C / C++ / MFC

V.G22-Jan-05 2:28

V.G

22-Jan-05 2:28

hi!! sorry for being so late.. actually i'm just a beginer..but the project has to be good.. can u suggest any good project for beginners...we r a teamof five.

David Crow22-Jan-05 13:03

David Crow

22-Jan-05 13:03

How can you be a beginner if you are doing your Msc (I assume this is a computer-related Master's degree)?

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

Anonymous24-Jan-05 2:46

Anonymous

24-Jan-05 2:46

Yes, I'm doing MSC... but am new to the subject i.e Programming in windows

David Crow24-Jan-05 3:07

David Crow

24-Jan-05 3:07

What about my suggestion here?

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

act_x5-Jan-05 3:44

act_x

5-Jan-05 3:44

Great that you have embarked on using MFC to do your project . But the fact is there has to be a core technology that MFC can revolve around . you could use MFC almost anywhere there is any engineering / business

here is a quick list that i could think about
Database related
Networking related
OS related
Hardware related - serial port communication
testing related

The sky is the limit

Engineering is the effort !

Checking if a file has been opened by any process and remains open

David Crow5-Jan-05 5:35

David Crow

5-Jan-05 5:35

Have you asked for input from your project/thesis advisor?

In any case, read this article, especially the paragraphs from jury member Richard Morris.

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

Jose M Castellanos5-Jan-05 0:33

Jose M Castellanos

5-Jan-05 0:33

Hello:

I am developing a library that must automatically detect new files in a certain directory and then process them.

If a user creates a file (such a text one) using any program in the directory and he edits and saves the file without closing, no action has to be taken. The action has to wait until we are sure the file edition is complete and file is closed.

How can I check wether the file has been opened by any process in the local machine or even remotely?

Is it possible to get a notification when the file is closed by the user?

I should work out the problem using no MFCs.

Any help will be really welcomed. Poke tongue | ;-P

Jose M.

Just re-entering programming world after a long break.

Re: Checking if a file has been opened by any process and remains open

Rajesh match5-Jan-05 0:47

Rajesh match

5-Jan-05 0:47

look for CFile::shareExclusive in MSDN

regards
Rajesh

Re: Checking if a file has been opened by any process and remains open

cmk5-Jan-05 9:38

cmk

5-Jan-05 9:38

http://www.codeproject.com/file/FileSpyArticle.asp[^]

...cmk

Save the whales - collect the whole set

Active X Kids!!

rw1044-Jan-05 23:06

rw104

4-Jan-05 23:06

Can I manually insert an activeX into to an existing activeX?

Prevent Expand in CTreeCtrl

anderslundsgard4-Jan-05 22:35

anderslundsgard

4-Jan-05 22:35

I’m about to implement multi-select in my derived CTreeCtrl class. I have problem with the default expand behaviour of the CTreeCtrl.

1. I only want the tree to expand when left clicking (not right clicking) it
2. I only want the tree to expand when clicking the plus-sign (not the item text)

All tips are welcomed!!

_____________________________

...and justice for all

APe

Re: Prevent Expand in CTreeCtrl

Martin Koorts5-Jan-05 1:29

Martin Koorts

5-Jan-05 1:29

Hi
In order to help, I've built a CTreeView-derived view to play with and have found;
Right-clicking doesn't expand tree items in my test app (??) - might be the version of common controls I'm using, but more importantly, I've overridden the OnLButtonDown member in the view, like so;

void CTreeTestView::OnLButtonDown(UINT nFlags, CPoint pnt)
{
UINT uFlags = 0;
HTREEITEM hSelectedItem = GetTreeCtrl().HitTest(pnt, &uFlags);

switch (uFlags)
{
case TVHT_ONITEMLABEL:
//mk GetTreeCtrl().SelectItem(hSelectedItem);
return;
}

_RPT3(_CRT_WARN, "## LButtonDown (x=%d, y=%d) returns %x\n", pnt.x, pnt.y, uFlags);
CTreeView::OnLButtonDown(nFlags, pnt);
}

which then gobbles the click whenever you click on the label, and everything else, like clicking on the expand button (plus/minus sign) works in the default way.

The bottom-line;
you can override the mouse clicks for your tree control in the standard way (WM_LBUTTONDOWN, et al message handlers) - where you can then use the CTreeCtrl::HitTest member to determine on which part of the tree the click occured, and then take the appropriate action.
In this fashion, you might even be able to customise right-clicks, etc.

HTH
Martin

PS: You might find that since the tree control's behaviour is more for black-box use than customization, you'll probably have to re-implement a lot of the basics over again - you'll have to see how much the effort's worth it.

Re: Prevent Expand in CTreeCtrl

anderslundsgard5-Jan-05 2:26

anderslundsgard

5-Jan-05 2:26

What to say...

- A PREFECT ANSWER!!

Thanks!!

_____________________________

...and justice for all

APe

displaying chinese characters

Syasya Mortensen4-Jan-05 22:26

4-Jan-05 22:26

I am doing a program whereby Im creating an application that extracts information from MS Access Database and displays it out in Visual C++6.
I am using the ODBC Database method.
What I am trying to do is to input and also display Chinese characters in VC++6. The information in my MS Access Database are also in Chinese.
So far what I have only comes out as "???" (question marks!) WTF | :WTF:

Yes I have installed MFC unicode libraries
I have also defined _UNICODE.
I hope the kind and clever people here would sincerely help me. Dead | X|

Thanks so much. Blush | :O

RChin4-Jan-05 23:46

RChin

4-Jan-05 23:46

This might seem silly, but have you made sure that the font that you are using to display your text supports Chinese UNICODE characters?
Otherwise you will get those "???" marks you have mentioned.
I find Tahoma or Arial Unicode are safe fonts when it comes to this respect.

I Dream of Absolute Zero

Syasya Mortensen5-Jan-05 21:35

5-Jan-05 21:35

erm how do i ensure that my font is Unicode enabled?
I also forgot to mention that my code is self-generated by the VC++ and I didnt type in a single code just some minor additions and adjustments that i followed from a book but those came out fine in English.
I was wondering if my problem had something to do with the codes.
Do i have to change anything?

Aamir Butt5-Jan-05 18:09

5-Jan-05 18:09

I guess you have to Install support for East Asian Languages. This can be done from Control Panel->Regional Languages and Options

Hopefully this will fix it.

Still Alone in this beautiful world Frown | :(

Syasya Mortensen5-Jan-05 21:42

5-Jan-05 21:42

Hi. I did install those East Asian languages that you mentioned but to no avail.
I also forgot to mention that my code is self-generated by the VC++ and I didnt type in a single code just some minor additions and adjustments that i followed from a book but those came out fine in English.
I was wondering if my problem had something to do with the codes.
Do i have to change anything?
Thanks in advance.

Aamir Butt5-Jan-05 22:39

5-Jan-05 22:39

Syasya Mortensen wrote:
my code is self-generated by the VC++

In that case, I guess your code is not unicode enabled. To do this, go to project settings and in General tab, change Character set to Unicode Character set. You will have to rebuild your project after doing this change.

BTW, to confirm that your support for chinese is installed, try opening some chinese website in your browser OR you said that your access database contains chinese strings. Try to open the DB in access and see if it displays chinese characters.. If it displays chinese OK, then try the above-mentioned.

Still Alone in this beautiful world Frown | :(

Syasya Mortensen6-Jan-05 13:52

6-Jan-05 13:52

Hmm sorry to be sounding so silly, but under my project->settings->General tab erm there is no options or wherever that i can change Character set to Unicode set. There doesnt seem to be any options for this.

Yup, my chinese characters do appear in my database and also in chinese websites so i guess theres no problem there.
I still seriously think its something to do with the codes?
Gaaah...!

Aamir Butt6-Jan-05 17:09

6-Jan-05 17:09

Which version of Visual C are u using. I have got Visual C 7.1 (Visual studio 2003) and these settings are available there as I said. And I have checked it for Visual C 7.0 as well. It's available at a similar place there as well.

Still Alone in this beautiful world Frown | :(

Syasya Mortensen7-Jan-05 4:14

7-Jan-05 4:14

Oh. Im using VC++ 6.

Syasya Mortensen9-Jan-05 18:41

9-Jan-05 18:41

Is Visual Studio 7.0 Visual Studio C++.NET?
Are the compiler options there?
Under the Language property page?
Thanks.

Aamir Butt10-Jan-05 17:31

10-Jan-05 17:31

OK now i got the configuration for both VC 7 and VC 6.

For VC 6

Go to Project Settings . C++. Change category to Preprocessor and add _UNICODE in Preprocessor definitions. Then go to Link. Change Category to Output and put wWinmainCRTStartup as Entry-point symbol.

For VC7 or VC.NET
Go to Project Properties. In General, change Character set to "Use Unicode Character Set". In C/C++ -> Preprocessor Definitions, Add _UNICODE. In Linker->Advanced. In Entry point, put wWinMainCRTStartup as Entry point.

I Hope now this works for both VC6 and VC7.

Regards

Still Alone in this beautiful world Frown | :(

Syasya Mortensen11-Jan-05 19:50