C / C++ / MFC Discussion Boards

RYU^^30-Sep-08 1:23

30-Sep-08 1:23

Hi,

I am looking at a way to do zip compression in C#. Is there any free library that is as fast as winzip?

Thanks Smile | :)

Re: Compression in C#

RYU^^30-Sep-08 1:23

RYU^^

30-Sep-08 1:23

Upss.. wrong forum... sorry...

Re: Compression in C#

ThatsAlok30-Sep-08 1:34

ThatsAlok

30-Sep-08 1:34

good you saved yourself from hand of cruel c++ developer Big Grin | :-D

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
Never mind - my own stupidity is the source of every "problem" - Mixture

cheers,
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Re: Compression in C#

Hamid_RT30-Sep-08 4:47

Hamid_RT

30-Sep-08 4:47

If you like to use of c++ for it see Zip and Unzip in the MFC way[^] else Im sorry you are on the wrong forum. Smile | :)

Re: Compression in C#

RYU^^30-Sep-08 23:49

RYU^^

30-Sep-08 23:49

If I can't get the answer from C# forum, I will try and download the demo project and try to see how fast does it compress the file. If it is fast, will build the COM object for it.

Thanks Hamid Smile | :)

Re: Compression in C#

Hamid_RT1-Oct-08 8:42

Hamid_RT

1-Oct-08 8:42

You're welcome. Smile | :)

__stdcall compile error?

George_George30-Sep-08 1:07

George_George

30-Sep-08 1:07

Hello everyone,

I want to export a function in DLL, and using extern C and __stdcall together to resolve name decoration issue -- so I need dllexport/stdcall/extern C together to define a function.

But I have played a while there is always compile error? Why? Here is my code and related compile error.

extern "C" __declspec(dllexport) __stdcall BOOL WINAPI StoreData(DWORD dw)

1>d:\visual studio 2008\projects\testdll\testdll\dllmain.cpp(78) : error C2143: syntax error : missing ';' before '__stdcall'
1>d:\visual studio 2008\projects\testdll\testdll\dllmain.cpp(78) : warning C4229: anachronism used : modifiers on data are ignored
1>d:\visual studio 2008\projects\testdll\testdll\dllmain.cpp(78) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
1>d:\visual studio 2008\projects\testdll\testdll\dllmain.cpp(78) : error C2377: 'BOOL' : redefinition; typedef cannot be overloaded with any other symbol
1>        c:\program files\microsoft sdks\windows\v6.0a\include\windef.h(153) : see declaration of 'BOOL'
1>d:\visual studio 2008\projects\testdll\testdll\dllmain.cpp(79) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
1>d:\visual studio 2008\projects\testdll\testdll\dllmain.cpp(105) : error C2143: syntax error : missing ';' before '__stdcall'
1>d:\visual studio 2008\projects\testdll\testdll\dllmain.cpp(105) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
1>d:\visual studio 2008\projects\testdll\testdll\dllmain.cpp(106) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int

regards,
George

Re: __stdcall compile error?

CPallini30-Sep-08 1:49

CPallini

30-Sep-08 1:49

I don't know how __stdcall helps you in resolving name decoration issues, anyway you should use it after the return type of the function.
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

[My articles]

Re: __stdcall compile error?

George_George30-Sep-08 2:00

George_George

30-Sep-08 2:00

Thanks CPallini,

Your solution works. But are there any MSDN documents mentioning the rule/syntax where to put __stdcall? I searched but not found.

regards,
George

Re: __stdcall compile error?

CPallini30-Sep-08 2:23

CPallini

30-Sep-08 2:23

You've to search better Wink | ;)

, from MSDN [^]:

return-type __stdcall function-name[(argument-list)]

Smile | :)

Re: __stdcall compile error?

George_George30-Sep-08 21:56

George_George

30-Sep-08 21:56

Thanks CPallini,

This is exactly what I am looking for. Smile | :)

regards,
George

Re: __stdcall compile error?

toxcct30-Sep-08 2:02

toxcct

30-Sep-08 2:02

Georges,

you have redundant declarations:
"extern "C" __declspec(dllexport) __stdcall BOOL WINAPI StoreData(DWORD dw)"

__stdcall is wrongly placed. it should be after the return type.
WINAPI is already defined for your function. remove it, and place __stdcall instead

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Re: __stdcall compile error?

George_George30-Sep-08 21:55

George_George

30-Sep-08 21:55

Thanks toxcct,

From MSDN I have not found __stdcall grammar, about which is the correct place -- as you mentioned after return type. Are there any documents mentioning the grammar? Smile | :)

regards,
George

Re: __stdcall compile error?

toxcct30-Sep-08 21:59

toxcct

30-Sep-08 21:59

George_George wrote:
From MSDN I have not found __stdcall grammar, about which is the correct place -- as you mentioned after return type. Are there any documents mentioning the grammar?

liar, you saw CPallini's answer[^]...

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Re: __stdcall compile error?

George_George30-Sep-08 22:04

George_George

30-Sep-08 22:04

Thanks, I also found it. I missed his reply before. Smile | :)

regards,
George

Re: __stdcall compile error?

Matthew Faithfull30-Sep-08 3:37

Matthew Faithfull

30-Sep-08 3:37

George, this sounds like quite a neat trick and potentially useful for sharing/porting code modules between compilers e.g. Borland/Microsoft. Why don't you write this up, the reasons for wanting it and an little example as an article for Code Project. I for one would be interested.

"The secret of happiness is freedom, and the secret of freedom, courage."
Thucydides (B.C. 460-400)

Re: __stdcall compile error?

Mark Salsbery30-Sep-08 4:59

Mark Salsbery

30-Sep-08 4:59

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: __stdcall compile error?

George_George30-Sep-08 21:57

George_George

30-Sep-08 21:57

Hi Matthew,

From the discussion with others here, I looks like stupid. Everyone else seem know the answer. Smile | :)

regards,
George

Re Question about folder copy

Davitor30-Sep-08 1:07

Davitor

30-Sep-08 1:07

Hi All
i am asking one more time,how to copy Folde?Becouse i haven't found Shfileoperation() example.Plz give me some runing example of Shfileoperation.Plz help me

Thanks in advance Rose | [Rose]

Re: Re Question about folder copy

Michael Schubert30-Sep-08 1:31

Michael Schubert

30-Sep-08 1:31

The last time you asked you were given a link to a very good article by Michael Dunn. Have you even bothered to look at it?

Re: Re Question about folder copy

Davitor30-Sep-08 1:46

Davitor

30-Sep-08 1:46

It was good artical.But i need very simple example.becouse i am new in vc++.

Plz help me

Re: Re Question about folder copy

Michael Schubert30-Sep-08 2:20

Michael Schubert

30-Sep-08 2:20

Here is another article with example code:
http://www.codeproject.com/KB/files/FolderUtils.aspx[^]

Re: Re Question about folder copy

David Crow30-Sep-08 3:21

David Crow

30-Sep-08 3:21

Davitor wrote:
But i need very simple example.

That's as simple as it gets. Anything simpler and we'd have to come over and do the work for you.

"Love people and use things, not love things and use people." - Unknown

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

Re: Re Question about folder copy

Davitor1-Oct-08 2:38

Davitor

1-Oct-08 2:38

you welcome Rose | [Rose]

Get Number of Serail Port in Computer

MANISH RASTOGI29-Sep-08 23:25

MANISH RASTOGI

29-Sep-08 23:25

Hi,
How can I know the number of serial ports on my computer using code?

Thanks,

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