See external documentation: wxMemoryDC.
This class is derived (and can use functions) from:
wxDC
new(Dc::wxDC() (see module wxDC) | wxBitmap() (see module wxBitmap)) -> wxMemoryDC()
selectObject(This::wxMemoryDC(), Bmp::wxBitmap() (see module wxBitmap)) -> ok
selectObjectAsSource(This::wxMemoryDC(), Bmp::wxBitmap() (see module wxBitmap)) -> ok
destroy(This::wxMemoryDC()) -> ok