Cannot create wx.GraphicsContext from wx.msw.MetafileDC

[DietmarSchwertberger]

Operating system: Windows 10
wxPython version: 4.0.1
Stock or custom build: Stock
Python version: 3.6, 64 bit
Stock or custom build: stock

Description of the problem:
GraphicsContext.Create does not accept a MetafileDC as argument. Classic did.

>>> import wx, wx.msw
>>> app = wx.App()
>>> dc = wx.msw.MetafileDC()
>>> gc = wx.GraphicsContext.Create(dc)
Traceback (most recent call last):
  Python Shell, prompt 9, line 1
builtins.TypeError: GraphicsContext.Create(): arguments did not match any overloaded call:
  overload 1: argument 1 has unexpected type 'MetafileDC'
  overload 2: argument 1 has unexpected type 'MetafileDC'
  overload 3: argument 1 has unexpected type 'MetafileDC'
  overload 4: argument 1 has unexpected type 'MetafileDC'
  overload 5: argument 1 has unexpected type 'MetafileDC'
  overload 6: too many arguments

The Classic code:

>>> import wx
>>> app = wx.App()
>>> dc = wx.MetaFileDC()
>>> gc = wx.GraphicsContext_Create(dc)

[RobinD42]

Fixed by #845

[DietmarSchwertberger]

@RobinD42 : thanks a lot. I have now a prototype of an EMF backend for matplotlib running. It's working well, including clipping.