Access violation

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January 22nd, 2007, 06:14 AM
samallis

Access violation

When I debug my program, it opens fine, but then it comes out with a debug message:

Unhandled exeption in Environment.exe: 0xC0000005: Access violation.

It stops at the [break] - [Disassembly]:
(the yellow arrow is on the top)

Code:

CCCCCCCC ??? CCCCCCCD ??? CCCCCCCE ??? CCCCCCCF ??? CCCCCCD0 ??? CCCCCCD1 ??? CCCCCCD2 ??? CCCCCCD3 ??? CCCCCCD4 ???

In the Call Stack:
(the yellow arrow is on the top)

Code:

cccccccc() NTDLL! 77fbb272() NTDLL! 77facc28() NTDLL! 77f91bc6() NTDLL! 77facc28() NTDLL! 77f91bc6() NTDLL! 77facc28() NTDLL! 77f91bc6() NTDLL! 77facc28() NTDLL! 77f91bc6() NTDLL! 77facc28()

What is the problem? Can anyone help me? Thanks.
January 22nd, 2007, 06:28 AM
Gunaamirthavelu

Re: Access violation

hi

can u post ur sample code...? ten only we can help u...
January 22nd, 2007, 06:32 AM
samallis

Re: Access violation

I debug it putting my cursor on one of the function, then I press F10 to go into it. It actually first stops at [run] - [Dissembly]:

Code:

77E3C1D5 call 77E3C043 77E3C1DA leave 77E3C1DB ret 4 77E3C1DE nop 77E3C1DF nop 77E3C1E0 nop 77E3C1E1 nop

and in the Call Stack:

Code:

USER32! 77e3c1d5() NTDLL! 77f91baf() CTactileEnvironmentApp::InitInstance() line 127 AfxWinMain(HINSTANCE__ * 0x00400000, HINSTANCE__ * 0x00000000, char * 0x001335e1, int 1) line 39 + 11 bytes WinMain(HINSTANCE__ * 0x00400000, HINSTANCE__ * 0x00000000, char * 0x001335e1, int 1) line 30 WinMainCRTStartup() line 330 + 54 bytes KERNEL32! 7c5989a5()
January 22nd, 2007, 06:37 AM
VictorN

Re: Access violation

Please, post the code snippet around your "CTactileEnvironmentApp::InitInstance() line 127"
January 22nd, 2007, 06:43 AM
samallis

Re: Access violation

Quote:

Originally Posted by VictorN

Please, post the code snippet around your "CTactileEnvironmentApp::InitInstance() line 127"

I applied this code from somewhere and added to my code. I try to put as much related snippets as possible here.

Code:

BOOL CTactileEnvironmentApp::InitInstance() { // InitCommonControls() is required on Windows XP if an application // manifest specifies use of ComCtl32.dll version 6 or later to enable // visual styles. Otherwise, any window creation will fail. InitCommonControls(); //LoadIcon(IDI_APPICON); CWinApp::InitInstance(); // Initialize OLE libraries if (!AfxOleInit()) { AfxMessageBox("FAIL Initialize OLE libraries"); return FALSE; } AfxEnableControlContainer(); // Standard initialization // If you are not using these features and wish to reduce the size // of your final executable, you should remove from the following // the specific initialization routines you do not need. #ifdef _AFXDLL Enable3dControls(); // Call this when using MFC in a shared DLL #else Enable3dControlsStatic(); // Call this when linking to MFC statically #endif // Change the registry key under which our settings are stored. // TODO: You should modify this string to be something appropriate // such as the name of your company or organization. SetRegistryKey(_T("TactileEnvironment")); LoadStdProfileSettings(0); // Load standard INI file options (including MRU) // Register the application's document templates. Document templates // serve as the connection between documents, frame windows and views. CSingleDocTemplate* pDocTemplate; pDocTemplate = new CSingleDocTemplate( IDR_MAINFRAME, RUNTIME_CLASS(CTactileEnvironmentDoc), RUNTIME_CLASS(CMainFrame), // main SDI frame window RUNTIME_CLASS(CTactileEnvironmentView)); // RUNTIME_CLASS(CTestView)); AddDocTemplate(pDocTemplate); // Parse command line for standard shell commands, DDE, file open CCommandLineInfo cmdInfo; // If Not Parsed cmdInfo Will Not Get Values And Will Not Open cmdInfo.m_strFileName // ParseCommandLine(cmdInfo); // Dispatch commands specified on the command line if (!ProcessShellCommand(cmdInfo)) return FALSE; // The one and only window has been initialized, so show and update it. m_pMainWnd->ShowWindow(SW_SHOWMAXIMIZED); m_pMainWnd->UpdateWindow(); return TRUE; } //----------------------------------------------------------------------------- void CTactileEnvironmentView::OnDraw(CDC* pDC) //============================================================================= { CTactileEnvironmentDoc* pDoc = GetDocument(); CMainFrame* pMFrm = (CMainFrame*)AfxGetMainWnd(); ASSERT_VALID(pDoc); CSize viewWidth; CRect rect; int rectWidth; GetWindowRect(&rect); rectWidth = viewWidth.cx; viewWidth.cx = rect.Width(); //CALL FROM COMMAND// if ( first_time == true) { CWinApp* app=AfxGetApp( ); if (app->m_lpCmdLine[0] != _T('\0')) { char coman [500]; strcpy(coman,app->m_lpCmdLine); char copySecArg[500], copySecArg2[500]; char *filePath, *fileExtension; InArguments = strtok (coman, " ,"); while (InArguments != NULL) { vecArguments.push_back(InArguments); InArguments = strtok (NULL, " ,"); } firstArg = vecArguments[0]; secondArg = vecArguments[1]; thirdArg = vecArguments[2]; int intThirdArg; intThirdArg = atoi( thirdArg ); numTop = intThirdArg; strcpy(copySecArg, secondArg); strcpy(copySecArg2, copySecArg); filePath = strtok(copySecArg, "."); fileExtension = strtok (NULL, " ,\t\n"); if (!strcmp(firstArg,"graph") ) { if (!strcmp (fileExtension, "svg")) { eGraph_data gr_axis; gx=gr_axis; extern void graph_import_svg(char *filename, eGraph_data& gr_axis); graph_import_svg(copySecArg2,gx); double range[2]; range[0]= 10000000000; range[1]= -10000000000; double *table= gx.r_table(); int num_row=gx.r_num_row(); for (int i=0;i< num_row;i++) { for(int j=0;j<gx.r_num_col();j++) { if ( range[0] > table[i*NMAXDATA+j]) range[0]=table[i*NMAXDATA+j]; if ( range[1] < table[i*NMAXDATA+j]) range[1]=table[i*NMAXDATA+j]; } } if ( range[0]== 10000000000) range[0]=0.; if (range[1]== -10000000000) range[1]=0.; if ( range[1] <=range[0]) range[1]= range[0]+ 1.; gx.set_range(range[0],range[1]); FileSelected = TRUE; OnPaint(); } } else if (!strcmp(firstArg,"bitmap") ) { if (!strcmp (fileExtension, "gif")) { pDoc->m_FilePathName= copySecArg2; } } } } SetScrollSizes(MM_TEXT, m_ScrollSizeTotal); }

The second function is where I think it might be problem. It basically read the arguments sent to it. I execute without arguments, it seems fine. When I put in arguments to execute it, then there is problem.

Thanks.
January 22nd, 2007, 06:46 AM
thomas_nibu

Re: Access violation

I think it's got something to do with not initializing variables properly. Can you step through your code and find out. Set a break point inside OnDraw and find out what's the trouble.
January 22nd, 2007, 06:47 AM
Krishnaa

Re: Access violation

Have you tried debugging it line by line? After what line does this exception occur?
January 22nd, 2007, 06:51 AM
Gunaamirthavelu

Re: Access violation

hi

CWinApp::InitInstance(); comment this line debug ur program... its may be reason...
January 22nd, 2007, 06:58 AM
VictorN

Re: Access violation

1. CWinApp::InitInstance() method does nothing, it just returns TRUE; so noone needs to call it.
2. Where is the line 127?
January 22nd, 2007, 07:15 AM
samallis

Re: Access violation

Quote:

Originally Posted by VictorN

1. CWinApp::InitInstance() method does nothing, it just returns TRUE; so noone needs to call it.

I already delete the CWinApp::InitInstance, but it still the same problem.

2. Where is the line 127?[/QUOTE]
Line 127 is: return TRUE;
January 22nd, 2007, 07:21 AM
samallis

Re: Access violation

Quote:

Originally Posted by Krishnaa

Have you tried debugging it line by line? After what line does this exception occur?

I did this. It also stops at [run]-[Disassembly]

Code:

77E3C047 int 2Bh 77E3C049 ret 4 77E3C04C nop 77E3C04D nop 77E3C04E nop 77E3C04F nop 77E3C050 nop 77E3C051 mov eax,eax 77E3C053 push ebp

In the Call Stack:

Code:

USER32! 77e3c047() NTDLL! 77f91baf() CTactileEnvironmentApp::InitInstance() line 127 AfxWinMain(HINSTANCE__ * 0x00400000, HINSTANCE__ * 0x00000000, char * 0x001335e1, int 1) line 39 + 11 bytes WinMain(HINSTANCE__ * 0x00400000, HINSTANCE__ * 0x00000000, char * 0x001335e1, int 1) line 30 WinMainCRTStartup() line 330 + 54 bytes KERNEL32! 7c5989a5()
January 22nd, 2007, 07:25 AM
VictorN

Re: Access violation

Quote:

Originally Posted by samallis

Code:

// The one and only window has been initialized, so show and update it. m_pMainWnd->ShowWindow(SW_SHOWMAXIMIZED); m_pMainWnd->UpdateWindow();

You are using this code, but where did you allocate/initialize the m_pMainWnd pointer? Where is the m_pMainWnd->LoadFrame(...) call?
January 22nd, 2007, 07:34 AM
Krishnaa

Re: Access violation

Generally these problems are seen with reference to stack corruption (return address of function modified because of out of bounds writing), can happen with strings, strangly I dont see much code which can do this, can you post your project(entire, after deleting debug/release folders and intermidiate files) here so that someone can have a detailed look?
January 22nd, 2007, 07:38 AM
samallis

Re: Access violation

Quote:

Originally Posted by VictorN

You are using this code, but where did you allocate/initialize the m_pMainWnd pointer? Where is the m_pMainWnd->LoadFrame(...) call?

I don't have any m_pMainWnd->LoadFrame();. I have this project from somewhere else. I thought it is fine and I just add my part in it.

I have this:

Code:

m_pMainWnd->LoadFrame(IDR_MAINFRAME, WS_OVERLAPPEDWINDOW | FWS_ADDTOTITLE, 0, 0); m_pMainWnd->ShowWindow(SW_SHOWMAXIMIZED); m_pMainWnd->UpdateWindow();

It says that
Error C2039: 'LoadFrame' : is not a member of 'CWnd'...
January 22nd, 2007, 07:43 AM
VictorN

Re: Access violation

Quote:

Originally Posted by samallis

...
It says that
Error C2039: 'LoadFrame' : is not a member of 'CWnd'...

Yes, of course!
it should look like (it is - from standard MDI InitInstance implementation):

Code:

// create main MDI Frame window CMainFrame* pMainFrame = new CMainFrame; if (!pMainFrame->LoadFrame(IDR_MAINFRAME)) return m_bInitInstOK; m_pMainWnd = pMainFrame;
January 22nd, 2007, 07:53 AM
samallis

Re: Access violation

Quote:

Originally Posted by Krishnaa

Generally these problems are seen with reference to stack corruption (return address of function modified because of out of bounds writing), can happen with strings, strangly I dont see much code which can do this, can you post your project(entire, after deleting debug/release folders and intermidiate files) here so that someone can have a detailed look?

This is the source code. It is quite a big file. So I just choose source code.
January 22nd, 2007, 08:00 AM
samallis

Re: Access violation

Quote:

Originally Posted by VictorN

Yes, of course!
it should look like (it is - from standard MDI InitInstance implementation):

Code:

// create main MDI Frame window CMainFrame* pMainFrame = new CMainFrame; if (!pMainFrame->LoadFrame(IDR_MAINFRAME)) return m_bInitInstOK; m_pMainWnd = pMainFrame;

I have initialized the m_pMainWnd pointer as you suggested. But still having the same problem.
January 22nd, 2007, 08:16 AM
VictorN

Re: Access violation

You have posted non-complete project.
The Res folder, .rc and .dsp files are missing.
January 22nd, 2007, 08:18 AM
samallis

Re: Access violation

Quote:

Originally Posted by VictorN

You have posted non-complete project.
The Res folder, .rc and .dsp files are missing.

Apologies. Attached are the rest.
January 22nd, 2007, 08:27 AM
VictorN

Re: Access violation

Files VTEventProxy.h, VTEventProxy.cpp are missing. :confused:
January 22nd, 2007, 08:36 AM
samallis

Re: Access violation

Actually I have commented those functions which need these files. But anyway, this is the source files and also, I have attached a dll and lib file which it is needed. Thanks.
January 22nd, 2007, 08:40 AM
VictorN

Re: Access violation

But you left all #includes and some variables declared there! :wave:
January 22nd, 2007, 08:50 AM
samallis

Re: Access violation

Quote:

Originally Posted by VictorN

But you left all #includes and some variables declared there! :wave:

I know... Sorry about that. Hope the code is not too messy and the problem can soon be detected. Thanks again.
January 22nd, 2007, 08:52 AM
VictorN

Re: Access violation

Dear samallis!
I have no time to test your project "step-by-step" every time founding out that some .h/.cpp/.lid/.dll file are missing! :mad:
Please, prepare a new small test project reproducing the behaviour of your original one and post that small project .
January 22nd, 2007, 09:15 AM
samallis

Re: Access violation

Quote:

Originally Posted by VictorN

Dear samallis!
I have no time to test your project "step-by-step" every time founding out that some .h/.cpp/.lid/.dll file are missing! :mad:
Please, prepare a new small test project reproducing the behaviour of your original one and post that small project .

Sorry about the hassle.

This is the semi-complete one. But please use the last attachment - Part3File.zip too. With those 4 files in this zip file and this current attachment, they are complete. But I didn't include those opt, clw, etc files. Hope it is fine. Because they are too big.

Thanks
January 22nd, 2007, 09:16 AM
VictorN

Re: Access violation

I already tried with all your 1-2-3 zips and every time I found out that some .h/.cpp/.lid/.dll file are missing!
So, please pst not "the additional project", but a new small project completely reproducing your problems. Just create it from your old project and remove all unnecessary modules, #inludes an so on. Please test it yourself before posting to the forum!
January 22nd, 2007, 09:36 AM
samallis

Re: Access violation

Quote:

Originally Posted by VictorN

I already tried with all your 1-2-3 zips and every time I found out that some .h/.cpp/.lid/.dll file are missing!
So, please pst not "the additional project", but a new small project completely reproducing your problems. Just create it from your old project and remove all unnecessary modules, #inludes an so on. Please test it yourself before posting to the forum!

I tried it with the files only in All.zip and Part3File.zip. It doesn't seem to ask any other .cpp/.h file. I have a list of modules to be added in the Link tab>Object/library modules:

winmm.lib opengl32.lib glu32.lib glaux.lib ibmeci.lib

I just remember one situation. For this application, I have use opengl. I remember there is once I copy the exe file and all the lib and dll to another computer that doesn't have VC++ or another thing else. And I tried to launch it, it does't work. So I wonder if it only ok if VC++ and OpenGL is installed.

Please advice.... I am trying hard so that you can check my coding and fix the problem...... Please let me know what do you think. Thanks.
January 22nd, 2007, 09:44 AM
VictorN

Re: Access violation

Quote:

Originally Posted by samallis

I tried it with the files only in All.zip and Part3File.zip. It doesn't seem to ask any other .cpp/.h file. I have a list of modules to be added in the Link tab>Object/library modules:

winmm.lib opengl32.lib glu32.lib glaux.lib ibmeci.lib

....

Well, where is ibmeci.dll? And what about some other (possibly - ?) missing dlls?
Please, do what I wrote in my two previous post, otherwise I'll give up.
January 22nd, 2007, 10:06 AM
samallis

1 Attachment(s)

Re: Access violation

I have removed everything unnecessary and attached is the complete project. But one thing is that, although I have already remove some files from the project, but everytime I open it again, it will try to find the files. So I am sorry that I might need your help when you open the files:

1. Remove the "ibmeci.lib" from the Link tab in the setting for the Object/Modules.
2. Remove "VTEventProxy.cpp" and "VTEventProxy.h" from the list. They are not needed and they are already been deleted in the folders. Then everything is there. I tried the same zip file and they are fine.

Thanks.
January 22nd, 2007, 10:41 AM
samallis

Re: Access violation

Would you able to open the files ok?
January 22nd, 2007, 10:47 AM
VictorN

Re: Access violation

1. Your project does NOT link bacause of the settings "Use MFC in a Static Library". So I had to chaged it to use in Shared DLL.
2. Set a break point in the begin of the
XMLNode XMLNode::openFileHelper(const char *lpszXML, LPCTSTR tag) method, then start debugger to debug your application - you will see that this method "silently" calls exit 255;
Note, that it is a very serious mistake to use exit operator in any MFC application! To exit (at this stage, when mainframe window already exists) you should PostMessage/SendMessage a WM_CLOSE message to your mainframe window!
January 22nd, 2007, 10:58 AM
samallis

Re: Access violation

Quote:

Originally Posted by VictorN

1. Your project does NOT link bacause of the settings "Use MFC in a Static Library". So I had to chaged it to use in Shared DLL.
2. Set a break point in the begin of the
XMLNode XMLNode::openFileHelper(const char *lpszXML, LPCTSTR tag) method, then start debugger to debug your application - you will see that this method "silently" calls exit 255;
Note, that it is a very serious mistake to use exit operator in any MFC application! To exit (at this stage, when mainframe window already exists) you should PostMessage/SendMessage a WM_CLOSE message to your mainframe window!

Hi VictorN. I am using someone else code of the XMLParse.cpp. But I see what you mean of the exit(255);. I have make a test by commented this line, but it seems that still having the same problem where when the window is opened, and then I click on other windows twice, the application window will disappear and closes.
January 22nd, 2007, 11:01 AM
samallis

Re: Access violation

Also, the problem happens when I have arguments passed to it when it is launched. If without the arguments, there is no such a problem.
January 22nd, 2007, 11:19 AM
VictorN

Re: Access violation

It is up to you to investigate why and when your XMLNode XMLNode::openFileHelper method or/and LPTSTR fromXMLString global function call exit.
I only wonder why are you using these silly ways to exit the application and why are you doing it silently (why not to display a simple AfxMessageBox with some meaningful message about the problem?)!
January 22nd, 2007, 12:08 PM
samallis

Re: Access violation

Quote:

Originally Posted by VictorN

It is up to you to investigate why and when your XMLNode XMLNode::openFileHelper method or/and LPTSTR fromXMLString global function call exit.
I only wonder why are you using these silly ways to exit the application and why are you doing it silently (why not to display a simple AfxMessageBox with some meaningful message about the problem?)!

This is not my file, I got it from somewhere else. So I never thought that it will create any problem and never suspect of the functionality of the code.

I have try to get rid of the exit command in this file, but it seems there is still have the problem. I am just thinking this might not be the only reason that creates the problem. But anyway, thanks for your help and I will try to find the problem. Thanks again.
January 22nd, 2007, 12:48 PM
VictorN

Re: Access violation

You are welcome!

PS. There are some other problems in your project. You could see some "Warnings" messages when compiling your application... :cool:
January 23rd, 2007, 12:48 PM
samallis

Re: Access violation

Unfortunately, after trying hard to debug the problem, I still having the problem.

VictorN, although I have look through the exit(255) for the whole project and make sure there is no silent quit, but the problem is still there.

I really reckon the problem is when I pass the arguments because the application only closes itself when there is argument sent to it before the launching. It is fine when there is none argument passing to it.

Please give me a hand on this.... I would be the most appreciate it.
January 23rd, 2007, 12:57 PM
VictorN

Re: Access violation

Since you don't provide any useful information it is impossible to help you more...
The only thing is clear - you process or/and use the command line parameters the wrong way.
Again: you should debug your code step by step incuding the stepping in (Use F11 to do it) each your method from the very begin (from the ctor/create/initialize of every class and so on...)
January 23rd, 2007, 01:18 PM
samallis

Re: Access violation

Quote:

Originally Posted by VictorN

Since you don't provide any useful information it is impossible to help you more...

I have already attached my whole project in the thread and clear stated the problem I am having. It's not that I am not trying to debug it myself and just asking for help without trying it. But I couldn't fix it and I am really just learning from scratch about programming. I just genuinely need some helps.
Anyway, thanks.