that enclose the area that is filled when the path is drawn by a specified pen.

Description

Call this method to replace the path with curves that enclose

the area that is filled when this path is drawn by a
specified pen. The Widen method also flattens the path.



Example:

The following example creates a TGPGraphicsPath object and
adds a closed curve to the path. The code creates a green pen
that has a width of 10 and passes the address of that pen to
the Widen method. Then the code draws the path with a blue
pen of width 1.

var
  AGraphics : IGPGraphics;
  APath     : IGPGraphicsPath;

begin
  AGraphics := TGPGraphics.Create( ACanvas );
  APath := TGLPath.Create();


  APath.AddClosedCurve( [

      MakePointF(20.0f, 20.0f),
      MakePointF(160.0f, 100.0f),
      MakePointF(140.0f, 60.0f),
      MakePointF(60.0f, 100.0f)
      ] );


  APath.Widen( TGPPen.Create( aclGreen, 10 ) );
  graphics.DrawPath( TGPPen.Create( aclBlue ), APath );
end;

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