C / C++ / MFC Discussion Boards

Re: *off topic*

Eytukan20-Sep-05 4:52

Eytukan

20-Sep-05 4:52

ohh.. ok .. i felt i missed the bright organge colored text on few pages.. Smile | :)

Re: MFC help and tutorials

Trollslayer20-Sep-05 4:59

Trollslayer

20-Sep-05 4:59

It would be nice to be able to find aritcles by beginner/tutorial classification.

The tigress is here Big Grin | :-D

Re: MFC help and tutorials

toxcct20-Sep-05 5:02

toxcct

20-Sep-05 5:02

yeah, nice idea...

i let you suggest it to chris on the suggestions forum[^]...

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Re: MFC help and tutorials

Cedric Moonen20-Sep-05 3:41

Cedric Moonen

20-Sep-05 3:41

Codeproject ? Cool | :cool:

Re: MFC help and tutorials

David Crow20-Sep-05 5:42

David Crow

20-Sep-05 5:42

Have you seen the Scribble tutorial on MSDN? It starts from scratch and builds up to a very detailed application.

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

Re: MFC help and tutorials

Eytukan20-Sep-05 4:50

Eytukan

20-Sep-05 4:50

codeproject? no no.. let him go to Google first . its the best for all kind of needs.. for MFC google will take him to the best place on earth. Cool | :cool:

[edit]we'll meet him back here in five minutes[/edit]

regards,
V

Re: MFC help and tutorials

bugDanny20-Sep-05 5:59

bugDanny

20-Sep-05 5:59

Thanks, I'll take a look.

Danny

Re: MFC help and tutorials

Steen Krogsgaard22-Sep-05 0:19

Steen Krogsgaard

22-Sep-05 0:19

I know you didn't ask for a book, but I really think you should treat yourself with "MFC Internals" by George Shepherd and Scot Wingo. It's very old (1996), covers MFC 4.0 (many versions back) but it is still the bible of MFC programming. It covers all the fundamental functionalities of MFC and gives you an in-depth understanding of the framework. And MFC really haven't changed that much since 4.0. I regularly read it although I've been programming MFC for 10 years. You can get some used copies for about $7 at Amazon.

Another must-have book is "Programming Visual C++" by Kruglinski, Wingo and Shepherd, also available used at Amazon (<$5)

Cheers
Steen.

"To claim that computer games influence children is ridiculous. If Pacman had influenced children born in the 80'ies we would see a lot of youngsters running around in dark rooms eating pills while listening to monotonous music"

Re: MFC help and tutorials

bugDanny22-Sep-05 3:55

bugDanny

22-Sep-05 3:55

Thanks, I like to use books better actually. I've spent all my money for this month (literally), so I'll have to wait 'till next month to see if I have money, but I'll look into it.

Danny

Child control notification

abhi_code20-Sep-05 3:09

abhi_code

20-Sep-05 3:09

Hi all,

I have a dialog box which has rich-edit as child control inside it.

When i click inside the rich-edit box, focus is in the rich-edit.
Now when i press 'Tab' key from here, then text in rich-edit is highlighted.
But focus does not move outside rich-edit. Instead i want the focus to move to other controls in the main dialog, when i press 'Tab' key inside rich-edit.

Please suggest on how should i handle Tab key notification for rich-edit in this dialog.

Thanks in Advance

Abhijeet Jadhav

Re: Child control notification

prasad_som20-Sep-05 3:18

prasad_som

20-Sep-05 3:18

use LayOut-->TabOrder (ctrl+D) menu.
set ordering.

Re: Child control notification

abhi_code20-Sep-05 3:55

abhi_code

20-Sep-05 3:55

Hi prasad,

i have set tab-order appropriately.
But since rich-edit is a child control inside the dialog, on pressing tab control does not go outside rich-edit.

Please see if you find the solution.

Tell me if the problem is clear.

Thanks

Abhijeet Jadhav

Re: Child control notification

David Crow20-Sep-05 5:57

David Crow

20-Sep-05 5:57

The behavior you describe is not the default. You are doing something else in your code that is causing this behavior. To verify this, create a temporary dialog-based application, add a rich edit control to the dialog template, call AfxInitRichEdit() in InitInstance(), and run the application. Notice anything different?

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

To use dll classes

honae20-Sep-05 2:59

honae

20-Sep-05 2:59

How do i use functions that have been defined in a dll?

For example:
I built a ATL/Dll that has a class definition. This class has some methods and atributtes. How can i use that methods and atributtes in a other project?

I'm using Visual c++ 6.0;

I wait for reply!
Greatful!

Hélio

-- modified at 9:00 Tuesday 20th September, 2005

Re: To use dll classes

prasad_som20-Sep-05 3:14

prasad_som

20-Sep-05 3:14

refer http://www.codeproject.com/dll/beginnerdll.asp[^]

Re: To use dll classes

honae20-Sep-05 4:02

honae

20-Sep-05 4:02

unhappyly this article was not util for me

Re: To use dll classes

honae20-Sep-05 3:37

honae

20-Sep-05 3:37

I forgot to say that my dll is a ATL DLL

Re: To use dll classes

Alexander ^M.,20-Sep-05 8:42

Alexander ^M.,

20-Sep-05 8:42

You can either export the member functions with __declspec( dllexport ), or you convert the class to a COM interface which has get/set functions.

Don't try it, just do it! Wink | ;-)

A Bug in the land of construction???

Glenn Inman20-Sep-05 2:22

Glenn Inman

20-Sep-05 2:22

/* ** This is an interesting C++ bug, well I think it is a bug
*/
class CTest1
{
public:
BYTE* pbData;

public:
CTest1()
{
pbData = new BYTE[GetDataSize()];
}

virtual int GetDataSize()
{
return 16;
}
};

class CTest2 : public CTest1
{
CTest2() : CTest1()
{
}

virtual int GetDataSize()
{
return 32;
}

};

/*
** when CTest2 is created you would expect a buffer of 32 bytes to be allocated
** but lo and behold, you get 16, try it
**
** in c# they got it right, try the same experiment and you will get 32 allocated in CTest2
*/

public class CTest1
{
public byte[] abyData = null;
public CTest1()
{
abyData = new byte[DataSize];
}

virtual int DataSize
{
get{return 16;}
}
}

public class CTest2 : CTest1
{
override int DataSize
{
get{return 32;}
}
}

Re: A Bug in the land of construction???

prasad_som20-Sep-05 2:42

prasad_som

20-Sep-05 2:42

Vtable initiazation takes place in constructor of base class,its obvious that base class function will get called

Re: A Bug in the land of construction???

Nemanja Trifunovic20-Sep-05 2:50

Nemanja Trifunovic

20-Sep-05 2:50

Simply, C++ has a different order of construction than C# or Java. It was a design decision, not a bug.

Take a look at this article[^] for more details.

My programming blahblahblah blog. If you ever find anything useful here, please let me know to remove it.

OPOS DRIVER - OCX and DLL

honae20-Sep-05 2:18

honae

20-Sep-05 2:18

I am in a project that aims to build a opos driver, a species of intermediary between application and opos devices that support the standard. The opos driver is divided in two parts: The Control Object(CO), that makes the interface with application and the Service Object(SO), that makes the interface with the devices. The CO makes methods calls in the SO.
My problem is the following one: The CO are ActiveX controls(ocx) and SO are dlls. I am not knowing that type of project I must create in the Visaul c++ and how do I link the CO and the SO? I need them( ocx and dll) will be invisible at runtime. I would like that somebody help about that. Somekind of help is welcome. I wait reply! Grateful! Helio

P.S.: for more information about opos standard "monroecs.com/opos.htm"

C++ related question

Ahsan Askare20-Sep-05 0:55

Ahsan Askare

20-Sep-05 0:55

Friends there are two simple C++ classes Car and Engine. I am getting the following error in the function Start of class Engine

d:\Car\Car.cpp(19): error C2027: use of undefined type 'Car'

Please tell me why i am getting this error. Code is here:

class Car; // Forward Declaration

class Engine
{
public:

	Engine(Car *pCar)
	{
	  m_pCar = new Car();
	}

	void Start()
	{
	  m_pCar->OnStart();  // ERROR HERE: use of undefined type 'Car'
	}

private:

    Car *m_pCar;
};


class Car
{
  public:

	Car()
	{
	}

	void OnStart()
	{
  	}

};

Ahsan

Re: C++ related question

toxcct20-Sep-05 1:00

toxcct

20-Sep-05 1:00

you must declare class Car before using it...

precede your class Engine definition with : class Car;

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Re: C++ related question

Bob Stanneveld20-Sep-05 1:02

Bob Stanneveld

20-Sep-05 1:02

You beat me!

Anyway, he declared the class Car before he used it. You must define the class before you try to use it however. Smile | :)

Behind every great black man...
... is the police. - Conspiracy brother

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