You will need to derive your own class from Button (or ButtonBase) and
then use the Region property to set the shape of your button. Then in
the OnPaint override, you will have to paint your button as desired.
Here is a very simple class that illustrates this:
Imports System.Drawing.Drawing2D
Public Class RoundButton
Inherits Button
Private _regionSet As Boolean = False
Protected Overrides Sub OnPaint(ByVal pevent As
System.Windows.Forms.PaintEventArgs)
Dim borderPen As New Pen(Color.Blue, 4)
Dim gp As New GraphicsPath()
gp.AddEllipse(Me.ClientRectangle)
If Not _regionSet Then
Me.Region = New Region(gp)
_regionSet = True
End If
pevent.Graphics.FillPath(Brushes.Red, gp)
pevent.Graphics.DrawPath(borderPen, gp)
gp.Dispose()
borderPen.Dispose()
End Sub
End Class
Now you will have to adjust to suit your needs. In particular, how the
button is painted for both button down and button up states as well as
the disabled state. But this should give you some ideas.
Chris
