Callbacks with ctypes (How to call a python function from C)

Question

Is it possible to call a Python function from a C dll function?

We consider this C function:

 void foo( void (*functionPtr)(int,int) , i         


        

Answer 1

Use CFUNCTYPE to create a callback type:

c_callback = CFUNCTYPE(None, c_int, c_int)(callback)
dll.foo(c_callback, a, b)