pocketpy/docs/bindings.md

icon	title	order
cpu	Write C Bindings	18

In order to use a C/C++ library in python, you need to write bindings for it.

pkpy uses an universal signature to wrap a C function pointer as a python function or method, i.e py_CFunction.

typedef bool (*py_CFunction)(int argc, py_Ref argv);

• argc is the number of arguments passed to the function.
• argv is the pointer to the first argument.

If successful, the function should return true and set the return value in py_retval(). In case there is no return value, you should use py_newnone(py_retval()). If an error occurs, the function should raise an exception and return false.

See also:

• py_bind
• py_bindmethod
• py_bindfunc
• py_bindproperty
• py_newmodule
• py_newtype