DrawPolygon Method (Pen, PointF[])
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Graphics.DrawPolygon Method (Pen, PointF())

 

Draws a polygon defined by an array of PointF structures.

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

Public Sub DrawPolygon (
	pen As Pen,
	points As PointF()
)

Parameters

pen
Type: System.Drawing.Pen

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

points
Type: System.Drawing.PointF()

Array of PointF structures that represent the vertices of the polygon.

Exception Condition
ArgumentNullException

pen is null.

-or-

points is null.

Every pair of two consecutive points in the array specifies a side of the polygon. In addition, if the last point and the first of the array point do not coincide, they specify the last side of the polygon.

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 an array of seven points for the vertices of the polygon.

  • Draws the polygon to the screen.

Public Sub DrawPolygonPointF(ByVal e As PaintEventArgs)

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

    ' Create points that define polygon.
    Dim point1 As New PointF(50.0F, 50.0F)
    Dim point2 As New PointF(100.0F, 25.0F)
    Dim point3 As New PointF(200.0F, 5.0F)
    Dim point4 As New PointF(250.0F, 50.0F)
    Dim point5 As New PointF(300.0F, 100.0F)
    Dim point6 As New PointF(350.0F, 200.0F)
    Dim point7 As New PointF(250.0F, 250.0F)
    Dim curvePoints As PointF() = {point1, point2, point3, point4, _
    point5, point6, point7}

    ' Draw polygon curve to screen.
    e.Graphics.DrawPolygon(blackPen, curvePoints)
End Sub

.NET Framework
Available since 1.1
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