How to pass FILE *

[xDog Walker]

The function I am trying to call wants a FILE *:

dlg_progressbox(const char *title,
const char *cprompt,
int height,
int width,
int pauseopt,
FILE *fp)

I can open the file to be referenced:

fp = os.fdopen(self.pipefds[0], 'r')

Every thing I've tried ends with ctypes raising a TypeError.