How do I get the file HANDLE from the fopen FILE structure?

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Use _fileno followed by _get_osfhandle. Don’t forget to _close it when you are done.

EDIT: it’s not clear to me that _get_osfhandle is supported on WinCE. However the docs for WinCE _fileno say it returns a “file handle” rather than “descriptor”. YMMV but this suggests that you can maybe just use _fileno return value directly as a handle on WinCE.

EDIT: #2 That theory is supported by this person’s experience.

“If you take a look at the header files that I posted to the list on Jan 29
you can see how I handled the file creation/handle problem. I didn’t have
to replace all FILE* items with HANDLEs. See the following snippet from
fileio.cpp:

#ifndef q4_WCE

  FlushFileBuffers((HANDLE) _get_osfhandle(_fileno(_file)));
  HANDLE h = ::CreateFileMapping((HANDLE)
_get_osfhandle(_fileno(_file)),
                        0, PAGE_READONLY, 0, len, 0);
#else

  FlushFileBuffers((HANDLE) _fileno(_file));
  HANDLE h = ::CreateFileMapping((HANDLE) _fileno(_file),
                    0, PAGE_READONLY, 0, len, 0);
#endif //q4_WCE

It turns out that _fileno returns a handle. You just have to cast it.”

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