C / C++ / MFC

Hamid_RT2-Aug-07 2:40

Hamid_RT

2-Aug-07 2:40

Which functions?

WhiteSky

toxcct2-Aug-07 2:43

toxcct

2-Aug-07 2:43

WTF is the problem with you buddy ?

i thought you had understood last day when we asked you to be polite ! Mad | :mad:

but it seems that you have some trouble to understand the benefit of an ADVICE Sleepy | :zzz:

[VisualCalc][Binary Guide][CommDialogs] | [Forums Guidelines]

David Crow2-Aug-07 3:01

David Crow

2-Aug-07 3:01

dona jain wrote:
...MY PROBLEM...

What problem? Confused | :confused:

dona jain wrote:
...THESE FUNCTIONS...

What functions? Confused | :confused:

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Hamid_RT2-Aug-07 3:53

Hamid_RT

2-Aug-07 3:53

I said maybe his question is transparent for me;).

WhiteSky

David Crow2-Aug-07 3:59

David Crow

2-Aug-07 3:59

Huh?

What is the point of your reply? Confused | :confused:

It has me confused, to say the least. Confused | :confused:

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Hamid_RT2-Aug-07 5:04

Hamid_RT

2-Aug-07 5:04

I said wheres his question how some people answer to him but I saw he asked one hours ago.

WhiteSky

Sam_c2-Aug-07 4:34

Sam_c

2-Aug-07 4:34

David i wouldnt worry about it...
he got the answers in a previous post but doesnt know how to use the functions so in a way doesnt know how to program.

myself i'm just confused about what he wants, seems that he wants Win32 but i have a feeling its really managed C++/CLI.

dont think its MFC or Win32.

at present his just posted in every forum, managed, win forms and here

would be nice if he could clam down and just try and explain
1) which compiler
2) which project
then we could point him to the right forum
3) and on wards for the coding he needs. (a good book by the looks of it)

just my 2 cent on this little problem Smile | :)

p.s by the way we are ment to go look in there profiles to find out what they are on about as we have time for that Roll eyes | :rolleyes:

pp.s i did because i just hate being confused Confused | :confused:

Code Project Lounge 101 by John Cardinal
Beer | [beer]

ThatsAlok3-Aug-07 0:04

ThatsAlok

3-Aug-07 0:04

whta problem??

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief

_putenv LNK2019 Error

baerten2-Aug-07 1:09

baerten

2-Aug-07 1:09

Hi everybody,

i added the function _putenv to my source code and now i have a linker error (LNK2019)
"Can't resolve external symbol"

_putenv is a system funtion of stdlib.h

How can i resolve this error?

Big thanks Smile | :)

KarstenK2-Aug-07 1:27

KarstenK

2-Aug-07 1:27

rename your function. Cry | :((

Greetings from Germany

baerten2-Aug-07 1:32

baerten

2-Aug-07 1:32

_putenv is declared in stdio.h i can't rename it... Sigh | :sigh:

Sivaprasad S Nair2-Aug-07 1:34

Sivaprasad S Nair

2-Aug-07 1:34

Try to use

errno_t _putenv_s(const char *name,const char *value);

It is more secure
best of luck

Sivan
www.ktsinfotech.com

KarstenK2-Aug-07 1:47

KarstenK

2-Aug-07 1:47

you have declared it and to use it you have to include the library here the "standard libraries" in the Linker

PS: I misundertood your question. D'Oh! | :doh:

Greetings from Germany

Roger Broomfield2-Aug-07 2:40

Roger Broomfield

2-Aug-07 2:40

I feel compelled to ask, why are you calling _putenv? what is it you hope to achieve here?

Design Question: When use Win32 and when MFC?

baerten2-Aug-07 2:53

baerten

2-Aug-07 2:53

In a ConsoleProject i need to assign values to environment variables
(number of lines and cols)

Smile | :)

I start a DOS-Console application via calling the Main of the DOS-Applic from out a MFC-Code

I even don't know if it's work, but i try it and see where it begins to crash Laugh | :laugh:

Because displaying a Console-Applic via starting a new process ( via the EXE of the Console )
and "redirect the display to a View of a Window" works already in a SourceForge and CodeProject Application
Now i try to start the DOS Applic directly without executing an EXE...
Or find the reason why it couldn't work

Have a nice day

mandanani2-Aug-07 0:56

mandanani

2-Aug-07 0:56

Using Win32 has high performance but takes more development time.
MFC has low performance but development time is less.

Am I right and any more pros & cons

sw@thi2-Aug-07 1:20

sw@thi

2-Aug-07 1:20

I think, one more thing is 'Size'. Size of the application will be more for MFC.

"a child will grow up to become an adult, but you can never stop the adult from acting like a child"

KarstenK2-Aug-07 1:37

KarstenK

2-Aug-07 1:37

If you turn off GUI features MFC also gets as fast as Win32. If you really need performance you write a worker thread without GUI.

The signifikant time is for me the development time. Blush | :O

My bosses want almost the new features running next week. Mad | :mad:

Greetings from Germany

BadKarma2-Aug-07 1:54

BadKarma

2-Aug-07 1:54

KarstenK wrote:
My bosses want almost the new features running next week.

Wow, lucky you a full week Big Grin | :-D

codito ergo sum

David Crow2-Aug-07 3:06

David Crow

2-Aug-07 3:06

KarstenK wrote:
If you really need performance you write a worker thread...

It's amazing how many folks think more threads equates to better performance.

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Cedric Moonen2-Aug-07 1:44

Cedric Moonen

2-Aug-07 1:44

mandanani wrote:
MFC has low performance

Why do you need performance ? Is it so relevant that you need to consider it ? Are you developping some 'time-critical' application ?

If no, why do you bother about performance ? Do you think the user will notice that your project takes 100 msec more to start ?

Cédric Moonen
Software developer

Charting control [v1.2]

Anurag Gandhi2-Aug-07 2:33

Anurag Gandhi

2-Aug-07 2:33

Please ask the questions like this.
I Always go for performance.
If i am creating the application which takes time 2 second to execute i will always try to minimize the time to even less than a quarter of a second.

Anurag Gandhi.
http://www.softgandhi.co.nr

Cedric Moonen2-Aug-07 7:17

Cedric Moonen

2-Aug-07 7:17

So, to reduce the launching time of your application from 2 seconds to 1 second, you'll be ready to spend twice as much time for development ? Honnestly, it is a complete nonsense to me. And furthermore, your application will probably be much harder to maintain.

For a 'normal' application (I mean a standard desktop application), why do you even speak about performance ?

Cédric Moonen
Software developer

Charting control [v1.2]

Christian Graus2-Aug-07 2:01

Christian Graus

2-Aug-07 2:01

mandanani wrote:
MFC has low performance

Rubbish.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )