Tkinter - OpenGL Frame using ctypes
An opengl frame for pyopengl-tkinter based on ctypes (no togl compilation)
Collected together by Jon Wright, Jan 2018.
Based on the work of others
C + Tcl/Tk example: http://github.com/codeplea/opengl-tcltk/ (zlib license) Article at: https://codeplea.com/opengl-with-c-and-tcl-tk
Python + Tkinter (no pyopengl) example: http://github.com/arcanosam/pytkogl/ (The Code Project Open License) Article at http://www.codeproject.com/Articles/1073475/OpenGL-in-Python-with-TKinter
Large regions of code copied from pyopengl/Tk/init.py