C / C++ / MFC

1-Oct-07 3:03

Hi,

one third party DLL that I'm using to configurate and test the connection to a plc is writing some datas into the registry in HKEY_LOCAL_MACHINE\SOFTWARE\FOLDER_1\Folder2\Device0

I want to code the deletion of FOLDER_1, Folder2, Device0 and all the values that are at the end of the path, but only when they exists. I have though using this code (Windows XP, VC++ 6.0), but before calling any code about the registry I want to be sure that it is not dangerous for the registry itselfs (it's my first try).

BOOL bDeleted = FALSE;
CRegKey rkMyRegKey;

if (rkMyRegKey.Open (HKEY_LOCAL_MACHINE, "SOFTWARE\\FOLDER_1") == ERROR_SUCCESS)
{   if (rkMyRegKey.RecurseDeleteKey ("SOFTWARE\\FOLDER_1") == ERROR_SUCCESS)
    {   rkMyRegKey.Close ();
        return MY_MSG_OK;
    }
    //To be sure it is closed although not deleted
    rkMyRegKey.Close ();
}

return MY_MSG_ERROR;

would it work?

Greetings.

--------
M.D.V.

If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?

Help me to understand what I'm saying, and I'll explain it better to you

Wink | ;)

David Crow1-Oct-07 3:10

1-Oct-07 3:10

If you are that unsure, why not create a few dummy keys and values, and work on deleting those instead?

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Nelek1-Oct-07 3:23

1-Oct-07 3:23

To delete those keys is not a problem (im deleting them manually to check another things, like configuration through a *.ini), the dll will always create them, every time I run it.

My problem is that I prefer not to play with the registry just making "dummy" tries and errors, and less in a computer that is not mine.

what I am unsure about is if my code is dangerous for the registry or not.

Because of that I have asked if the code would make a safelly deletion.

David Crow1-Oct-07 3:25

1-Oct-07 3:25

Nelek wrote:
what I am unsure about is if my code is dangerous for the registry or not.

Because of that I have asked if the code would make a safelly deletion.

Try it and see.

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Nelek1-Oct-07 3:45

1-Oct-07 3:45

No errors by compiling but either no results, it opens but doesn't deletes. Any tip?

David Crow1-Oct-07 4:10

1-Oct-07 4:10

Have you stepped through the code to see which method is failing? Why have you not tried:

if (rkMyRegKey.Open(HKEY_LOCAL_MACHINE, "SOFTWARE") == ERROR_SUCCESS)
{
    if (rkMyRegKey.RecurseDeleteKey("FOLDER_1") == ERROR_SUCCESS)
        ...
}

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Nelek1-Oct-07 4:29

1-Oct-07 4:29

Because I was searching info before doing more tests. I was now reading:

A set of template classes for working with the registry
By Daniel Andersson

and

Another registry class
By SteveKing

But I will try it.

Seeing what you have writen I guess that I was uncorrectly using the functions. I thought I had to give the path till the last point you don't want to be deleted. And it just is to open to that point and use the delete with the first folder that has to be erased.

I'm checking it in a minute

Now works

Nelek1-Oct-07 4:43

Re: Renaming my workspace

1-Oct-07 4:43

Yes, It was because of what I said in the previous message.

I was trying to open the FOLDER_1 to ensure the existance before deleting but if it doesn't exist, the RecurseDeleteKey will make nothing and return a 2 (LONG ERROR_FILE_NOT_FOUND), before I was having 5 (ERROR_ACCESS_DENIED) because I was using a wrong relative path.

Thanks david

Renaming my workspace

neha.agarwal271-Oct-07 2:02

neha.agarwal27

1-Oct-07 2:02

Hello all,

I have made a application by name abc now i want to make it as xyz. How can i rename my workplace.

Can anybody help me in this.

Thanks in advance

toxcct1-Oct-07 2:06

toxcct

1-Oct-07 2:06

why not simply renaming the output file abc.exe into xyz.exe ?
you can have this into the project settings...

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Re: Renaming my workspace

Hamid_RT1-Oct-07 19:46

Hamid_RT

1-Oct-07 19:46

See Visual Studio project renamer [^].

C++ Libraries Reference

Mustafa Ismail Mustafa1-Oct-07 1:44

Mustafa Ismail Mustafa

1-Oct-07 1:44

Guys,

My kid brother has asked me to suggest a website that has a decent reference of the standard libraries and their contents that are available to C++.

TBH I could use it myself!

Anyone know of one?

TIA

"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook

"There is no wealth like knowledge, no poverty like ignorance." Ali ibn Abi Talib

Re: C++ Libraries Reference

toxcct1-Oct-07 1:48

toxcct

1-Oct-07 1:48

the best I know for STL is http://www.sgi.com/tech/stl/[^]...

but guess what Google Returns when you search for "STL C++" ?

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Re: C++ Libraries Reference

Mustafa Ismail Mustafa1-Oct-07 1:55

Mustafa Ismail Mustafa

1-Oct-07 1:55

y'know, sometimes I could just slap myself...

Re: C++ Libraries Reference

Nemanja Trifunovic1-Oct-07 4:02

Nemanja Trifunovic

1-Oct-07 4:02

C/C++ Reference[^]

Programming Blog
utf8-cpp

Cant get Time of Event Log for year 2038 onwards

Abhijeet Rajput1-Oct-07 1:42

Abhijeet Rajput

1-Oct-07 1:42

Hello,
while reading event Log records, I need to read generated time of Event Log.
If Log Records are generated with Date before than 2038 year then those are getting read properly but for the records having date later than 2038 are not getting read. I am using CTime and Highest Range of CTime is 2038 only.
Use of COleDateTime is not possible.
Please suggest if there is any solution for this.

Abhijeet

Re: Cant get Time of Event Log for year 2038 onwards

krmed1-Oct-07 2:03

krmed

1-Oct-07 2:03

CTime used to be limited as you mentioned - 2038, however (at least with VS2005) that has been modified and now allows dates from 1/1/1970 to 12/31/3000. See MSDN[^] for more info.

Sounds like you need to upgrade since you say you can't use COleDateTime.

Hope that helps.

Karl - WK5M
PP-ASEL-IA (N43CS)
PGP Key: 0xDB02E193
PGP Key Fingerprint: 8F06 5A2E 2735 892B 821C 871A 0411 94EA DB02 E193

Re: Cant get Time of Event Log for year 2038 onwards

David Crow1-Oct-07 3:12