Re: memory leaks - C / C++ / MFC Discussion Boards

hrishiS4-Sep-09 2:22

4-Sep-09 2:22

Hi
I want to change the "if and else" statement of the following code in to a different fashion,(not with if and else ladder)

what i want to achieve with the code is: Any one of the pointers (p1,p2,p3) will be non NULL...at any given time. (For the time being I am hard-coding with the address of value i, but in actual I may be passing the i value to the function) Others will be NULL for sure...i need to check which is not NULL...that's it

Note: I would be using dynamic_cast, to assign the i value later..... [dynamic_cast returns 0, if cast was not happened ]

int i=10;
int *p1=NULL;
int *p2=&i;
int *p3=NULL;
if(p1!=NULL)
{
printf("\n\np1");
}
else if(p2!=NULL)
{
printf("\n\np2");
}
else if(p3!=NULL)
{
printf("\n\np3");
}
else
{
printf("\n\nnone");
}

thanks

-----------------------------
I am a beginner

Re: converting if else

David Crow4-Sep-09 3:13

David Crow

4-Sep-09 3:13

hrishiS wrote:
I want to change the "if and else" statement of the following code in to a different fashion,(not with if and else ladder)

And what other way of checking variables against NULL did you have in mind?

"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

Re: converting if else

Iain Clarke, Warrior Programmer4-Sep-09 3:14

Iain Clarke, Warrior Programmer

4-Sep-09 3:14

That looks a lot like the original question. David is one of our best answerers. If you want his help, and he asks you a question.... You should answer it, or give up on people helping you.

Iain.

I have now moved to Sweden for love (awwww).
If you're in Scandinavia and want an MVP on the payroll (or happy with a remote worker), or need cotract work done, give me a job! http://cv.imcsoft.co.uk/[^]

Re: converting if else

bob169724-Sep-09 4:17

bob16972

4-Sep-09 4:17

Iain Clarke, Warrior Programmer wrote:
and he asks you a question.... You should answer it

Or more often than not, his questions are the answers.
(I like his style) Smile | :)

Re: converting if else ladder

Joe Woodbury4-Sep-09 8:22

Joe Woodbury

4-Sep-09 8:22

printf("\n\n%s", p1 ? "p1" : (p2 ? "p2" : (p3 ? "p3" : "none")));

memory leaks

Agavriloaie Constantin3-Sep-09 23:06

Agavriloaie Constantin

3-Sep-09 23:06

Hi friends,
We develop an application under MSVC++ 2005 and now my task is to remove the memory leaks. In fact I found some problems especially “new” and “delete” instructions that aren’t paired and also some cases when they was inappropriate used. The main problem is the memory used by the app. When I run it multiply time the total used memory reported by Windows Task Manager increases (between two playing the difference of memories isn’t the same in generally). I suspect that the problem isn’t memory leaks. Can u help me with any advice?

Also as memory leaks I have some reported by MSVC library, how can I identify the exactly cause in my source for these, e.g:
f:\rtm\vctools\vc7libs\ship\atlmfc\src\mfc\map_pp.cpp(69): 68 bytes, allocating 'Normal' block (#155028)
f:\rtm\vctools\vc7libs\ship\atlmfc\src\mfc\plex.cpp(29): 124 bytes, allocating 'Normal' block (#155030)
f:\rtm\vctools\vc7libs\ship\atlmfc\src\mfc\map_pp.cpp(69): 68 bytes, allocating 'Normal' block (#274094)

Thanks in advance for your support

costica

Re: memory leaks

iraclyKv4-Sep-09 2:13

iraclyKv

4-Sep-09 2:13

In this situation MemoryValidator,BoundsChecker or alike developer tools may help. Try trial for free.

Re: memory leaks

Agavriloaie Constantin4-Sep-09 3:29

Agavriloaie Constantin

4-Sep-09 3:29

Thanks, I tried a lot of memory leaks detector software (included those indicated by you) but they did't give me useful information, this is the cause that make me to think that the memory increse when I "Play" multiple time has another cause.

Re: memory leaks

David Crow4-Sep-09 2:17

David Crow

4-Sep-09 2:17

Agavriloaie Constantin wrote:
When I run it multiply time the total used memory reported by Windows Task Manager...

The numbers from TM are not telling you how much memory your program is consuming. They are the amount of address space that is in use, which will be less than the amount of address space your program is actually using.

Re: memory leaks

Agavriloaie Constantin4-Sep-09 3:25

Agavriloaie Constantin

4-Sep-09 3:25

Thanks David, maybe u are right, can you give me more info about this, it is the fist time when I heard about it (TM ). How can i find the exactly amount of memory used by app?
have a nice wked

Re: memory leaks

David Crow4-Sep-09 3:43

David Crow

4-Sep-09 3:43

Maybe the Performance Monitor has something you can use (e.g., Process(yourprocess)\Private Bytes).

any body have codejock skin?

zhanghui54323-Sep-09 21:53

zhanghui5432

3-Sep-09 21:53

I want to load a codejock skin,but not msstyles,
Does any body have and would like to share it?

Re: any body have codejock skin?

Rajesh R Subramanian4-Sep-09 0:38

Rajesh R Subramanian

4-Sep-09 0:38

You'll have to buy something that's sold for money. Nobody here is going to share it with you.

However, you could take a look at The Ultimate Toolbox Application Skins[^], which is free for use.

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

Saving icon to PNG file (GDI+)?

akirilov3-Sep-09 21:40

akirilov

3-Sep-09 21:40

Hi guys,

I'm trying to make a routine that save an icon (HICON) to png file with GDI+

Bitmap* bmp = new Bitmap(icon);
GetEncoderClsid(L"image/png", &encoderClsid);
bmp->Save(L"xxx.png", &encoderClsid, NULL);

So far so good. But when I open the png ... it is not transluctant (semi transparent).
Any ideas why???
And I found that GDI+ has A LOT of problems with icons Frown | :(

P.S. If you have another suggestion how to do this, please share fragment of code.

Re: Saving icon to PNG file (GDI+)?

Richard MacCutchan4-Sep-09 5:51

Richard MacCutchan

4-Sep-09 5:51

I'm not sure that you can do this directly as you suggest. Icons are 'special' file types that Windows understands and paints in a slightly different manner to ordinary bitmaps. Take a look at Icons in MSDN for more information.

Re: Saving icon to PNG file (GDI+)?

akirilov6-Sep-09 20:22

akirilov

6-Sep-09 20:22

Is my question so hard? Nobody had similar experience? Cry | :((

Re: Saving icon to PNG file (GDI+)?

kilt7-Sep-09 5:04

kilt

7-Sep-09 5:04

It has been answered many years ago on Google (Groups), Win32

Re: Saving icon to PNG file (GDI+)?

akirilov7-Sep-09 23:38

akirilov

7-Sep-09 23:38

Could share direct link? I'm no a member of these groups?

help needed for PTZ control

rajapp3-Sep-09 20:59

rajapp

3-Sep-09 20:59

hi,
I am working on a PTZ camera, and successfully accessed the pan/tilt/up/down..zoom/focus and iris features.
now i am stuckup with the query commands and response.
protocol is pelco D and i want to send the query pan position(0x51) to the camera and the camera have to respond me back with
query pan position response(0x59)... if anybody worked on these stuffs please help me...

Re: help needed for PTZ control

hkaratoy24-Nov-09 4:23

hkaratoy

24-Nov-09 4:23

Hey rajapp,

If you find any solution please share it with us because we have same problem as you....

if you contact please send mesaage to "hkaratoy@gmail.com"

Re: help needed for PTZ control

sidxavier11-May-10 11:30

sidxavier1

1-May-10 11:30

hey ppl were any of you able to solve this problem?? i am stuck too Frown | :(

Model less dialog

MsmVc3-Sep-09 20:46

MsmVc

3-Sep-09 20:46

Hi All
I am gatting problem to destroy Model less dialog.
I have a Dialog A and insert dialog B(Model less dialog).I dialog A call model less dialog like this

CDialogB* m_modell

(In Dialog A cpp class).Create model less dialog in Dialog A cpp class like this

m_modell= new CDialogB(this);
m_modell-&gt;Create(CDialogB::IDD,this);

Now i have a thread WorkerThreadProc.In the WorkerThreadProc i use to show model less dialog

m_modell->ShowWindow(SW_SHOW);

It's working fine but how i destory model less dialog.
plz help me

Re: Model less dialog

Randor 3-Sep-09 20:50

Randor

3-Sep-09 20:50

INFO: Creating a Modeless Dialog Box with MFC Libraries[^]

Best Wishes,
-David Delaune

Re: Model less dialog

MsmVc3-Sep-09 21:00

MsmVc

3-Sep-09 21:00

thank for reply but try to understand my problem.
I know how to create but i have a problem to destroywindow(Model less dialog).

Re: Model less dialog

Randor 3-Sep-09 21:07

Randor

3-Sep-09 21:07

MsmVc wrote:
I know how to create but i have a problem to destroywindow

The link I provided shows how to properly destroy the modeless dialog. Have you tried it?

Best Wishes,
-David Delaune

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