C / C++ / MFC

18-Dec-05 8:49

Hello,

I don't know what is wrong with my code. I got assertion of memory. Thank you very much for your help Smile | :)

In example.h

<br />
typedef MyType struct<br />
      { int one; int two};<br />
<br />

In my example.cpp:

<br />
void main(void)<br />
{<br />
  std::vector<<MyType>> toto;<br />
  toto.reserve(10);<br />
  PlayWithToto(&toto);   // here i 've got no assertion messages<br />
  toto.clear();<br />
<br />
}  <= here I've got an assertion ! (even if I don't call toto.clear()<br />
void PlayWithToto(std::vector<<MyType>> *titi)<br />
{<br />
   MyType temp;<br />
   temp.one = 1;<br />
   temp.two = 2;<br />
<br />
   titi->push_back(temp);<br />
}

-- modified at 14:53 Sunday 18th December, 2005

Jörgen Sigvardsson18-Dec-05 8:56

18-Dec-05 8:56

Well.. what is the assertion?

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selecta18-Dec-05 10:25

18-Dec-05 10:25

Hello,

I've got a message box : exeption ... (in french : non gérée)

And the debugger stop in dbgrpt.c code :

#undef _CrtDbgBreak<br />
<br />
_CRTIMP void _cdecl _CrtDbgBreak(<br />
        void<br />
        )<br />
{<br />
        DebugBreak();<br />
}<= THE DEBOGGER STOP HERE<br />

When I click F5, the debogger stop at :

<br />
CWnd* PASCAL CWnd::FromHandlePermanent(HWND hWnd)<br />
{<br />
	CHandleMap* pMap = afxMapHWND();<br />
	CWnd* pWnd = NULL;<br />
	if (pMap != NULL)<br />
	{<br />
		// only look in the permanent map - does no allocations<br />
		pWnd = (CWnd*)pMap->LookupPermanent(hWnd);<br />
		ASSERT(pWnd == NULL || pWnd->m_hWnd == hWnd);  <= HERE<br />
	}<br />
	return pWnd;<br />
}<br />

Thanks you Smile | :)

Jörgen Sigvardsson18-Dec-05 10:29

18-Dec-05 10:29

If you look at the callstack, please navigate to the call frame just before _CrtDbgBreak(). _CrtDbgBreak() is just the function that invokes the debugger.

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selecta18-Dec-05 11:03

18-Dec-05 11:03

Hello,

Before the call to _crtDgbBreak() I've got this in the callstack :

msvcr71d.dll!_CrtDbgReport(int nRptType=2, const char * szFile=0x7c144c68, int nLine=323, const char * szModule=0x00000000, const char * szFormat=0x00000000, ...)

mfc71d.dll!AfxAssertFailedLine(const char * lpszFileName=0x7c144c68, int nLine=323)

mfc71d.dll!CWnd::FromHandlePermanent(HWND__ * hWnd=0x0026061a)

mfc71d.dll!AfxWndProc(HWND__ * hWnd=0x0026061a, unsigned int nMsg=15, unsigned int wParam=0, long lParam=0)

mfc71d.dll!AfxWndProcBase(HWND__ * hWnd=0x0026061a, unsigned int nMsg=15, unsigned int wParam=0, long lParam=0)

There is no call to a specific function in my code... only calls to AfxWnd...

Thanks you for your help Smile | :)

Jörgen Sigvardsson18-Dec-05 11:15

18-Dec-05 11:15

I'm not sure what has happened. It is clearly unrelated to your code. What type of project is it? MFC? You should create a console project, judging by the code you have shown us. Smile | :)

--
Pictures[^] from my Japan trip.

selecta18-Dec-05 11:23

18-Dec-05 11:23

Hi ;

I'm sorry to have bother you... I just create a simply CDialog with only this code and I've got no assertion... So there is something in my app that bug somewhere...

Thank you very much for your help !!

Jörgen Sigvardsson18-Dec-05 11:30

18-Dec-05 11:30

I suspect that you have created an MFC project, and added the main() function. MFC apps aren't supposed to work with a main() function. If you test the code with a clean console project, you will have no bugs.

I see no apparent bugs in your code.

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PJ Arends18-Dec-05 12:17

PJ Arends

18-Dec-05 12:17

selecta wrote:
HWND__ * hWnd=0x0026061a, unsigned int nMsg=15

nMsg=15 is WM_PAINT.

Your app is trying to send a WM_PAINT message to window 0x0026061a but MFC is not able to find that window in its map of window handles (via pMap->LookupPermanent) so it has no idea where to send the message.

selecta18-Dec-05 13:24

How to interface PC Addon Cards using vc++

18-Dec-05 13:24

Thanks you all of you for your help. I've finally found what was worng in my code ... It was simply a little tab char[x] that was to small :p

sreewiz18-Dec-05 6:24

sreewiz

18-Dec-05 6:24

HI
I am an amateur in the field of vc++. i am doing my final year project, in which i am developing a user interface using VB6.0
I need to interface this GUI with some Pc Add on cards via A vc++ layer
could anyone please help me out with this task?

If there are some useful links ,do inform me at sreekanth101@rediffmail.com

tanking you in anticipation

Sreekanth

Override ListCtrl automatic horizontal scrolling on Left/Right KeyDown

Maverick18-Dec-05 4:59

Maverick

18-Dec-05 4:59

I have a Report style CListCtrl and placed it in a CFormView.

I have lots of columns such that not all of the columns appear on the ClistCtrl area so there is automatically a horizontal scrollbar.

Now when i press left or right keyboard keys, I want Report list ctrl is to select previous or next column. I have that code already but it doesn't get called. Instead when i press the arrow keys, the list ctrl just scrolls left or right.

How do I override this behavior? What are the related functions needed?

tnx in advance

maverick

Publishing an Visual C++ Exe

Tazzu18-Dec-05 4:12

Tazzu

18-Dec-05 4:12

Hi All

Can anyone let me know how I can publish an Exe over Cluster Servers.
When I am trying to access the exe from Cluster Servers its asking me to Publish the Exe which is because of Security settings of Windows 2003.

Regards,

Aziz Dilwara Wala

Software Programmer/System Consultant

CivilSoft - Dubai.

Tel : (0)4-2955660

Fax : (0)4-2955662

Email : aziz@civilsoft.net

Detecting 3rd party firewall

vinoth355618-Dec-05 1:08

vinoth3556

18-Dec-05 1:08

Can anyone please help me in the following issue
my requirement is to detect if a 3rdparty firewall like Norton/Mcafee is installed. Do any one know of a generic windows api that tells if a 3rd party firewall is installed.THanks for the help in Advance.

-Vinoth.

Iterators, NULL and Visual Studio 2005

Franz Klein17-Dec-05 23:06

Franz Klein

17-Dec-05 23:06

In Visual Studio .NET 2003 I could write code like the following without any errors:

std::vector<string>::iterator position;<br />
position = NULL;

However the same code under Visual Studio 2005 produces errors.

Which is the correct way to use NULL's and iterators in VS 2005?

I am the handsome one in the crowd.

Kevin McFarlane18-Dec-05 0:49

Kevin McFarlane

18-Dec-05 0:49

Not done any C++ for ages but I thought iterators could only point to coll.begin(), coll.end() or some position in the collection?

Maybe what you did in VS 2003 was non-standard behaviour and VS 2005 now enforces it?

Kevin

Bob Stanneveld18-Dec-05 2:49

Bob Stanneveld

18-Dec-05 2:49

Hello,

You're right about that, the only valid values an iterator can have are collection.begin() through collection.end() where the latter just points to one element after the last one.

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Kevin McFarlane18-Dec-05 3:20

Kevin McFarlane

18-Dec-05 3:20

Nice to know that my memory hasn't deserted me yet! Smile | :)

Kevin