Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
Imports System.Math
public class PathGradientBrushesSetSigmaBellShape
public Shared Sub Main
Application.Run(New Form1)
End Sub
End class
public class Form1
Inherits System.Windows.Forms.Form
Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
Dim x As Integer = 10
Dim y As Integer = 10
Dim wid As Integer = 100
Dim hgt As Integer = 50
Dim rect_pts() As Point = { _
New Point(x, y), _
New Point(x + wid, y), _
New Point(x + wid, y + hgt), _
New Point(x, y + hgt) _
}
Dim path_brush As New PathGradientBrush(rect_pts)
Dim ellipse_path As New GraphicsPath
ellipse_path = New GraphicsPath
ellipse_path.AddEllipse(x, y, wid, hgt)
path_brush = New PathGradientBrush(ellipse_path)
path_brush.CenterColor = Color.White
path_brush.SurroundColors = New Color() {Color.Black}
path_brush.SetSigmaBellShape(0.5, 1)
e.Graphics.FillEllipse(path_brush, x, y, wid, hgt)
End Sub
Public Sub New()
MyBase.New()
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(292, 273)
Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
End Sub
End Class
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