C / C++ / MFC

David Crow13-Apr-09 9:00

David Crow

13-Apr-09 9:00

At the file system level, a file does not get moved when it is deleted. The file system simply marks its space as available.

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

recmisi13-Apr-09 16:33

recmisi

13-Apr-09 16:33

Thanks for reply
How can i get it from Hard disk?Can you give me API?

john563213-Apr-09 19:45

john5632

13-Apr-09 19:45

No API is available you have to do it to understand File System.

How to cancel during serialization on CDocument

Divyang Mithaiwala13-Apr-09 20:58

Divyang Mithaiwala

13-Apr-09 20:58

Here[^] you find some open source project related to File recovery.

Do not trust a computer...
Always check what computer is doing

regards,
Divyang Mithaiwala
Software Engineer

Joseph Marzbani13-Apr-09 5:21

Joseph Marzbani

13-Apr-09 5:21

I have written CDocument derived class's Serialize method to check the version on the archive and throw an exception if it doesn't match. After throwing the exception, the Window title still shows the file name that had an error.

How do I cancel serialization completely and go back to the previous file that was open?

Thank you masters!

How to cancel CDocument::Serialaize()?

Joseph Marzbani13-Apr-09 5:17

Joseph Marzbani

13-Apr-09 5:17

I used the following method to cancel the serializing process:

void CMyAppDoc::Serilize(CArchive &ar)
{
    if (// Something goes wrong)
    {
        ar.abort();
        return;
    }
}

But it always cause an exception. Any idea?

Thank you masters!

Question on I/O stream and for loop

Mohamed_Khalil13-Apr-09 2:02

Mohamed_Khalil

13-Apr-09 2:02

Hi guz ..

in my project im reading input file from .txt

the file contains has two rows

first row contains A,B,C ans so on, in UPPER mode

second row contains a,b,c ,,, bla bal bla

for exmaple the user input A the program will out put a as well

how i can math this toghther ??
im using two for loops one to hold 1st row
and the other for loop to hold the 2nd row

i tried to output the output was same as format of .txt file

and my question how to input for example A the output will be a? Confused | :confused:

Re: Question on I/O stream and for loop

Rajesh R Subramanian13-Apr-09 4:50

Re: Question on I/O stream and for loop

13-Apr-09 4:50

As of now, I know that you have a file and a program. If you can rephrase your query to something that we can understand, well, we will reply.

It is a crappy thing, but it's life -^ Carlo Pallini

David Crow13-Apr-09 5:08

David Crow

13-Apr-09 5:08

dr.nokia wrote:
in my project im reading input file from .txt

the file contains has two rows

first row contains A,B,C ans so on, in UPPER mode

Do you have something like:

std::ifstream fin;
fin.open("Letters.txt");
 
std::string strLine;
std::getline(fin, strLine);
std::replace(strLine.begin(), strLine.end(), ',', ' ');
 
std::stringstream ss(strLine);
std::vector<char> vecUpper;
std::copy(std::istream_iterator<char>(ss), std::istream_iterator<char>(), std::back_inserter(vecUpper));

Calling a VS2008 DLL from VS 6.0 dll

rana ray13-Apr-09 0:43

rana ray

13-Apr-09 0:43

Hi,

Is it possible to call a visual studio 2008 dll from VS6.0 dll? I am using VC++.

If you guys have some information regarding this, please let me know.

regards,
Rana

_AnsHUMAN_ 13-Apr-09 1:10

13-Apr-09 1:10

Yes.
It shouldn't be a problem unless you are mixing Managed and Native terminologies.

You need to google first, if you have "It's urgent please" mentioned in your question.
Wink | ;-)

_AnShUmAn_

Rajesh R Subramanian13-Apr-09 1:26

13-Apr-09 1:26

_AnsHUMAN_ wrote:
It shouldn't be a problem unless you are mixing Managed and Native terminologies.

What is the problem in mixing managed and native terminologies? Confused | :confused:

Especially given the context of this thread, what else other than using a DLL (COM Interoperability) can be a sensible way to consume something written in managed code, if I am on the native code side?

It is a crappy thing, but it's life -^ Carlo Pallini

_AnsHUMAN_ 13-Apr-09 1:34

13-Apr-09 1:34

INTEROPERABILITY, nothing else. My guess was that the OP was developing the dll in the managed environment.

You need to google first, if you have "It's urgent please" mentioned in your question.
Wink | ;-)

_AnShUmAn_

Rajesh R Subramanian13-Apr-09 1:13

13-Apr-09 1:13

There is nothing like a VS 2008 DLL and a VS 6.0 DLL. Once built, a DLL is just a DLL with no regards to the languages/tools used to build it.[^]

It is a crappy thing, but it's life -^ Carlo Pallini

Joe Woodbury13-Apr-09 11:58

Joe Woodbury

13-Apr-09 11:58

Well yes and no. If the VS 2008 DLL used dynamically linked MFC, you will likely have problems. If the VS 2008 DLL dynamically linked to the CRT, I'm not sure what the behavior is if you allocate memory in one and free it in the other.

Anyone who thinks he has a better idea of what's good for people than people do is a swine.
- P.J. O'Rourke

Rajesh R Subramanian13-Apr-09 21:15

13-Apr-09 21:15

It has nothing to do with the 'DLL' terminology. If I link dynamically to a third party library from a DLL written with VS6 environment, that would depend on the third party library. This does not mean that a DLL written in VS6 will ALWAYS depend on that third party library.

In other words, you are kinda marrying a DLL with what it is linking to. I was pointing out that a DLL is just well, a DLL.

It is a crappy thing, but it's life -^ Carlo Pallini

BinName13-Apr-09 16:29

BinName

13-Apr-09 16:29

There are a lot of articles in this website explain the technical of P/Invoke and inter operation between VC and .NET.

Run c++

yesu prakash13-Apr-09 0:39

yesu prakash

13-Apr-09 0:39

Hi,
I am a c# developer, i got an c++ application source code which i need to incorprate with my current application in c#.I dont know c++ so i am not understanding the source code in c++.
I have turbo c++ in my system. I am very much confused in c++, How can i start developing application in c++, I need to study the source code in c++ which i got and i need to develop that in c# or add the c++ in to my current application.
My aim is to throughly understand the c++ source code which i got.
Can any body help me?

Thankyou
YPKI

Rajesh R Subramanian13-Apr-09 1:11

13-Apr-09 1:11

This forum is for asking specific questions on C++/MFC. If you don't know anything about C++, the ideal way to learn C++ would be to buy a C++ book and read it.

Thinking in C++[^] is an excellent book and the link takes you to a page where you can legally download an electronic copy (both part 1 and part 2) of it for free.

It is a crappy thing, but it's life -^ Carlo Pallini

_AnsHUMAN_ 13-Apr-09 1:13

13-Apr-09 1:13

It would be of great help if you can get the architecture of the application, and the sequence diagrams for your study. This would boost your understanding and decrease the time you would invest in understanding C++ API's which you are not going to use.

You need to google first, if you have "It's urgent please" mentioned in your question.
Wink | ;-)

_AnShUmAn_

dybs13-Apr-09 2:27

dybs

13-Apr-09 2:27

Assuming such documentation exists, of course Poke tongue | ;-P

Dybs

two dialog boxes in single application

Hamid_RT13-Apr-09 3:04

Hamid_RT

13-Apr-09 3:04

www.cplusplucs.com[^] is helpful for you.

Of one Essence is the human race
thus has Creation put the base
One Limb impacted is sufficient
For all Others to feel the Mace
(Saadi )

Rakesh512-Apr-09 23:51

Rakesh5

12-Apr-09 23:51

i want to connect two dialog boxes in a single project..

for eg., first dialog box will be asking userid and password, upon giving the correct credentials the second dialog box has to be opened.

can anyone hlp me out???

thanks,

rakesh.

Re: two dialog boxes in single application

Rajesh R Subramanian12-Apr-09 23:53

Re: two dialog boxes in single application

12-Apr-09 23:53

Have a look at CDialog::DoModal()[^]

It is a crappy thing, but it's life -^ Carlo Pallini

_AnsHUMAN_ 13-Apr-09 0:01