Method function IGDIPlus.IGPGraphics.DrawBezier(IGPPen;Integer;Integer;Integer;Integer;Integer;Integer;Integer;Integer) : TGPGraphics

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Class: IGPGraphics

Syntax

Delphi:

function DrawBezier( pen : IGPPen, x1 : Integer, y1 : Integer, x2 : Integer, y2 : Integer, x3 : Integer, y3 : Integer, x4 : Integer, y4 : Integer ) : TGPGraphics;

C++ Builder:

TGPGraphics __fastcall DrawBezier( IGPPen pen, int x1, int y1, int x2, int y2, int x3, int y3, int x4, int y4 );

Visual C++ (MFC):

DrawBezier(  pen,  x1,  y1,  x2,  y2,  x3,  y3,  x4,  y4 );

Summary

Draws a Bézier spline.

Description

Call this method to draw a Bézier spline.

Example:

The following example draws a Bézier curve.

var
  AGraphics  : IGPGraphics;
  APath      : IGPGraphicsPath;
  ARedBrush  : IGSolidBrush;
  ABlueBrush : IGSolidBrush;

begin
  AGraphics := TGPGraphics.Create( ACanvas );

  // Set up the pen and curve points.
  Pen greenPen(Color(255, 0, 255, 0));

   //Draw the curve.
  AGraphics.DrawBezier( TGLPen.Create( aclGreen ), 100, 100, 200, 10, 350, 50, 500, 100 );

   //Draw the end points and control points.

  ARedBrush := TGSolidBrush.Create( aclRed );
  ABlueBrush := TGSolidBrush.Create( aclBlue );

  AGraphics.FillEllipse(ARedBrush, 100 - 5, 100 - 5, 10, 10);
  AGraphics.FillEllipse(ARedBrush, 500 - 5, 100 - 5, 10, 10);
  AGraphics.FillEllipse(ABlueBrush, 200 - 5, 10 - 5, 10, 10);
  AGraphics.FillEllipse(ABlueBrush, 350 - 5, 50 - 5, 10, 10);

Remarks A Bézier spline does not pass through its control points. The control points act as magnets, pulling the curve in certain directions to influence the way the Bézier spline bends.