[WxPython] wx.DC.CalcBoundingBox

[menator01]

Could someone give me an example of wx.DC.CalcBoundingBox. In my project creating the die (square), I would like to set up a functions/methods to place the die dots inside the object (die squares). As of current I'm have to position them using the whole window. I would like to use the squares as a starting point for the reference.
Any help would be great.