C / C++ / MFC

9-Mar-01 3:53

1) VC6 (no service packs applied I don't think - installed from MSDN January 2001 Enterpise CD's)

2) Windows 2000/SP1

3) Our app is an MFC MDI app with MFC is staticaly linked. I'm trying to embed a CPropertySheetEx in a dialog box. In Debug mode, it works fine, but in release it doesn't.

4) This code works on Windows 98 AND Windows NT 4 (SP5-6a) in both release and Debug modes.

5) It fails when I call the Create function in CPropertySheetEx, but since I'm in release mode, I can't trace into the code.

6) Do I have to install a VC6 service pack to fix this?

If anyone can provide any hints, tips, experiences or other helpful tidbits, I'd love to hear about it. Send mail here:

john.simmons@brooks.af.mil

Many thanks in advance.

l a u r e n9-Mar-01 20:42

l a u r e n

9-Mar-01 20:42

hey john
i would strongly recommend applying service pack 4 at least (prolly 5 if you can get it) ... if the problem still persists it might be something more fundamental

---
"every year we invent better idiot proof systems and every year they invent better idiots"

#realJSOP12-Mar-01 2:34

12-Mar-01 2:34

Applied service pack 4 after leaving the original message. No change. We had to deliver a laptop (wint Win2K installed) with the application on it and were running through all the dialogs. This dialog crashed the app. Since we had to deliver the machine on Friday, and in anticipation of not getting an answer in team through this forum, we re-wrote the dialog to not use tabs (took about an hour).

I am still curious as to why this wouldn't work on Win2k, but works everywhere else.

Since there's a moderate amount of source code involved, maybe I could post this as an article and let everybody else have a stab at it too.

Tim Deveaux10-Mar-01 12:54

Tim Deveaux

10-Mar-01 12:54

> but since I'm in release mode, I can't trace into the code.

Go to the project settings for the Release build. In the C++ (General Category) select Program Database for Debug Info. Next, in the Link tab (also General) check the Generate Debug Info box.

You may not be able to see things as well in the watch window, but at least you'll be able to see code and call stack. This is a great help for dealing with the effects of optimizations, uninitialized vars etc.

#realJSOP12-Mar-01 2:37

12-Mar-01 2:37

Thanks - I'll try that.

#realJSOP12-Mar-01 9:56

12-Mar-01 9:56

Well, I wrote a little test app that includes only the code necessary to build a dialog box with an embedded property sheet, and ran it on three windows 2000 systems. It worked on every one of them. This leads me to the conclusion that it's something else in the app that's crashing when the dialog box in question is being initialized.

"Good thing" - It wasn't my dialog box code that was causing the problem

"Bad thing" - I still don't know what the problem actually is yet.

Grrrr...

8-Mar-01 22:11

What is the difference between ADO and ADODB?
Thanks.

8-Mar-01 22:11

What is the difference between ADO and ADODB?
Thanks.

8-Mar-01 22:11

What is the difference between ADO and ADODB?
Thanks.

Button Coordinates in ClientRect

8-Mar-01 22:10

What is the difference between ADO and ADODB?
Thanks.

Process Infomation

8-Mar-01 20:13

Hi,guys
There's a question troubled me for a long while,that is
How can I know a process is RUNNING or NOT RESPONDING in my program,using Visual c++?
anyone can supply useful info is appriciate

Re: Process Infomation

l a u r e n8-Mar-01 21:06

l a u r e n

8-Mar-01 21:06

thought i posted an answer to this when you originally posted the question
Suspicious | :suss:

---
"every year we invent better idiot proof systems and every year they invent better idiots"

Re: Process Infomation

Tim Deveaux10-Mar-01 13:07

Tim Deveaux

10-Mar-01 13:07

You might check out the docs for SendMessageTimeout. Looks to me like this might be the method Task Manager uses to send an initial WM_CLOSE to a process' main window. All you're really checking for here is if the message pump is pumping - if the app is just dutifully computing the first 23 gazillion digits of e, it will appear hung.

8-Mar-01 17:46

This is probably really easy .. but here goes

I have a CButton object in my dialog application and I have the x,y,x2,y2 coordinates of the actual dialog application but need to find out what the x,y coordinates of the top/left of the button object. How is this done?

Thanks in advance,

Re: Button Coordinates in ClientRect

Christian Graus8-Mar-01 18:05

Christian Graus

8-Mar-01 18:05

If you have a variable to the button

CRect rc;
m_myButton.GetWindowRect(&rc);

otherwise

CRect rc;
GetDlgItem(IDC_MYBUTTON)->GetWindowRect(&rc);

I believe this comes in co-ordinates relative to the dialog, in which case ClientToScreen will five you screen co-ords. If I am wrong, ScreenToClient gives you client co-ords.

Christian

The content of this post is not necessarily the opinion of my yadda yadda yadda.

To understand recursion, we must first understand recursion.

Overriding function main()?

Jason Gerard8-Mar-01 14:47

Jason Gerard

8-Mar-01 14:47

Ok. I'm a VB/(wannabe Java/C#) programmer so don't flame me. I'm in a C++ class in college and my professor gave the class an odd assignment. I have no clue where to begin. Here is the problem:
Given the program:

#include <iostream.h>
main () {
cout<<” Hello, World\n”;
}

Modify it to produce the output:
Initialize
Hello, World
Clean up

Do not change main () in any way.

Now this is blowing my mind. Confused | :confused:

He said there was a way to override the main function but I do not see how. Any help would be greatly appreciated. Thanks. Smile | :)

MCSD, MCSE

Michael Dunn8-Mar-01 15:58

Michael Dunn

8-Mar-01 15:58

You don't overload (that's the term, not override) main(), you just write it. Hmmm | :|

THe way I'd do it is make a class with a constructor that prints "Initialize" and a destructor that prints "Clean up" and declare a global variable of that class. Globals are constructed before main() is called, and destructed after it returns.

--Mike--
http://home.inreach.com/mdunn/
I'm finger-lickin' good!

Jason Gerard8-Mar-01 16:59

Jason Gerard

8-Mar-01 16:59

I meant overload, I'm always interchanging them by accident. Anyway, my teacher's English is not very good and I posted this during class. I talked with him and a few students and we all misunderstood him. Apparently, he wants us to somehow derive from ostream or streambuf and overload operator<< for cout. Not quite sure how but that is what he said. Thanks for the help.

However, I tried your approach but the destructor is never called.

Here is the output:

Initialize
Hello, World
Press any key to continue

Here are some code snippets:

//MyClass.h

class MyClass
{
public:
MyClass();
~MyClass();

};

//MyClass.cpp

MyClass::MyClass()
{cout << "Initialize\n";}

MyClass::~MyClass()
{cout << "Clean up\n";}

// test.cpp

#include <iostream>
#include "MyClass.h"
using namespace std;
MyClass myClass = MyClass();
int main()
{
cout << "Hello, World\n";
return 0;
}

MCSD, MCSE

Christian Graus8-Mar-01 17:16

Christian Graus

8-Mar-01 17:16

I was in the process of coming up with a similar response when I saw Michaels reply, so I jumped into VC to give it a try, and the following

#include <iostream.h>

class MyClass
{
public:
MyClass() {cout << "Initialize\n";};

~MyClass() {cout << "Clean up\n";};
};

MyClass myClass = MyClass();

int main()
{
cout << "Hello, World\n";
return 0;
}

worked fine for me. I don't believe myClass needs to be defined, but I left it that way ;0)

Christian

The content of this post is not necessarily the opinion of my yadda yadda yadda.

To understand recursion, we must first understand recursion.