I have a cython’ized render routine that writes into a wxMemoryDC. The code to begin this on older versions that used SWIG looks like this:
def drawElements(self, dc, canvas, tick): """Draw elements in the list to the given dc """ elements = canvas.GetDrawPairs() # Uses bounds xoff, yoff = canvas.GetRenderOffsets() background_brushes, reason_brushes = canvas.GetBrushes() cdef SwigPyObject* ptr = <SwigPyObject*>dc.this cdef wxDC* c_dc = <wxDC*?>ptr.ptr assert c_dc != NULL <and then we continue to do stuff with the pointer to the c++ wxDC>
I should also mention that
dc is passed the results of
After the changeover to SIP, there is no longer a
this attribute on instances of
wxMemoryDC(). Can someone help me understand how I can get to the C++ internals of wxWidgets in my Cython with the 4.0+ version?