Gets a handle to an open fileFILE *sm_fio_handle(int file_stream);
A handle to the required file stream, obtained by sm_fio_open.
FILE* pointer to a JPL file stream opened by
sm_fio_open. You can pass this handle to routines written in C. This function lets you write your own extensions to Panther file I/O functions.
Note: This function cannot be called from JPL.