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  • Visual C++: Invalid allocation size. How to force the debugger to stop on this message?

    - by James Roth
    The MFC program I am debugging is printing this message in the "Output" window in Visual Studio 9.0: HEAP[AppName.exe]: Invalid allocation size - 99999998 (exceeded 7ffdefff) I'm pretty sure this is due to a bad "new", uninitialized variable or similar error. The question is: how do I get the debugger to stop on this message so that I can view the stack trace and solve the problem?

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  • 64 bit tools like BoundsChecker & Purify

    - by titanae
    For many years I have used two great tools BoundsChecker & Purify, but the developers of these applications have let me down, they no longer put effort into maintaining them or developing them. We have corporate accounts with both companies, and they both tell me that they have no intention of producing versions to support 64 bit applications. Can anyone recommend either open source or commercial alternatives that support 64 bit native C++/MFC applications?

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  • How to write this kind of INI file

    - by menok
    I want to write a ini. file in MFC ,and I know those typical methods with section names, key names and key values. I`m wondering how to write a ini file which contains only a section name. a ini file like below ... [section] ... I have tried the function writeprivateprofilestring() with two NULL parameters but it failed.

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  • HTTPS and C++ - Not an easy match?

    - by Holli
    I need to access a HTTPS protected website (HTML or XML) from an C++ MFC application and I would like an easy solution. But I did a little research and it's seems to me HTTPS and C++ don't play nice and easy together. Is there any recommended class library for HTTPS web access? Should be easy to use and not too expensive.

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  • Is there anything called solicit and unsolicit messages/events in window programming?

    - by AKN
    Can someone pls tell me do we have solic & unsolic message/events in MFC or window programming? In devices solic response and unsolic response is said as immediate response (like acknowledgement to commands) and late response (generated without any further commands being sent) respectively. Likewise can we say events as solic / unsolic based on immediate occurrence and late occurrence?

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  • how to load image from file using MFC

    - by Sweety Khan
    **my browse button code is void CFileOpenDlg::OnBnClickedButton1() { // TODO: Add your control notification handler code here CFileDialog dlg(TRUE); int result=dlg.DoModal(); if(result==IDOK) { path=dlg.GetPathName(); UpdateData(FALSE); } } and this is the code for loading an image from resource but tht does not work for loading an image from file. i know LoadImage(); is used for this but how? how can i edit this code to load image from file. Plzz help..... void CFileOpenDlg::OnBnClickedButton2() { // TODO: Add your control notification handler code here CRect r; CBitmap* m_bitmap; CDC dc, *pDC; BITMAP bmp; m_bitmap = new CBitmap(); m_bitmap-LoadBitmapW(IDB_BITMAP1); m_bitmap-GetBitmap(&bmp); pDC = this-GetDC(); dc.CreateCompatibleDC(pDC); dc.SelectObject(m_bitmap); pDC-BitBlt(200, 200, bmp.bmWidth, bmp.bmHeight, &dc,0 , 0, SRCCOPY); m_bitmap-DeleteObject(); m_bitmap-Detach(); } waiting for reply........**

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  • Brother MFC + Windows 7 [closed]

    - by juFo
    I'm using Windows 7 64bit (RTM version). I bought myself a new Brother MFC6490CW but I'm having troubles with installing the drivers. When I set compatibility to Windows Vista Service Pack 2 I can only install the scanner functionality from the Brother Solution Center and not the printer driver: Printer (driver) FAILED FAILED Scanner (driver) Installed Connected PC-FAX send FAILED FAILED PC-FAX receive Installed Connected Remote Setup Installed Connected Anybody who was a fix for this? The brother drivers for windows 7 will be released at the end of October and I can't wait so long. Need my printer.. Tnx in advance.

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  • Help to restructure my Doc/View more correctly

    - by Harvey
    Edited by OP. My program is in need of a lot of cleanup and restructuring. In another post I asked about leaving the MFC DocView framework and going to the WinProc & Message Loop way (what is that called for short?). Well at present I am thinking that I should clean up what I have in Doc View and perhaps later convert to non-MFC it that even makes sense. My Document class currently has almost nothing useful in it. I think a place to start is the InitInstance() function (posted below). In this part: POSITION pos=pDocTemplate->GetFirstDocPosition(); CLCWDoc *pDoc=(CLCWDoc *)pDocTemplate->GetNextDoc(pos); ASSERT_VALID(pDoc); POSITION vpos=pDoc->GetFirstViewPosition(); CChildView *pCV=(CChildView *)pDoc->GetNextView(vpos); This seem strange to me. I only have one doc and one view. I feel like I am going about it backwards with GetNextDoc() and GetNextView(). To try to use a silly analogy; it's like I have a book in my hand but I have to look up in it's index to find out what page the Title of the book is on. I'm tired of feeling embarrassed about my code. I either need correction or reassurance, or both. :) Also, all the miscellaneous items are in no particular order. I would like to rearrange them into an order that may be more standard, structured or straightforward. ALL suggestions welcome! BOOL CLCWApp::InitInstance() { InitCommonControls(); if(!AfxOleInit()) return FALSE; // Initialize the Toolbar dll. (Toolbar code by Nikolay Denisov.) InitGuiLibDLL(); // NOTE: insert GuiLib.dll into the resource chain SetRegistryKey(_T("Real Name Removed")); // Register document templates CSingleDocTemplate* pDocTemplate; pDocTemplate = new CSingleDocTemplate( IDR_MAINFRAME, RUNTIME_CLASS(CLCWDoc), RUNTIME_CLASS(CMainFrame), RUNTIME_CLASS(CChildView)); AddDocTemplate(pDocTemplate); // Parse command line for standard shell commands, DDE, file open CCmdLineInfo cmdInfo; ParseCommandLine(cmdInfo); // Dispatch commands specified on the command line // The window frame appears on the screen in here. if (!ProcessShellCommand(cmdInfo)) { AfxMessageBox("Failure processing Command Line"); return FALSE; } POSITION pos=pDocTemplate->GetFirstDocPosition(); CLCWDoc *pDoc=(CLCWDoc *)pDocTemplate->GetNextDoc(pos); ASSERT_VALID(pDoc); POSITION vpos=pDoc->GetFirstViewPosition(); CChildView *pCV=(CChildView *)pDoc->GetNextView(vpos); if(!cmdInfo.m_Fn1.IsEmpty() && !cmdInfo.m_Fn2.IsEmpty()) { pCV->OpenF1(cmdInfo.m_Fn1); pCV->OpenF2(cmdInfo.m_Fn2); pCV->DoCompare(); // Sends a paint message when complete } // enable file manager drag/drop and DDE Execute open m_pMainWnd->DragAcceptFiles(TRUE); m_pMainWnd->ShowWindow(SW_SHOWNORMAL); m_pMainWnd->UpdateWindow(); // paints the window background pCV->bDoSize=true; //Prevent a dozen useless size calculations return TRUE; } Thanks

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  • MS Web Browser on Pocket PC

    - by PoweRoy
    Hi all, I'm trying to create a custom web browser for on a pocket pc in C++ MFC. When I add the Microsoft Web Browser activeX control and run the app on the pocket pc (emulator) then this error pops up: "Debug assertion failed. occcont.cpp line: 916" When I look in the debug window of VS2005: "CoCreateInstance of OLE control {8856F961-340A-11D0-A96B-00C04FD705A2} failed. Result code: 0x80040154 Is the control is properly registered? Warning: Resource items and Win32 Z-order lists are out of sync. Tab order may be not defined well." How can I use this control on a pocket pc? Or is there a similar control that works?

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  • Exceptions silently caught by Windows, how to handle manually?

    - by Mark Ingram
    We're having problems with Windows silently eating exceptions and allowing the application to continue running, when the exception is thrown inside the message pump. For example, we created a test MFC MDI application, and overrode OnDraw: void CTestView::OnDraw(CDC* /*pDC*/) { *(int*)0 = 0; // Crash CTestDoc* pDoc = GetDocument(); ASSERT_VALID(pDoc); if (!pDoc) return; // TODO: add draw code for native data here } You would expect a nasty error message when running the application, but you actually get nothing at all. The program appears to be running perfectly well, but if you check the output window you will see: First-chance exception at 0x13929384 in Test.exe: 0xC0000005: Access violation writing location 0x00000000. First-chance exception at 0x77c6ee42 in Test.exe: 0xC0150010: The activation context being deactivated is not active for the current thread of execution. I know why I'm receiving the application context exception, but why is it being handled silently? It means our applications could be suffering serious problems when in use, but we'll never know about it, because our users will never report any problems.

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  • "Debug Assertion" Runtime Error on VS2008?

    - by Linda Cohen
    I' writing a C++ MFC program on VS2008 and I'm getting this "Debug Assertion Error" when I first run the program sometimes. When I try to debug it, it takes me to this winhand.cpp file which is not part of the program I wrote so I'm not sure how to debug this. It takes the error to this place in winhand.cpp CObject* pTemp = LookupTemporary(h); if (pTemp != NULL) { // temporary objects must have correct handle values HANDLE* ph = (HANDLE*)((BYTE*)pTemp + m_nOffset); // after CObject ASSERT(ph[0] == h || ph[0] == NULL); if (m_nHandles == 2) ASSERT(ph[1] == h); } So why does this error happen? Why does it only happen sometimes (50% of the time)? How would I debug this? I'll provide some code if is needed. THANKS!

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  • Changing Screen co-ordinates

    - by Anu
    Hi, Just i come across one application.When i load that application,the actual applcation is like toolbar only.Its get loaded in the top of the screen.And the desktop items automatically get moved and displayed below toolbar.Even when i open any other window and maximized the windoe,its get maximized below toolbar only.The screen co ordinates changed to new size. If before the screen size as (0,0,800,600),after this applcation loading it changed to (0,100,800,600). When i exit the application the screen changed to original position and all desktop items get arranged to original positiom. Hows it possible? Can i do that in MFC.

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  • How to get CEdit to scroll properly?

    - by CSharperWithJava
    I have a CEdit control that's used to display a diagnostics output. Sometimes the data overflows the screen size, so naturally I set the Vertical Scroll property to true (MFC dialog editor). But then, when I tried to scroll the text that was in the window before isn't cleared and the new text is written over it. The result is a big mess of everything I have scrolled past. I've looked for a draw background property or something similar that will erase everything in the window while scrolling (before redrawing the new data). Any suggestions?

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  • SetSel on EN_SETFOCUS or WM_SETFOCUS doesn't work

    - by Coder
    I've ran into next mystic thing in Winapi/MFC, I have an edit box, contents of which I have to select on Tab, Lclick, Rclick, Mclick and so on. The sort of obvious path is to handle the SETFOCUS message and call SetSel(0, -1), which should select all text. But it doesn't work! What's wrong? I tried googling, everyone seems to override Lclilks or handle SetSel in parent windows, but this is wrong from encapsulation point of view, also multiple clicks (user wants to insert something in the middle of the text) will break, and so on. Why isn't my approach working, I tried like 10 different ways, tried to trap all possible focus messages, looked up info on MSDN, but nothing works as expected. Also, I need to recreate the carret on focus, which also doesn't seem to work. SETFOCUS message gets trapped alright. If I add __asm int 3, it breaks every time. It's the create carret and setsel that gets swallowed it seems.

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  • Windows Constants for Ctrl+X, Ctrl+C, and Ctrl+V

    - by Jonathan Wood
    I've got some older MFC code I wrote that I'm "freshening up" a bit. I have the following code in a window class' OnChar() handler. I really don't like using constants like 0x18. I'd like to make the code more readable. I know I can declare my own, but are there no Windows macros for these values? I couldn't find anything about this on the web. // Check for clipboard commands switch (nChar) { case 0x18: // Ctrl+X - Cut OnEditCut(); break; case 0x03: // Ctrl+C - Copy OnEditCopy(); break; case 0x16: // Ctrl+V - Paste OnEditPaste(); break; }

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  • WinDbg can't find mfc90 version 9.0.30729.4148 symbols on msdl.microsoft.com

    - by Simon Hofverberg
    I think the title states my problem fairly well. Where are those mfc symbols? Some background info: I have a crash dump that I want to analyze in WinDbg. My symbol path contains msdl.microsoft.com/download/symbols (and it says h t t p first but I'm a new user here so I'm not allowed to write that twice. The 9.0.30729.4148 version seems to be installed by some Windows update When a dump contains an earlier version of mfc90, it is located by WinDbg on the Microsoft symbol server with the same settings. When I use !sym noisy, the output for mfc90.dll contains: SYMSRV: http://msdl.microsoft.com/download/symbols/mfc90.dll/4A596D4939c000/mfc90.dll not found The same thing happens on two different computers Edit: See my comments below. The symbols are present on the server, but WinDbg can't get them.

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  • Code coverage in Win32 app

    - by graham.reeds
    We are just about to start a new project. The Proof of Concept (PoC) for this project was done simply using Win32. The plan is/was to flesh out the PoC, tidy the uglier parts and meet the requirements set by the project owners. One of the requirements for the actual project is 100% code coverage but I can see problems ahead: How can I acheive 100% code coverage with Win32 - the message pump will be exceptionally difficult to test effectively?! I could compile to a DLL but won't there be code in the main app that won't be under coverage? I am thinking of dropping the Win32 code and moving to MFC - at least then a lot of the boiler plate stuff will be hidden from view (and therefore coverage). Any thoughts on the problem?

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  • Can a CWinApp be placed in a DLL?

    - by jmucchiello
    I'm updating some legacy apps to Visual Studio 10 and am in linker hell. All of these DLLs derive classes from CWinApp and use AfxGetApp() to get access to the object. When I link the DLLs I get unresolved externals that look like global static objects that would get pulled in by a normal app's main(): Shell.lib(SHELL.obj) : error LNK2001: unresolved external symbol "public: static struct CRuntimeClass const CException::classCException" (?classCException@CException@@2UCRuntimeClass@@B) Shell.lib(SHELL.obj) : error LNK2001: unresolved external symbol "public: static struct CRuntimeClass const CFrameWnd::classCFrameWnd" (?classCFrameWnd@CFrameWnd@@2UCRuntimeClass@@B) Shell.lib(SHELL.obj) : error LNK2001: unresolved external symbol "public: static class CRect const CFrameWnd::rectDefault" (?rectDefault@CFrameWnd@@2VCRect@@B) My current combination of ignore default libraries and additional libraries (the method you can easily google to find the answer to linker hell) is: msvcprtd.lib,mfc100d.lib,mfcs100d.lib,libcmtd.lib When I add nafxcwd.lib (the mfc library), these three external symbols resolve but I end up with a bunch of other duplicate symbols (requiring the use of /FORCE:MULTIPLE) and in end __argc and __argv become unresolved. So the basic question is: Can you link a DLL containing a CWinApp in VS10? How do you setup the linker to do it?

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  • Facing problem in VB6.0 Activex Controls design.

    - by Dharmaraju
    Hi, This is dharmaraju, I am facing some problem in Activex Controls design. Kindly help me to resolve the issue. Problem Description: I have created a property mentioned below for a textbox. Public Property Let DataControl_Value(ByVal Value As Variant) Public Property Get DataControl_Value() As Variant This property is editable at design time if i use it VB6.0 Applications. Same thing is read only in case if i use it in vc++ MFC applications. I have defined one more property like below. Public Property Let DataControl_DataItemDef(ByVal Value As DTMDATACONTROLLib.IXMLDOMNode) Public Property Get DataControl_DataItemDef() As DTMDATACONTROLLib.IXMLDOMNode In this case the "DataControl_DataItemDef" property will not be available at design time.[not displaying in control's property window.] Kindly help me to resolve the issue.

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