Re: Memory Leak [modified] - C / C++ / MFC Discussion Boards

kapardhi19-Apr-09 21:59

19-Apr-09 21:59

Hai!

I am developing an dialog based application in embedded Visual C++ for an WIN CE 5.0 operated device, The application deals with Smart card so i have to use the WINSCARD.lib and functions such as SCardEstablishContext (), SCardConnect ()...etc.

i have downloaded Pocket PC 2003 SDk but it doesn't support WINSCARD.lib
when I try to build the solution in emulator (debug/release)i get an error as
error LNK2019: unresolved external symbol _SCardEstablishContext referenced in function "public: void __thiscall CVizzyDlg::OnDropdownCombo1(void)" (?OnDropdownCombo1@CVizzyDlg@@QAEXXZ)

if i try to build solution in ARM (debug/release) i get error as
errorLNK2111: Module Machine type 'THUMB' conflicts with target machine type 'ARM

So what is the correct SDK i have use that supports Winscard.lib or do i need to make some other change?

Thanks!

Re: Which SDK should I download?

zhanzongru19-Apr-09 22:32

zhanzongru

19-Apr-09 22:32

Perhaps you are using the incorrect version of the winscard.lib. There exist several versions under this name. Try to change the librarty search directory order to ensure you are use the correct one.

Hope helps.

Download

p_196019-Apr-09 21:27

p_1960

19-Apr-09 21:27

Hi ,
im unable to download demo project from..
"http://www.codeproject.com/KB/COM/CompleteActiveX.aspx"
Please help me out.....

Re: Download

_AnsHUMAN_ 19-Apr-09 21:31

_AnsHUMAN_

19-Apr-09 21:31

Please add a comment to the author under the article.

You need to google first, if you have "It's urgent please" mentioned in your question.
Wink | ;-)

_AnShUmAn_

Re: Download

Hamid_RT20-Apr-09 0:06

Hamid_RT

20-Apr-09 0:06

Well how can we help you at this forum?

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 )

Memory Leak

hhhakan19-Apr-09 21:17

hhhakan

19-Apr-09 21:17

Hello,

I have memory leaks in my application. I just open my application and close it, then I receive following messages.

<small>'ImageEditorGUI.exe': Loaded 'E:\Projects\ImageEditorApp\debug\ImageEditorGUI.exe', Symbols loaded.
'ImageEditorGUI.exe': Loaded 'C:\WINDOWS\system32\ntdll.dll', No symbols loaded.
'ImageEditorGUI.exe': Loaded 'C:\WINDOWS\system32\kernel32.dll', No symbols loaded.
'ImageEditorGUI.exe': Loaded 'C:\WINDOWS\system32\user32.dll', No symbols loaded.
'ImageEditorGUI.exe': Loaded 'C:\WINDOWS\system32\gdi32.dll', No symbols loaded.
'ImageEditorGUI.exe': Loaded 'C:\WINDOWS\system32\snmpapi.dll', No symbols loaded.
'ImageEditorGUI.exe': Loaded 'C:\WINDOWS\system32\msvcrt.dll', No symbols loaded.
'ImageEditorGUI.exe': Loaded 'C:\WINDOWS\system32\ws2_32.dll', No symbols loaded.
'ImageEditorGUI.exe': Loaded 'C:\WINDOWS\system32\ws2help.dll', No symbols loaded.
'ImageEditorGUI.exe': Loaded 'C:\WINDOWS\system32\advapi32.dll', No symbols loaded.
'ImageEditorGUI.exe': Loaded 'C:\WINDOWS\system32\rpcrt4.dll', No symbols loaded.
'ImageEditorGUI.exe': Loaded 'C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_6.0.2600.2180_x-ww_a84f1ff9\comctl32.dll', No symbols loaded.
'ImageEditorGUI.exe': Loaded 'C:\WINDOWS\system32\shlwapi.dll', No symbols loaded.
'ImageEditorGUI.exe': Loaded 'C:\WINDOWS\system32\wsock32.dll', No symbols loaded.
'ImageEditorGUI.exe': Loaded 'E:\LIBS\gdal-1.5.3\bin\gdal15.dll', Symbols loaded.
'ImageEditorGUI.exe': Loaded 'C:\WINDOWS\system32\odbc32.dll', No symbols loaded.
'ImageEditorGUI.exe': Loaded 'C:\WINDOWS\system32\shell32.dll', No symbols loaded.
'ImageEditorGUI.exe': Loaded 'C:\WINDOWS\system32\comdlg32.dll', No symbols loaded.
'ImageEditorGUI.exe': Loaded 'C:\WINDOWS\WinSxS\x86_Microsoft.VC80.DebugCRT_1fc8b3b9a1e18e3b_8.0.50727.42_x-ww_f75eb16c\msvcr80d.dll', Symbols loaded.
'ImageEditorGUI.exe': Loaded 'C:\WINDOWS\WinSxS\x86_Microsoft.VC80.DebugCRT_1fc8b3b9a1e18e3b_8.0.50727.42_x-ww_f75eb16c\msvcp80d.dll', Symbols loaded.
'ImageEditorGUI.exe': Loaded 'C:\WINDOWS\system32\oleaut32.dll', No symbols loaded.
'ImageEditorGUI.exe': Loaded 'C:\WINDOWS\system32\ole32.dll', No symbols loaded.
'ImageEditorGUI.exe': Loaded 'C:\WINDOWS\WinSxS\x86_Microsoft.VC80.DebugMFC_1fc8b3b9a1e18e3b_8.0.50727.42_x-ww_c8452471\mfc80ud.dll', Symbols loaded.
'ImageEditorGUI.exe': Loaded 'C:\WINDOWS\system32\msimg32.dll', No symbols loaded.
'ImageEditorGUI.exe': Loaded 'C:\WINDOWS\WinSxS\x86_Microsoft.Windows.GdiPlus_6595b64144ccf1df_1.0.2600.2180_x-ww_522f9f82\GdiPlus.dll', No symbols loaded.
'ImageEditorGUI.exe': Loaded 'C:\WINDOWS\system32\odbcint.dll', Binary was not built with debug information.
'ImageEditorGUI.exe': Loaded 'C:\WINDOWS\WinSxS\x86_Microsoft.VC80.MFCLOC_1fc8b3b9a1e18e3b_8.0.50727.762_x-ww_91481303\mfc80ENU.dll', Binary was not built with debug information.
'ImageEditorGUI.exe': Loaded 'C:\WINDOWS\system32\uxtheme.dll', No symbols loaded.
'ImageEditorGUI.exe': Loaded 'C:\WINDOWS\system32\MSCTF.dll', No symbols loaded.
Warning: no document names in string for template #129.
Warning: no document names in string for template #129.
Warning: no document names in string for template #129.
Detected memory leaks!
Dumping objects ->
{12394} normal block at 0x021E9240, 44 bytes long.
 Data: <  1   1   1   1 > 0C A2 31 01 0C A2 31 01 0C A2 31 01 0C A2 31 01 
{12388} normal block at 0x021E90D0, 8 bytes long.
 Data: <  1   1 > AC A1 31 01 AC A1 31 01 
{12384} normal block at 0x021E8F68, 116 bytes long.
 Data: <l 1="" l=""> 6C A1 31 01 6C A1 31 01 6C A1 31 01 6C A1 31 01 
{12378} normal block at 0x021E8B10, 28 bytes long.
 Data: <  1   1   1   1 > 0C A1 31 01 0C A1 31 01 0C A1 31 01 0C A1 31 01 
{12376} normal block at 0x021E8E10, 20 bytes long.
 Data: <  1   1   1   1 > E8 A0 31 01 E8 A0 31 01 E8 A0 31 01 E8 A0 31 01 
{12362} normal block at 0x021E76B8, 8 bytes long.
 Data: <  1   1 > BC 9F 31 01 BC 9F 31 01 
{12357} normal block at 0x021E1148, 8 bytes long.
 Data: <4 1 4 1 > 34 9F 31 01 34 9F 31 01 
{12345} normal block at 0x021DD7A0, 4 bytes long.
 Data: <  1 > EC 9A 31 01 
{12343} normal block at 0x021E3580, 32 bytes long.
 Data: <  1   1   1   1 > 8C 9A 31 01 8C 9A 31 01 8C 9A 31 01 8C 9A 31 01 
{12339} normal block at 0x021E6BB8, 12 bytes long.
 Data: <h 1="" h=""> 48 9A 31 01 48 9A 31 01 48 9A 31 01 
{12324} normal block at 0x021E6EC0, 4 bytes long.
 Data: <` 1 > 60 99 31 01 
{12322} normal block at 0x021E3168, 20 bytes long.
 Data: <@ 1 @ 1 @ 1 @ 1 > 40 99 31 01 40 99 31 01 40 99 31 01 40 99 31 01 
{12303} normal block at 0x021E77C0, 16 bytes long.
 Data: <  1   1   1   1 > F4 8F 31 01 F4 8F 31 01 F4 8F 31 01 F4 8F 31 01 
{12291} normal block at 0x021E6D60, 4 bytes long.
 Data: <( 1 > 28 8F 31 01 
{12285} normal block at 0x021E73E0, 44 bytes long.
 Data: <  1   1   1   1 > C0 8E 31 01 C0 8E 31 01 C0 8E 31 01 C0 8E 31 01 
{12271} normal block at 0x021DE0A8, 12 bytes long.
 Data: <t 1="" t=""> 54 8D 31 01 54 8D 31 01 54 8D 31 01 
{12265} normal block at 0x021E6F08, 12 bytes long.
 Data: <  1   1   1 > F0 8C 31 01 F0 8C 31 01 F0 8C 31 01 
{12249} normal block at 0x021E6C50, 20 bytes long.
 Data: <  1   1   1   1 > E0 8B 31 01 E0 8B 31 01 E0 8B 31 01 E0 8B 31 01 
{12241} normal block at 0x021E6A58, 4 bytes long.
 Data: <t 1=""> 54 8B 31 01 
{12239} normal block at 0x021E69B8, 4 bytes long.
 Data: <4 1 > 34 8B 31 01 
{12237} normal block at 0x021E13E0, 4 bytes long.
 Data: <  1 > 14 8B 31 01 
{12235} normal block at 0x021E5130, 4 bytes long.
 Data: <  1 > F4 8A 31 01 
{12233} normal block at 0x021E5420, 8 bytes long.
 Data: <  1   1 > F4 89 31 01 F4 89 31 01 
{12225} normal block at 0x021E61F0, 16 bytes long.
 Data: <l 1="" l=""> 6C 87 31 01 6C 87 31 01 6C 87 31 01 6C 87 31 01 
{12222} normal block at 0x021E0140, 4 bytes long.
 Data: <l 1=""> 6C 86 31 01 
{12216} normal block at 0x021E6550, 20 bytes long.
 Data: <  1   1   1   1 > C8 84 31 01 C8 84 31 01 C8 84 31 01 C8 84 31 01 
{12198} normal block at 0x021E37D8, 4 bytes long.
 Data: <p;1> 50 3B 31 01 
{12180} normal block at 0x021E5E10, 564 bytes long.
 Data: <  1 | 1 X 1   1 > 10 05 31 01 7C 05 31 01 58 07 31 01 D4 07 31 01 
{12175} normal block at 0x021E3D08, 12 bytes long.
 Data: < 71  71  71 > C0 37 31 01 C0 37 31 01 C0 37 31 01 
{12135} normal block at 0x021E5560, 20 bytes long.
 Data: <021 021 021 021 > 30 32 31 01 30 32 31 01 30 32 31 01 30 32 31 01 
{12125} normal block at 0x021E5320, 112 bytes long.
 Data: < 11  11  11  11 > 90 31 31 01 90 31 31 01 90 31 31 01 90 31 31 01 
{12067} normal block at 0x021E47C0, 32 bytes long.
 Data: < .1  .1  .1  .1 > 18 2E 31 01 18 2E 31 01 18 2E 31 01 18 2E 31 01 
{12059} normal block at 0x021E41F8, 8 bytes long.
 Data: < -1  -1 > 88 2D 31 01 88 2D 31 01 
{12058} normal block at 0x021E44D8, 16 bytes long.
 Data: < -1  -1  -1  -1 > 88 2D 31 01 88 2D 31 01 88 2D 31 01 88 2D 31 01 
{12046} normal block at 0x021E4350, 12 bytes long.
 Data: < *1  *1  *1 > DC 2A 31 01 DC 2A 31 01 DC 2A 31 01 
{12020} normal block at 0x021E3C60, 8 bytes long.
 Data: < )1  )1 > 18 29 31 01 18 29 31 01 
{11979} normal block at 0x021E1720, 4 bytes long.
 Data: < $1 > E0 24 31 01 
{11977} normal block at 0x021DF700, 20 bytes long.
 Data: < $1  $1  $1  $1 > 98 24 31 01 98 24 31 01 98 24 31 01 98 24 31 01 
{11976} normal block at 0x021DF6B8, 12 bytes long.
 Data: < $1  $1  $1 > 98 24 31 01 98 24 31 01 98 24 31 01 
{11964} normal block at 0x021E0038, 8 bytes long.
 Data: < #1  #1 > E8 23 31 01 E8 23 31 01 
{11963} normal block at 0x021DF9B0, 4 bytes long.
 Data: < #1 > E8 23 31 01 
{11961} normal block at 0x021E1B90, 8 bytes long.
 Data: < #1  #1 > C4 23 31 01 C4 23 31 01 
{11956} normal block at 0x021E0E28, 4 bytes long.
 Data: <|#1 > 7C 23 31 01 
{11922} normal block at 0x021DFFF0, 12 bytes long.
 Data: <  1   1   1 > E0 1F 31 01 E0 1F 31 01 E0 1F 31 01 
{11908} normal block at 0x021DEA58, 8 bytes long.
 Data: <  1   1 > B8 1E 31 01 B8 1E 31 01 
{11872} normal block at 0x021E02D0, 4 bytes long.
 Data: <  1 > 94 1B 31 01 
{11811} normal block at 0x021DFF18, 4 bytes long.
 Data: <  1 > DC 10 31 01 
{11807} normal block at 0x021DFFB0, 4 bytes long.
 Data: <  1 > 90 10 31 01 
{11803} normal block at 0x021DF0C0, 4 bytes long.
 Data: <d 1=""> 44 10 31 01 
{11798} normal block at 0x021DF870, 4 bytes long.
 Data: <$ 1 > 24 10 31 01 
{11785} normal block at 0x021DFA90, 4 bytes long.
 Data: <  1 > 04 0F 31 01 
{11783} normal block at 0x021DF9F0, 4 bytes long.
 Data: <  1 > E0 0E 31 01 
{11777} normal block at 0x021DF830, 4 bytes long.
 Data: <  1 > 84 0E 31 01 
{11773} normal block at 0x021DD840, 4 bytes long.
 Data: <@ 1 > 40 0E 31 01 
{11770} normal block at 0x021DE000, 4 bytes long.
 Data: <  1 > 18 0E 31 01 
{11764} normal block at 0x021DF378, 60 bytes long.
 Data: <  1   1   1   1 > D4 0D 31 01 D4 0D 31 01 D4 0D 31 01 D4 0D 31 01 
{11748} normal block at 0x021DEFB0, 20 bytes long.
 Data: <  1   1   1   1 > F0 0C 31 01 F0 0C 31 01 F0 0C 31 01 F0 0C 31 01 
{11671} normal block at 0x021DDE60, 8 bytes long.
 Data: <  1   1 > BC 07 31 01 BC 07 31 01 
{11643} normal block at 0x003FAB80, 52 bytes long.
 Data: <                > 00 00 00 00 CD CD CD CD 00 CD CD CD CD CD CD CD 
Object dump complete.
The program '[3236] ImageEditorGUI.exe: Native' has exited with code 0 (0x0).</d></l></l></t></t></h></l></small>

The memory allocation numbers do not change with each run. So I decided to use _crtBreakAlloc.

I start with F10, put {,,msvcr80d.dll}_crtBreakAlloc to watch window and assign memory allocation values from above message. But the program never stops Frown | :(

What can you suggest to find these memory leaks?

Thx in advance

Re: Memory Leak

KarstenK19-Apr-09 21:46

KarstenK

19-Apr-09 21:46

set the _crtBreakAlloc value at first in your program. Maybe you have set the value too late. Unsure | :~

Press F1 for help or google it.
Greetings from Germany

Re: Memory Leak [modified]

Stuart Dootson19-Apr-09 21:58

Stuart Dootson

19-Apr-09 21:58

I note that you're using MFC - try putting these lines in your stdafx.h before any #includes.

#if defined(DEBUG)
#define new DEBUG_NEW
#endif

That way, allocations are tracked slightly better - I get messages like this:

Detected memory leaks!
Dumping objects ->
d:\mycode\mydlg.cpp(228) : {442} normal block at 0x0034EF00, 4 bytes long.
 Data: <    > CD CD CD CD 
Object dump complete.

You can double-click on the d:\mycode\mydlg.cpp(228) : {442} normal block at 0x0034EF00, 4 bytes long. line and it will take you to the source that did the leaking allocation.

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

modified on Monday, April 20, 2009 7:07 AM

Can I overload operators in C?

Aakash Johari19-Apr-09 20:31

Aakash Johari

19-Apr-09 20:31

As we can overload operators in c++, the same can we do in c?

if there any way of doing it, please post.

i will appreciate any suggestion.

Re: Can I overload operators in C?

_AnsHUMAN_ 19-Apr-09 20:42

_AnsHUMAN_

19-Apr-09 20:42

no. operator overloading is a feature from OOPS.

You need to google first, if you have "It's urgent please" mentioned in your question.
Wink | ;-)

_AnShUmAn_

Re: Can I overload operators in C?

Aakash Johari19-Apr-09 20:59

Aakash Johari

19-Apr-09 20:59

Actually what I want is to construct my own float.
float16... actually...

which should be of following config;
float16
Bits Purpose
1 Sign of mantissa
2 – 32 Mantissa
33 Sign of exponent
34-128 Exponent of 10

and it should work similar to float,
as we do
float a;
float b;

float c = a + b;
hence here for my program concern i will have to do overloading...
float16 a;
float16 b;

float16 c = a + b;

any idea if u have, it will be a great help to me...
thanks great minds....

Re: Can I overload operators in C?

Cedric Moonen19-Apr-09 21:12

Cedric Moonen

19-Apr-09 21:12

In C++ this is possible but not in C. Remember that in C, you only have structures which can't have any member functions (only variables).
What you will need to do is define an external function which adds two float16:
float16 add(float16 val1, float16 val2)

And call this function when you want to add two float16:
float16 c = add(a, b);

Cédric Moonen
Software developer

Charting control [v2.0 - Updated]
OpenGL game tutorial in C++

Re: Can I overload operators in C?

Aakash Johari20-Apr-09 2:20

Aakash Johari

20-Apr-09 2:20

Can you please tell me any data structure that could contain 1 bit of data only. means can store only 0 or 1. because in the corresponding problem, i require a data structure that can contain atmost 1 bit of data.

Re: Can I overload operators in C?

CPallini19-Apr-09 21:13

CPallini

19-Apr-09 21:13

Aakash Johari wrote:
Actually what I want is to construct my own float.

Aakash Johari wrote:
any idea if u have,
it will be a great help to me...

Yes: use C++.

BTW:

Aakash Johari wrote:
1 Sign of mantissa
2 – 32 Mantissa
33 Sign of exponent
34-128 Exponent of 10

Are you sure it is a good idea?

Smile | :)

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: Can I overload operators in C?

Jijo.Raj19-Apr-09 20:43

Jijo.Raj

19-Apr-09 20:43

Hello Aakash,

Operator overloading doesn't exists in C.

Regards,
Jijo.

_____________________________________________________

http://weseetips.com[^] Visual C++ tips and tricks. Updated daily.

How do I check whether a share path exists?

SherTeks19-Apr-09 20:00

SherTeks

19-Apr-09 20:00

I know that a share path (say \\MycolleaguesmachineIP\\Ourshare\Projects ) exists.

How do I determine that it does exist, programmatically.

I came across NetShareEnum API but am not sure of its parameter values.

Any help in this regard or any other alternative would be appreciated .

Thanks in Advance

Re: How do I check whether a share path exists?

_AnsHUMAN_ 19-Apr-09 20:07

_AnsHUMAN_

19-Apr-09 20:07

NetShareGetInfo[^]
NetShareEnum sample code[^]

You need to google first, if you have "It's urgent please" mentioned in your question.
Wink | ;-)

_AnShUmAn_

Re: How do I check whether a share path exists?

Jijo.Raj19-Apr-09 20:46

Jijo.Raj

19-Apr-09 20:46

Hello Sherteks,

you can use - PathFileExists()[^] to check whether the specified file/directory exists.

Regards,
Jijo.

_____________________________________________________

http://weseetips.com[^] Visual C++ tips and tricks. Updated daily.

Files and Folder

Davitor19-Apr-09 18:37

Davitor

19-Apr-09 18:37

Hi All

How can i check files/folder is exits or not in paticular drive like c:\\?Plz help me

Re: Files and Folder [modified]

Jijo.Raj19-Apr-09 18:53

Jijo.Raj

19-Apr-09 18:53

Hello Davitor,

Misunderstood the question.

~~You can use this api - PathIsDirectoryEmpty()[^].~~

Regards,
Jijo.

_____________________________________________________

http://weseetips.com[^] Visual C++ tips and tricks. Updated daily.

modified on Monday, April 20, 2009 3:02 AM

Re: Files and Folder

vijay_aroli19-Apr-09 19:35

vijay_aroli

19-Apr-09 19:35

Check Out PathFileExists[^] API

Regards,
Vijay.

Re: Files and Folder

_AnsHUMAN_ 19-Apr-09 19:35

_AnsHUMAN_

19-Apr-09 19:35

You may use PathFileExists[^]

You need to google first, if you have "It's urgent please" mentioned in your question.
Wink | ;-)

_AnShUmAn_

Re: Files and Folder

Hamid_RT19-Apr-09 19:49

Hamid_RT

19-Apr-09 19:49

You can use of FindFirstFile.

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 )

auto closing messagebox

gamefreak229119-Apr-09 17:15

gamefreak2291

19-Apr-09 17:15

#include <windows.h>
int main ()
{
MessageBox(NULL, "Please do not press okay, just wait.", "Beginning", MB_EXCLAMATION);
return 0;
}

I would like to make this message box close on its own in 5 seconds.

Re: auto closing messagebox

N a v a n e e t h19-Apr-09 17:32

N a v a n e e t h

19-Apr-09 17:32

Auto-close message box[^] article may help. Smile | :)

Navaneeth

How to use google | Ask smart questions

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.