The wxPython tutorial

The Graphics Device Interfacehttp://www.zetcode.com/wxpython/gdi/dc.DrawRectangle(10, 105, 90, 60)dc.SetPen(wx.Pen('#4c4c4c', 1, wx.DOT_DASH))dc.DrawRectangle(130, 105, 90, 60)dc.SetPen(wx.Pen('#4c4c4c', 1, wx.TRANSPARENT))dc.DrawRectangle(250, 105, 90, 60)app = wx.App()Pens(None, -1, 'Pens')app.MainLoop()If we don't specify a custom brush, a default one is used. Thedefault brush is wx.WHITE_BRUSH. The perimeter of therectangles is drawn by the pen. The last one has no border. Itis transparent, e.g. not visible.Figure: PensJoins and CapsA pen object has additional two parameters. The Join and theCap. The Join defines how joins between lines will be drawn.The Join style has the following options:wx.JOIN_MITERwx.JOIN_BEVELwx.JOIN_ROUNDWhen using wx.JOIN_MITER the outer edges of the lines areextended. They meet at an angle, and this area is filled. Inwx.JOIN_BEVEL the triangular notch between two lines isfilled. In wx.JOIN_ROUND the circular arc between the twolines is filled. The default value is wx.JOIN_ROUND.The Cap defines how the line ends will be drawn by the pen.10 de 44 27/04/2008 1:08