pythonctypes

Ctypes problem What is the difference between POINTER and pointer?

I am new to python ctypes, What is the difference between POINTER() and pointer() , and what are their functions?

Solution

  • POINTER() creates a type. pointer() creates an instance.

    For example, in C:

    typedef int* PINT;

    Would be:

    import ctypes
PINT = ctypes.POINTER(ctypes.c_int)

    Whereas:

    int value = 5;
int* p = &value;

    Would be:

    import ctypes
value = ctypes.c_int(5)
p = ctypes.pointer(value)