How can I prove that fread calls ReadFile and fopen calls CreateFile

Question

I know this sounds a little silly, but is there any way to prove this on Windows:

• fopen function calls winapi function CreateFile (or CreateFileEx)
• fread the function calls the winapi ReadFile (or ReadFileEx) function

If there is a more general way to determine how some C library functions call winapi functions, I am also happy with this answer.

We have a debate, and I'm interested in some evidence. I'm interested in Visual C.

Answer 1

Visual C comes with source code for the C runtime library. Will this settle?

Answer 2

( kernel32.dll). , , fopen. , fopen CreateFile.