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Check the beginning of a typical cpp-file in a MFC-project, you'll see:
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
new is replaced by DEBUG_NEW when _DEBUG is defined. You can read about DEBUG_NEW on MSDN.
One easy way to get this functionality is to develop your console application in a MFC-enabled project, and when finished and tested, create a new console application and move the code over.
The best way to avoid leaks, however, is to make sure that each new is matched to a delete while developing. Then you won't need any special tools.
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Hi, I want to know how do I store all of the list box items into Access Database file?
Thanks
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get the string and list box and save in database  . Find how to save in database in the database section here at code project
Work hard and a bit of luck is the key to success.
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Hi, has anybody downloaded YM on Win 98. I was surprised to find out that YM changes the look of the "connect dialog" of IE when it wants to connect. I think YM used XP theme. But I thought that it isn't possible in Win 98. How was this done?
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Hi, has anybody downloaded YM on Win 98. I was surprised to find out that YM changes the look of the "connect dialog" of IE when it want's to connect. I think it used XP theme. But I thought that it isn't possible in Win 98. How was this done?
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If I know a block of memory is just the data of an icon, how can I get the handle of this icon?
<font=sans-serif>|-|3llo Wo|2ld
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Is the ICONINFO struct at the front of the memory block?
<font=sans-serif>|-|3llo Wo|2ld
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afxloadlibrary doesn't want to compile in my program. I'm writing and MFC app, and if I compile with the line:
hLibrary = AfxLoadLibrary(pathtodll);
I get a compiler error that AfxLoadLibrary is an undeclared identifier. If I use the global namespace, like so:
hLibrary = ::AfxLoadLibrary(pathtodll);
I get the error that AfxLoadLibrary isn't a member of the global namespace. The documentation says that AfxLoadLibrary IS a member of the global namespace, and if you type ::, when VC++ generates that LONG list of functions in the global namespace, AfxLoadLibrary DOES show up on that list. What's the deal? How do I get it working?
Thanks,
augy
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Sounds weird.
Did you try doing a "Rebuild All"? That usually fixes those kind of weird errors.
"You're obviously a superstar." - Christian Graus about me - 12 Feb '03
"Obviously ??? You're definitely a superstar!!!" mYkel - 21 Jun '04
Within you lies the power for good - Use it!
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Hmmm, didn't fix it. The errors were the exact same. Does anybody know what header file afxloadlibrary is declared in?
augy
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afxdll_.h
"You're obviously a superstar." - Christian Graus about me - 12 Feb '03
"Obviously ??? You're definitely a superstar!!!" mYkel - 21 Jun '04
Within you lies the power for good - Use it!
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Well, it compiles now, but the linker tells me that afxloadlibrary is an unresolved external. Is name mangling the problem?
augy
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You said your app was an MFC app, but it sounds to me like you have not included afx.h.
Afx.h will automatically include afxdll_.h plus link your app to all the lib files needed.
"You're obviously a superstar." - Christian Graus about me - 12 Feb '03
"Obviously ??? You're definitely a superstar!!!" mYkel - 21 Jun '04
Within you lies the power for good - Use it!
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this is just a simple c++ question. Ive already got this much of the program written. I just need seats first class seats to be full at 5 and economy at 10. I need it to prompt the user to enter y/n when one is full if the other section is ok. This is what i have so far
#include<iostream.h>
#include<stdlib.h>
int main()
{
void seatedr(int charted);
int plane[10];
int seated;
int firstclass=1;
int economy=6;
seated = 0;
for(int x=1; x<=5; x++)
{
if (plane[x] == 0)
{
plane[x] = 1;
seated = 1;
}
}
for(int i=1; i<=10; i++)
{
cout << endl;
cout << "Please type 1 for First Class" << endl;
cout << "Please Type 2 for Economy" << endl;
cin >> x;
if(x==1)
{
cout << "First Class seat : " << firstclass <
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Your question is quite unclear - and this goes for the code as well.
Let us assume that this is not an assignment question and you are actually trying to learn C++ on your own 
Have a class with the seat array as a member. Add functions to set a first- or second class seat, returning true or false depending on if it is possible or not. If the function returns false in your assigment loop, ask and try the other function.
The important thing - try to break the problem down into smaller pieces, think functions, not having one big loop doing it all, you'll never learn programming that way.
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Hello,
As a MFC newbie I am, it is with much frustration and also humbleness that I would like to know from one of you experienced programmers what the hell is going wrong with my program.
It happens that I have several custom controls operating in different dialog boxes (one per each) and in one of these I have a 7 segment (LCD) display outputting a 5 digit (signed) number.
There is no problem whatsoever unless you hover a dialog box over the one that contains the above referred 7 segment display control -- if it is painting at that particular time, it stops with a debug assertion, as, apparently there isn't a valid DC. Just before starting any graphical output, I attach the control's own DC, by means of calling GetDC(), set the viewport up, and at the end of the output, I simply Detach it.
I really don't know what's wrong... so if you could please lend me a hand or two, that would be great. (A finger would be enough, as I would be more than happy to know the direction to take )
Thanks,
David
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But Mike, can I ask you to explain me why you should use CPaintDC? I mean, what is the difference between using CDC or using the handle hDC you get from the PAINTSTRUCT that OnPaint provides you with?
By the way, many thanks for the reply.
David
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Basically, the function BeginPaint which is called by CPaintDC, prepares the DC with clipping regions, background brush, and hides the caret if there is one. See this[^] for more information.
--
Ich bin Joachim von Hassel, und ich bin Pilot der Bundeswehr.
Welle: Erdball - F104-G Starfighter
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Hi,
I have a few questions for you image processing developers out there. I am currently mapping a somewhat distorted (mostly skewed) image into a flat image plane. My Prof. told me to use Affine transformation to solve the problem. I first detect the corners of the parallelogram (distorted image) and use it as my anchors (A, B, C, D). My transformation matrix is:
| a b c |
| d e f |
| 0 0 1 | where a, b, c, d, e and f are matrix coefficents. The two zeros at the bottom means that there is little perpsective distortion so the values are not needed. At first, I tried to calculate the coefficents by simple linear alegbra.
| a b c | |Ax| |Ax'|
| d e f | |Ay| = |Ay'|
| 0 0 1 | |1 | |1 | where the Ax' and Ay' are the coordinates of the newly mapped space. A', B', C' and D' are the corners of the image space I am mapping to.
Since I know Ax, Ay, Ax' and Ay', I thought I would have more than enough information to solve the matrix. I did use that matrix but I starting getting warped images with coordinates off the plane. I realized there could be multiple solutions so I needed to use Least Squares approximation to find the best coefficients. But Least Squares seem to be very difficult to program and I havent found any code to help me.
Does anyone know of an efficient way to solve for the matrix coefficients? Or, if you have a better way to transform the image into another parameter space, please tell me. Any help is appreciated.
Thanks in advance!
Engineer in progress... ~wyoung
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Try looking into some of the code for robocup - many of the issues involved in correcting camera calibrations sound similar to the problems you are having, and there is a fair bit of code already available to solve those types of problems.
Numerical Recipes[^] Is the book you want if need / want to do the maths on your own.
If you can keep you head when all about you
Are losing theirs and blaming it on you;
If you can dream - and not make dreams your master;
If you can think - and not make thoughts you aim;
Yours is the Earth and everything that's in it.
Rudyard Kipling
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Hello guys, I'm looking for information about the AC-3 algorithmus and audio compression in general. Does anyone know any source of information?
Regards,
Alex
Don't try it, just do it! 
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