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Graphics.DrawBezier Method (Pen, PointF, PointF, PointF, PointF)

Draws a Bézier spline defined by four PointF structures.

Namespace: System.Drawing
Assembly: System.Drawing (in system.drawing.dll)

public void DrawBezier (
	Pen pen,
	PointF pt1,
	PointF pt2,
	PointF pt3,
	PointF pt4
)
public void DrawBezier (
	Pen pen, 
	PointF pt1, 
	PointF pt2, 
	PointF pt3, 
	PointF pt4
)
public function DrawBezier (
	pen : Pen, 
	pt1 : PointF, 
	pt2 : PointF, 
	pt3 : PointF, 
	pt4 : PointF
)
Not applicable.

Parameters

pen

Pen that determines the color, width, and style of the curve.

pt1

PointF structure that represents the starting point of the curve.

pt2

PointF structure that represents the first control point for the curve.

pt3

PointF structure that represents the second control point for the curve.

pt4

PointF structure that represents the ending point of the curve.

Exception typeCondition

ArgumentNullException

pen is a null reference (Nothing in Visual Basic).

The Bézier spline is drawn from the first point to the fourth point. The second and third points are control points that determine the shape of the curve.

The following code example is designed for use with Windows Forms, and it requires PaintEventArgse, which is a parameter of the Paint event handler. The code performs the following actions:

  • Creates a black pen.

  • Creates the start, end, and two control points for the curve.

  • Draws the Bézier curve to the screen.

private void DrawBezierPointF(PaintEventArgs e)
{
    // Create pen.
    Pen blackPen = new Pen(Color.Black, 3);
             
    // Create points for curve.
    PointF start = new PointF(100.0F, 100.0F);
    PointF control1 = new PointF(200.0F, 10.0F);
    PointF control2 = new PointF(350.0F, 50.0F);
    PointF end = new PointF(500.0F, 100.0F);
             
    // Draw arc to screen.
    e.Graphics.DrawBezier(blackPen, start, control1, control2, end);
}

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

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