Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

Troubleshooting
Research
Professional Opinions
Ask a Question
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE

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
C++Builder

Nobuo Miwa
ASKER CERTIFIED SOLUTION
Avatar of jkr
Commented:
This problem has been solved!
Unlock 1 Answer and 2 Comments.
See Answers