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

Draws a Bézier spline defined by four ordered pairs of coordinates that represent points.

Namespace:  System.Drawing
Assembly:  System.Drawing (in System.Drawing.dll)
'Declaration
Public Sub DrawBezier ( _
	pen As Pen, _
	x1 As Single, _
	y1 As Single, _
	x2 As Single, _
	y2 As Single, _
	x3 As Single, _
	y3 As Single, _
	x4 As Single, _
	y4 As Single _
)

Parameters

pen
Type: System.Drawing.Pen

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

x1
Type: System.Single

The x-coordinate of the starting point of the curve.

y1
Type: System.Single

The y-coordinate of the starting point of the curve.

x2
Type: System.Single

The x-coordinate of the first control point of the curve.

y2
Type: System.Single

The y-coordinate of the first control point of the curve.

x3
Type: System.Single

The x-coordinate of the second control point of the curve.

y3
Type: System.Single

The y-coordinate of the second control point of the curve.

x4
Type: System.Single

The x-coordinate of the ending point of the curve.

y4
Type: System.Single

The y-coordinate of the ending point of the curve.

ExceptionCondition
ArgumentNullException

pen is Nothing.

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 PaintEventArgs e, which is a parameter of the Paint event handler. The code performs the following actions:

  • Creates a black pen.

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

  • Draws the Bézier curve to the screen.


' Begin Example03. 
Private Sub DrawBezierFloat(ByVal e As PaintEventArgs)

    ' Create pen. 
    Dim blackPen As New Pen(Color.Black, 3)

    ' Create coordinates of points for curve. 
    Dim startX As Single = 100.0F
    Dim startY As Single = 100.0F
    Dim controlX1 As Single = 200.0F
    Dim controlY1 As Single = 10.0F
    Dim controlX2 As Single = 350.0F
    Dim controlY2 As Single = 50.0F
    Dim endX As Single = 500.0F
    Dim endY As Single = 100.0F

    ' Draw arc to screen.
    e.Graphics.DrawBezier(blackPen, startX, startY, controlX1, _
    controlY1, controlX2, controlY2, endX, endY)
End Sub

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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