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Q2. [in] parameter must be never released in the called function.
With best wishes,
Vita
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If you are using Norton Anti-Virus 2001/2002, and your operating system is Windows 2000 or Windows Xp, and your programming IDE is Visual C++ 6.0, please be warned that you might lose your hard work with a mysterious reason.
Usually, if you are using above listed products together, you will frequently get this error message while programming, "Cannot save file, the file is being used by other applications.".
It is OK if it happens when you are on the code editor, it can be solved by simply save the file again, so it dosen't hurt much, although annoying.
But, a big BUT here, if at the exact moment you are using class wizard, one of your files will be permanently deleted by Norton Anti-Virus from your disk, it could be either the .h or .cpp of the class you were manipulating using class wizard, usually the .cpp. That deletion is permanent, there is absolutely no way to recover that file from disk. If you close Visual C++ now, you lose that file forever, it could be a project that you've been working on for weeks.
Solutions? Well, there are a few, from my personal experiences:
1, Once that happens, calm down. Firstly check on hard disk see if the file is deleted, if it is, immediately use your Visual C++'s "File view" feature and find that file in file list, that is possible because Visual C++ keeps files in memory event after they're deleted from disk, unless it requires the memory space for something else. If the file still exists in "file view", open it, copy all source code to clip-board, create a new file on disk and paste the contents from clip-board, congratulations, it's back.
2, Do not use Norton Anti-Virus on Windows 2000 or Windows Xp. The bug does not exist on Windows 98/ME.
3, Well, this is my personal opinion and CodeProject.com does not hold and responsibility for this, simply stay away from Norton Anti-Virus. And no, turning "Auto protect" off does NOT help.
Hope this info helps.
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don't scare me, i don't use Norton.
don't scare urself, u made a mistake obviously:
if a file is deleted from disk, u can't recorver it by 'file view'. info for 'file view' is in file '*.dsp', not in memory, and only with file name, not file content.
don't argue with me now: delete a file manuely then try recorver it ...
includeh10
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includeh10 wrote:
i don't use Norton
then you don't know what you're talking about, in this case.
this exact situation has happened to me a number of times. NAV and ClassWizard / ATL Wizard / etc will sometimes collide and the files that were being edited by VC get truncated to zero bytes. luckily, i've always been able to find the temp files in my system temp folder that VC was using for my source files. i'm not 100% sure i'll always be so lucky. yes, i've told NAV to ignore .CPP and .H files.
i am constantly getting that "current file is being used by another application" message. like, 1/3 of every time i have to build.
NAV + VC + 2K is risky.
-c
To explain Donald Knuth's relevance to computing is like explaining Paul's relevance to the Catholic Church. He isn't God, he isn't the Son of God, but he was sent by God to explain God to the masses.
/. #3848917
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I wish you have tested what you said... Anyway, open a project, open a source file use file view(so make sure that file is loaded into memory by VC++), then delete that file from disk manually, now back to file view and see that file and all its contents are still there, you can copy them to clipboard.
Anyway, if you never encountered the problem then good, really good because it's not a good thing to lose a source file that you've spent hours on. But I know it's not only me that had the problem so I just wanted to warn others who could potentially lose their works.
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if you never encountered the problem then good, really good because it's not a good thing to lose a source file that you've spent hours on. But I know it's not only me that had the problem so I just wanted to warn others who could potentially lose their works.
thankx a lot....now we can notice the situaion even i dunno use the same config...oherwise all of the peoples here waste their time and fill up the Codeproject discussionboards with that problem...here someone try to argue with u..but they dunno lok on the actual problem...if it really happen try to findout some solutions...PLEASE dont fight here...
Renjith-CPian.
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I am running win2000, Norton AV 8.0 (2002) and C++ 6.0 and never had a problem like that. Maybe it is a different version of AV? Or a WinXP issue? That does sound very serious, I hope Norton or MS addresses that. 
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YES, this is the exact problem i've been having for years and it deleted one of the CPP files of my project! annoying, but eh, oh well... i'd probably never finish it anyway
so i switched to .NET and so far I haven't gotten that error 
- Roman -
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I wonder if any of what you have described have happened to Michael Dunn while we was working for them 
Best regards,
Alexandru Savescu
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Yeah. I use Norton 2003, XPPro, and VC6, and I get the first problem (the cannot save dialog) all the time.
Do you, by any chance, know how to stop that error, short of uninstalling Norton?
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i downloaded SCBDemo3, a sample or library of dockable window.
in my program, i modified it, but i meet unknown trouble with it. please help ....
first, create a sub-class of the dockable window (called XDock).
then add a CView's sub-class (called XView) as its content (or RUNTIME CLASS, or child), then add 3 CTreeCtrl's sub-class (called XTree) as children of XView.
then add some tree items on WM_CREATE message of XTree(OnCreate) to each tree.
------------ so far so good. but problem comes now:
i can not add a tree item out of XDock !
code is simplified as:
class XView:public CView
{.........
CTreeCtrl tree0,tree1,tree2;
.........
};
XDock dock;
dock.Create(this,RUNTIME_CLASS(XView),....
//tree0,1,2 are created inside XView
//add tree items inside tree0, OK
problem is add tree item out of dock as following:
XView*pv=(XView*)dock.GetWindow(GW_CHILD);
pv->tree0.AddTreeItem("some name");//a. retuen 0.
BOOL XTree::AddTreeItem(CString cs)
{
HTREEITEM hNew=InsertItem(........);//b. hNew is 0
......
};
note: as i said, if inside XTree, it is OK
BOOL XTree::OnCreate(...)
{..............
AddTreeItem("it is OK here");
}
i checked both a. and b. are called, why calling inside XTree is OK, outside is failed?
i'm waiting for u and prepare more hints as required.
thx
includeh10
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My Project:
To prepare a master data file from numerous text files (3,00 to 8,000).
Each file has a unique name.
The first line of each file is NOT a header file.
- The first line of each file needs to be concantonated to each of the following lines of the respective file.
- Then the first line needs to be deleted
Then the file needs to be appended to a master file.
I want to auto mate this process to automatically perform this to all the files selected ( all the selected file will be in one directory)
Okay, I started this project in MS ACCESS but I can only process one file at a time. So I thought I would dabble with trying to figure this out in a programming language. I am vaugley familiar with VB and intermediate (or a bit less) using BASIC. Any help would be appreciated.
Fred
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This is a snap using iostreams in C++, but based on what you've said, I'm not sure that there is any starting point from which to discuss it. Have you used C++ before ? If not, why are you posting to a C++ forum ?
Christian
come on all you MS suckups, defend your sugar-daddy now. - Chris Losinger - 11/07/2002
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I have the following problem. I want to use WinNT functions in a program that should work on Win9x too. I have a single .exe. I check the OS version before calling the NT only functions but when I try to run the program under Win9x it get an error that the .exe is linked to a missing export in user32.dll.
I am relatively new to Windows and this is the first program I'm trying to do Win9x compatable.
Do you have any idea what do I miss?
With the new unicows.dll I should even be able to write a single UNICODE application for Win9x and WinNT.
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You need to delay load the dll that has the function you only have available in NT, otherwise it will not run, even if it's not getting called in 9x. I forget how, but it's in the MSDN.
Christian
come on all you MS suckups, defend your sugar-daddy now. - Chris Losinger - 11/07/2002
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Christian Graus wrote:
You need to delay load the dll
... or call GetProcAddress for the "extended" functions.
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In the MSVC documentation, SetActivateWindow() activates a window - however this must be associated with the calling thread's message queue. Is there a way that I can pass control from my program to another app's main window knowing it's handle ?? (I have got the handle using EnumWindows() and checking the window title). Appreciate any help
Doug
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ummmm this might be dumb but cant you send a mouse click message to its message queue ... that would make the whole thing happen as if the user clicked it
just a thought
"... and so i said to him ... if it don't dance (or code) and you can't eat it either f**k it or throw it away"
sonork: 100.18128 8028finder.com
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doh!
i knew there would be an easy way
i was too lazy to squizz thru the msdn stuff
sorry
"... and so i said to him ... if it don't dance (or code) and you can't eat it either f**k it or throw it away"
sonork: 100.18128 8028finder.com
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lauren wrote:
i knew there would be an easy way
Sadly under 2K and XP, it won't actually make it foreground
It'll just flash the taskbar icon thrice. Unless you change this setting using Powertoys. Something about preventing apps from stealing focus.
Nish
Author of the romantic comedy
Summer Love and Some more Cricket [New Win]
Review by Shog9
Click here for review[NW]
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Before calling SetActiveWindow, use the AttachThreadInput function to attach the input states of the calling thread and the thread with the desired window:
DWORD tidThis,tidOther;
tidThis=GetCurrentThreadId();
tidOther=GetWindowThreadProcessId(hwnd,NULL);
if(tidThis!=tidOther)
AttachThreadInput(tidThis,tidOther,TRUE);
SetActiveWindow(hwnd);
if(tidThis!=tidOther)
AttachThreadInput(tidThis,tidOther,FALSE);
Peter O.
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Peter, that code works a treat !! Many thanks for your help - I've learnt something ! Thanks also to all the others who contributed to this thread. 
Doug
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Hi,
I'm a complete newcomer to Visual C++, and have just downloaded the MFCGridCtrl component from this site. My question is simple - I've included the files into my project in VC++6, but how do I place an instance of the MFCGridCtrl onto my dialog? Please explain how to do this step-by-step, assuming I have just downloaded the source code files...
Thanks a lot for any help on such a dumb question,
Jonathan.
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Did you get the demo program? If not, download it too, then look to see how it was implemented. You might also compile the demo for debug then step through some of the demo program to see how it works.
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