This class allows platforms to implement functionality to optimise GDI objects, such as wx.Pen, wx.Brush and wx.Font.
On Windows, the underling GDI objects are a scarce resource and are cleaned up when a usage count goes to zero. On some platforms this class may not have any special functionality.
Since the functionality of this class is platform-specific, it is not documented here in detail.
wx.Bitmap, wx.Brush, wx.Cursor, wx.Font, wx.Icon, wx.IconBundle, wx.Palette, wx.Pen, wx.Region