C / C++ / MFC Discussion Boards

Re: very strange memory problem ....please help

KarstenK1-Oct-09 0:33

KarstenK

1-Oct-09 0:33

you got to code it somewhere in your code!!!

mNotifyOptions = new NotifyOptions();

Did you?

Press F1 for help or google it.
Greetings from Germany

Re: very strange memory problem ....please help

TimothyPMoore1-Oct-09 2:38

TimothyPMoore

1-Oct-09 2:38

I would do a search and see if the implementation of malloc was modified between gcc library 2.4 to 2.6. My guess is that if the implementation of malloc changed, memory could be allocated differently using 2.6 over 2.4. You may have already had a memory bug previously using 2.4 but it did not manifest itself until the memory was allocated in some different way using the new library.

Apparently somewhere code is overwriting memory in your class corrupting the private contents of the strings or corrupting the internal datastructures of malloc itself. You need to watch the memory locations for the strings to narrow down when the contents of those strings become corrupted.

One clarification ... do the seg faults happen only when setting the string value or anytime you use the contents of the string ?

Re: very strange memory problem ....please help

David Crow1-Oct-09 3:23

David Crow

1-Oct-09 3:23

class SOAP_CMAC MyUserProfile
{
public:
    std::string name; 
    std::string name2; 
    std::string firstName; 
    LONG64 pwdStatus; 
    std::string setType; 
    class NotifyOptions *mNotifyOptions; 
    LONG64 USCOREtype; 
    std::string USCOREmacAddress; 
    std::string USCOREipAddress; 
    MyUserProfile() { }
    virtual ~MyUserProfile() { }
};
  
void main( void )
{
    MyUserProfile mup;
    mup.USCOREmacAddress = "1234"; <<--- this crashes?
}

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

Excluive low-level access to a disk

mooromets_ua30-Sep-09 21:48

mooromets_ua

30-Sep-09 21:48

Good day.
I need the next: to get an access to a disk under Windows platform. Access should be an exlusive.
What I already have found:

int res = DeviceIoControl( hDevice, FSCTL_LOCK_VOLUME, NULL, 0, NULL, 0, &dw, NULL );

hDevice- handle created by CreateFile(...)
This function with FSCTL_LOCK_VOLUME will block the disk so no one be able to get an access untill I unblock BUT function fails if there any application has already opened the disk.
I need some kind of "chkdsk /f" behaviour: if there's any handle to this disk I can tear them.
Thank you.

I'm not like them, but I can pretend.

Create Multipage Images

Game-point30-Sep-09 20:37

Game-point

30-Sep-09 20:37

Hi

How to create Multi page images ??

Re: Create Multipage Images

Rajesh R Subramanian30-Sep-09 21:55

Rajesh R Subramanian

30-Sep-09 21:55

raju_Code wrote:
How to create Multi page images ??

Run a loop and create an one page image in each iteration? Seriously, read the guidelines and include more details.

Also, what's wrong with the previous reply given to you? Why not continue the conversation there by replying to the person who answered you, instead of creating a new thread each time?

It is a crappy thing, but it's life -^ Carlo Pallini

Re: Create Multipage Images

Game-point1-Oct-09 0:09

Game-point

1-Oct-09 0:09

Sorry Mr.rajesh ...

~~~~~~~~~~~~~Raju~~~~~~~~~~~~~

Re: Create Multipage Images

CPallini30-Sep-09 22:27

CPallini

30-Sep-09 22:27

raju_Code wrote:
How to create Multi page images ??

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

[My articles]

Re: Create Multipage Images

Game-point30-Sep-09 22:46

Game-point

30-Sep-09 22:46

Sorry!!!

~~~~~~~~~~~~~Raju~~~~~~~~~~~~~

Re: Create Multipage Images

Hamid_RT1-Oct-09 1:15

Hamid_RT

1-Oct-09 1:15

could you tell me what is it?

Of one Essence is the human race
thus has Creation put the base
One Limb impacted is sufficient
For all Others to feel the Mace
(Saadi )

Re: Create Multipage Images

Game-point1-Oct-09 1:49

Game-point

1-Oct-09 1:49

Thanks for your response!!!!

How to create Multi page image file

for example

its combination of more than one images..

Just i explain rough coding ...

CImage __Image[4];<br />
__Image[0].Load(_T("1.tif"));<br />
__Image[1].Load(_T("2.tif"));<br />
__Image[2].Load(_T("3.TIF"));	<br />
__Image[4].Save(_T("output.tif"))=_Image[0]+__Image[1]+__Image[2];

// The final image output shout be 3 pages per image

Thanks!

Re: Create Multipage Images

Hamid_RT1-Oct-09 2:40

Hamid_RT

1-Oct-09 2:40

you can make a image with three images on it and its very easy and dont need to lot of work and then you save it on a bmp or jpg file.

Of one Essence is the human race
thus has Creation put the base
One Limb impacted is sufficient
For all Others to feel the Mace
(Saadi )

Recognize smart card reader type using winscard visual C++ 6.0

Eka Candra30-Sep-09 19:54

Eka Candra

30-Sep-09 19:54

Dear all,

I get a program that can recognize reader type (contact or contactless reader) before any smart card is inserted into reader.
Generally I used SCardEstablishContext[^] and SCardListReaders[^] functions in order to load name of readers.
I usually use winscard in visual C++ 6.0.
Those two function have just two dynamic variable, handle of reader and list of reader name.

Do anybody know how separated contact reader type from contactless reader type without insert any smartcard?
Please help me...

Thanks before....

Recognize smart card reader type using winscard visual C++ 6.0

Eka Candra30-Sep-09 19:52

Eka Candra

30-Sep-09 19:52

Dear all,

I get a program that can recognize reader type (contact or contactless reader) before any smart card is inserted into reader.
Generally I used SCardEstablishContext[^] and SCardListReaders[^] functions in order to load name of readers.
Those two function have just two dynamic variable, handle of reader and list of reader name.

Do anybody know how separated contact reader type from contactless reader type without insert any smartcard?
Please help me...

Thanks before....

Message Closed

18-Feb-21 4:16

Nikolay Fomichev

18-Feb-21 4:16

Message Closed

modified 19-Feb-21 1:21am.

Re: Recognize smart card reader type using winscard visual C++ 6.0

Richard Deeming18-Feb-21 4:30

Richard Deeming

18-Feb-21 4:30

I seriously doubt Eka is still looking for an answer 11½ years later. D'Oh! | :doh:

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

Program in c language

anassamar30-Sep-09 19:45

anassamar

30-Sep-09 19:45

Hi I use VC++8 environment to execute my first program in c ,but the following error appears (why???):

Project : error PRJ0003 : Error spawning 'rc.exe'.

my program is:

#include <stdio.h>
void main()
{
printf("Student \n");
}

Thank you

thank you
soso

Re: Program in c language

Code-o-mat30-Sep-09 20:33

Code-o-mat

30-Sep-09 20:33

Does this[^] help?

> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Sometimes you just have to hate coding to do it well. <

Re: Program in c language

David Crow1-Oct-09 3:31

David Crow

1-Oct-09 3:31

anassamar wrote:
Project : error PRJ0003 : Error spawning 'rc.exe'.

Does the file actually exist?

Multipage tiff

Game-point30-Sep-09 19:01

Game-point

30-Sep-09 19:01

Hi

How to make multipage tiff file ??

Thanks Sleepy | :zzz:

Re: Multipage tiff

Peter Weyzen30-Sep-09 20:42

Peter Weyzen

30-Sep-09 20:42

Check out: http://freeimage.sourceforge.net/[^]

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br />
Peter Weyzen<br />
Staff Engineer<br />
<a href="http://www.soonr.com">SoonR Inc -- PC Power delivered to your phone</a>

Re: Multipage tiff

Game-point30-Sep-09 20:56

Game-point

30-Sep-09 20:56

Thanks for your replay ...

<code>CBitmap pBitmap[2];
 pBitmap[0].LoadBitmap(L"1.tif");
 pBitmap[1].LoadBitmap(L"2.tif");
 CImageList imgl;
 imgl.Create(500, 600, ILC_MASK | ILC_COLOR32, 0, 0);
 imgl.Add(&pBitmap[0],RGB(0,0,0));
imgl.Add(&pBitmap[1],RGB(0,0,0));</code>

where i am going to right path ??

Is it possible to find out where a release version crashed by knowig the address?

Erik30-Sep-09 18:17

Erik

30-Sep-09 18:17

Hi,

I was just wondering if there is a way to find out in which function a release-version of your program crashes if you have the source code and a debug build available.

For example, your customer has a release version of test.exe, which uses to crash at the same offset all the time, say

"Application Failure test.exe 1.0.0.0 in test.exe 1.0.0.0 at offset 003f5d60"

is what he gets. Now I have the sourcecode, Visual studio, a debugversion of test.exe available. But what will the offset help me? Can I somehow find out to which function in my program code the address 003f5d60 corresponds?

Re: Is it possible to find out where a release version crashed by knowig the address?

PJ Arends30-Sep-09 18:23

PJ Arends

30-Sep-09 18:23

Finding crash information using the MAP file[^]

You may be right
I may be crazy
-- Billy Joel --

Within you lies the power for good - Use it!

Re: Is it possible to find out where a release version crashed by knowig the address?

Randor 30-Sep-09 19:41

Randor

30-Sep-09 19:41

Hi PJ,

Actually /MAPINFO:LINES was removed beginning with VS2005. It was probably removed due to the compiler optimizer.

Best Wishes,
-David Delaune

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