Solved

FILE* Pointer frol CFile object?

Posted on 2003-11-21
2
306 Views
Last Modified: 2013-11-20
I have integrated some external code in my project that wants me to write my data into a CFile (CSharedFile to be exact). But since my data model requires a FILE* pointer to for its IO-operations I wondered if there's any way to get a FILE* pointer from the CFile object.

I think that the CFile class is simply a wrapper for the fopen, fwrite, fread, etc. functions. Right? So there should be a way.

I tried to get the file handle (with the HANDLE operator of CFile) and cast it into FILE*, but the handle I got was invalid (0xffffffff).

Grateful for any ideas.
0
Comment
Question by:hirnsieb
2 Comments
 
LVL 44

Accepted Solution

by:
Karl Heinz Kremer earned 125 total points
ID: 9799556
I think what you want is the m_hFile member variable instead of the HANDLE operator. Unfortunately, this is still not useable like a FILE pointer, but must be converted to one first.

See the page at http://www.flounder.com/handles.htm for some background information and code snippets.
0
 
LVL 1

Author Comment

by:hirnsieb
ID: 9800290
the link you provided was very useful, although i now know that what i wanted to do is impossible. so i altered my code. thanks anyway!
0

Featured Post

Live: Real-Time Solutions, Start Here

Receive instant 1:1 support from technology experts, using our real-time conversation and whiteboard interface. Your first 5 minutes are always free.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Running shell command from Access 3 72
iSeries FTP Exit Program 8 135
Add content to output file 4 63
unix example issues 18 89
Exception Handling is in the core of any application that is able to dignify its name. In this article, I'll guide you through the process of writing a DRY (Don't Repeat Yourself) Exception Handling mechanism, using Aspect Oriented Programming.
Have you tried to learn about Unicode, UTF-8, and multibyte text encoding and all the articles are just too "academic" or too technical? This article aims to make the whole topic easy for just about anyone to understand.
This video will show you how to get GIT to work in Eclipse.   It will walk you through how to install the EGit plugin in eclipse and how to checkout an existing repository.
Finds all prime numbers in a range requested and places them in a public primes() array. I've demostrated a template size of 30 (2 * 3 * 5) but larger templates can be built such 210  (2 * 3 * 5 * 7) or 2310  (2 * 3 * 5 * 7 * 11). The larger templa‚Ķ

786 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question