Re: What is the rwson behind this - C / C++ / MFC Discussion Boards

kanetheterrible15-Jun-04 21:56

5-Jun-04 21:56

i did soemthing like this using API hooks.study Ivo Ivanov's API hooking revealed for more info.
Hope it helps Smile | :)

Regards
Kane

"Some guys hack just to get themselves a girlfriend.What a pathetic reason, huh ?"

Re: Password protecting other apps

Archer2826-Jun-04 8:08

Archer282

6-Jun-04 8:08

what i would do, is look for windows with those classname and titles of the windows you wish to protect, (you can use Spy++ to get them)

then hide them using the Showwindow() function
and bring up your password dialog
if they enter the right password show the window/s again using ShowWindow()

Re: Password protecting other apps

David Crow7-Jun-04 5:40

David Crow

7-Jun-04 5:40

Anonymous wrote:
...when one of these apps is launched my app would open first...

You might see about modifying the HKEY_CLASSES_ROOT\exefile\shell\open\command registry key. Change the (Default) value to myprog.exe "%1" %* and see if that works.

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

Re: Password protecting other apps

Anonymous8-Jun-04 6:34

Anonymous

8-Jun-04 6:34

A big thank you to everyone!

--bacon

What is the rwson behind this

Billar5-Jun-04 20:21

Billar

5-Jun-04 20:21

Dear Friend,

My application works fine in Release mode but it gives an error or displays an abort dialog when I close window in Debug mode.

Please write to me the reason behind this.

Thanking you in advance....

Billar

Re: What is the rwson behind this

kanetheterrible15-Jun-04 21:59

kanetheterrible1

5-Jun-04 21:59

maybe it;s giving an assertion error.then is shud give a message like "assertion failed in file so and so in line so and so " .Open up the file and read up that line.Maybe you have done something illegal....

Regards
kane

"Some guys hack just to get themselves a girlfriend.What a pathetic reason, huh? "

Re: What is the rwson behind this

Johan Rosengren5-Jun-04 22:00

Johan Rosengren

5-Jun-04 22:00

Billar wrote:
Please write to me the reason behind this.

*laughter*
Probably because you have a bug. Without a description of any kind, however, it's quite difficult to know what the problem might be...

Re: What is the rwson behind this

Neville Franks5-Jun-04 23:29

Neville Franks

5-Jun-04 23:29

Johan Rosengren wrote:
*laughter*
Probably because you have a bug. Without a description of any kind, however, it's quite difficult to know what the problem might be...

Rose | [Rose]

It seems to be a worrying trend that some folks think that just because a program doesn't crash it "works fine". He should consider himself lucky the problem shows itself in a debug build and not just the other way around.;)

Neville Franks, Author of ED for Windows www.getsoft.com and coming soon: Surfulater www.surfulater.com

Re: What is the reason behind this

David Crow7-Jun-04 2:37

David Crow

7-Jun-04 2:37

See if this article helps.

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

Re: What is the reason behind this

Billar7-Jun-04 2:47

Billar

7-Jun-04 2:47

DEar Friends,

I got the solution. Actually the problem was in the attached lib file. After linking the another or seperate .lib file seperately in Release/Debug mode, problem get solved.

Anyway thanks for your kind co-operation.

Bye

Billar

Memory leak problem

raed5-Jun-04 19:59

raed

5-Jun-04 19:59

dears:
In the following function both Visual C++ 6 and (Insure++ software that detecting memory leaks and bugs) pointing that there are a memory leak in this statement in this function

Since
*CWorkAreaWnd derived from CWnd.
*CDrawObject Derived from CObject and it is the base class for all objects(Shapes here).
* and CDrawObject has m_ObjTracker member function of Type CRectTracker.

code:--------------------------------------------------------------------------------
void CWorkAreaWnd:rawTracker(CDrawObject *pDrawObject , POINT point )
{
/*
** Create Tracker for the selected object.
*/
CPoint n = point ;
CDrawEditor32App * pApp = (CDrawEditor32App*)AfxGetApp();

CDrawEditor32Doc *pDoc = pView->GetDocument();

CRect rect ,objectRect = pDrawObject->getObjectRect();
if (pDrawObject->m_ObjTracker)
{

pDrawObject->m_ObjTracker = NULL;
delete pDrawObject->m_ObjTracker;
}
//////////////////////////////////////////////////////////////////////////////////
pDrawObject->m_ObjTracker = (CTrackerObj *)new CTrackerObj(objectRect,CRectTracker::dottedLine |CRectTracker::resizeInside |CRectTracker::resizeOutside );
//Here compiler and Insure indicate memory leak
/////////////////////////////////////////////////////////////////////////////////
if ((pDrawObject->m_ObjTracker))
{

if(!bArrowKey && !pDoc->pDrawClass->bMultiSelection)
pDrawObject->m_ObjTracker->Track(this, point, TRUE );
else
pDoc->m_Change = TRUE;
pDrawObject->m_ObjTracker->m_rect.NormalizeRect();

CRect TakerRect = pDrawObject->m_ObjTracker->m_rect;
if(!objectRect.EqualRect(TakerRect))
{
rect = pDrawObject->CalculateDimensionRect(TakerRect);
pDrawObject->setObjectRect(rect);
}

}

}
--------------------------------------------------------------------------------

but the problem if i add this at the end of the Fucntion
-------------------------------------------------------
code:
delete pDrawObject->m_ObjTracker;
-------------------------------------------------------------

the program will crash when draw something in screen .
where is the right place to perform free memory in this case?

and why crashing occured since i free memory before the scope of the fucntion end up.

Thanks

Re: Memory leak problem

Johan Rosengren5-Jun-04 21:35

Johan Rosengren

5-Jun-04 21:35

You might get the crash if you don't set pDrawObject->m_ObjTracker to NULL at the end. You will most probably have forgotten to add a delete in the destructor as well Smile | :)

You can, however, make the DrawObject class manage its own memory. Add a function CreateTracker instead of allocating memory in the calling function. In CreateTracker, delete the old tracker if it exists and create a new one with new. Make sure to delete the tracker in the DrawObject destructor.

You are making a maintenance nightmare for yourself by allocating part of a class outside the class, naughty, naughty, naughty *slap on wrist*

Re: Memory leak problem

raed7-Jun-04 7:59

raed

7-Jun-04 7:59

dear:
I got ur point and u r completely right, it is a big nightmare to locate var in calling fucntion, I'm changing the code as u said.

Thanks

Fingerprints

BaldwinMartin5-Jun-04 18:57

BaldwinMartin

5-Jun-04 18:57

Anyone know how to write a getProcessor ID and getProcessor String?

"Naked we come and bruised we go."
- James Douglas Morrison

Best Wishes,
ez_way

Re: Fingerprints

User 66586-Jun-04 0:11

User 6658

6-Jun-04 0:11

Take a look at this

regards

modified 12-Sep-18 21:01pm.

Re: Fingerprints

BaldwinMartin6-Jun-04 2:53

BaldwinMartin

6-Jun-04 2:53

Great answer that you very much1

"Naked we come and bruised we go."
- James Douglas Morrison

Best Wishes,
ez_way

Reading/Writing Files

gabuchholz5-Jun-04 17:19

gabuchholz

5-Jun-04 17:19

Hi, I have created a simple tetris game for a school project alogn with some firends. I currently am having a dilema. I have two problems. One has to do with the topic of this message; I am trying to write the score of the game when ever the score of the current game is higher than the score in the file. So if I played and got 1000 points then died it woudl write 1000 to a file (points.txt), and if you played after and got over 1000 it would override my score with yours, but if you got less it wouldnt... Afterwards I want to read the file and output the score within on the score as "highscore: ___". So how do I do this? Source require please... visual is new to me...I'm used to dev c++. I am lookign for a simple way of reading and writing (like adding a .h and calling on one of its functions to read or write). I know abotu fstream but I cant seem to get it to work..

P.S) the second this I was having problems with is I am lookign for a pause function....but that can wait.

Thanks in advanced
Glen Buchholz

Re: Reading/Writing Files

palbano5-Jun-04 17:52

palbano

5-Jun-04 17:52

>> I know abotu fstream but I cant seem to get it to work..

Your in a school C++ course and no one can show you how to get fstream working? What school is it?

unsigned long score = 0L;

std::ofstream os("sample.txt");
score = 1000;
os << score;
os.close();

std::ifstream is("sample.txt");
is >> score;
is.close();

>. I am lookign for a pause function

::Sleep( 5000); // sleep for 5 seconds

"No matter where you go, there your are." - Buckaroo Banzai

-pete

Re: Reading/Writing Files

gabuchholz5-Jun-04 18:09

gabuchholz

5-Jun-04 18:09

Thanx, so much.
Got it working perfectly Blush | :O

P.S) Its a high school and we do things in Dev C++... which we had fstream workign in...vc++ is a bit different... WTF | :WTF:

Screen Resolution

Renjith Ramachandran5-Jun-04 17:07

Renjith Ramachandran

5-Jun-04 17:07

All resources of my application is designed in 1024 * 768 pixels resolution ,
after changing the resolution in to standard 800 * 600, some of the screen is beyond the visible area. i want to change my application in a manner that that must work in any resolution ( i found some applications do this very nicely ).
is there any code to do this?

and one more thing, how can i get the current resolution of screen and how can i change that by code?

Thankyou

I want to change Myself..Can u help me? Smile | :)

Re: Screen Resolution

palbano5-Jun-04 17:32

palbano

5-Jun-04 17:32

Well the main stream approach to building desktop applications is to use windowing techniques to avoid any specific screen resolution dependencies. If I ever installed a desktop application that changed my screen resolution on me I would get rid of it faster than you can say “bite me”.

With that said here is a controversial article to that end:

http://www.codeproject.com/gdi/screenresolution.asp[^]

"No matter where you go, there your are." - Buckaroo Banzai

-pete

Re: Screen Resolution

Renjith Ramachandran6-Jun-04 5:16

Renjith Ramachandran

6-Jun-04 5:16

i want an API/code for changing to any resolution that supported by my graphics card.

thank you.

I want to change Myself..Can u help me? Smile | :)

Re: Screen Resolution

User 66586-Jun-04 7:30

User 6658

6-Jun-04 7:30

ChangeDisplaySettings is what you want.

modified 12-Sep-18 21:01pm.

Re: Screen Resolution

alex.barylski5-Jun-04 18:32

alex.barylski

5-Jun-04 18:32

Just a guess, but I would figure you'd find the screen dimensions inside GetSystemMetrics

How do I print my voice mail?

PropertyPage, OnInitDialog, and SetFocus

PJ Arends5-Jun-04 14:25

PJ Arends

5-Jun-04 14:25

Hey All,

I am having a small problem setting the focus to a control on a property page in my OnInitDialog() function.

BOOL CPage::OnInitDialog()
{
    CPropertyPage::OnInitDialog();
<snip>
    if (some_condition)
    {
        m_Edit.SetReadOnly();
        m_ComboBox.SetFocus();
    }
    else
        m_Edit.SetFocus();
 
    return FALSE;  // return TRUE unless you set the focus to a control
}

It does not matter if some_condition is TRUE or FALSE, the m_Edit control always has the input focus. m_Edit is the first control in the tab order. Does returning FALSE from OnInitDialog() not work for property pages, or am I missing something?

Sonork 100.11743 Chicken Little

"You're obviously a superstar." - Christian Graus about me - 12 Feb '03

Within you lies the power for good - Use it!

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