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troubleshooting Question

[C++] How do I know FILE_FLAG_OVERLAPPED has been set in the file handle ?

Avatar of Nobuo Miwa
Nobuo Miwa asked on
C++Visual C++.NETMicrosoft Development
2 Comments1 Solution1348 ViewsLast Modified:
Hello Experts,

I want to know FILE_FLAG_OVERLAPPED flag has been set in the file handle.

I got a file handle from DuplicateHandle() and that is HANDLE_TYPE_FILE and
my target file name.
I want to read that file by using duplicated handle, but I don't know
FILE_FLAG_OVERLAPPED flag has been set or not into that file handle.

If I know that flag information, I can call ReadFile() with/without OVERLAPPED
structure pointer.

Any hints welcome.

Windows 7 32bit

Nobuo Miwa
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