C / C++ / MFC

16-May-07 22:50

i have a question to ask!
I,m having some trouble with Ftp error code, After i catch error from 'SetCurrentDirectory()' (error code 12031- connection to the server was reset)
I try to display it (using my 'DisplayErrorString' function with below code in):

'FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM,NULL,dwError,<br />
		MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), <br />
                achBuffer, 120, NULL) ;'

but I get nothing, empty string!
Enyone know what to do?
Thanx!

Paresh Chitte17-May-07 0:07

Paresh Chitte

17-May-07 0:07

josip cagalj wrote:
'FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM,NULL,dwError,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
achBuffer, 120, NULL) ;'

I hope you have got the dwError from the API GetLastError.

You should call the GetLastError function immediately when a function's return value indicates that such a call will return useful data.

Regards,

Paresh.

josip cagalj17-May-07 0:32

17-May-07 0:32

Jes I do. I Call GetLastError immediately

if (!theApp.m_pConn->SetCurrentDirectory(voxftpdir))<br />
{<br />
    CString str;<br />
    err=GetLastError();<br />
            ...<br />

Paresh Chitte17-May-07 0:41

Paresh Chitte

17-May-07 0:41

josip cagalj wrote:
CString str;
err=GetLastError();

Please change the order. Hope this will serve your purpose.

Regards,

Paresh.

josip cagalj17-May-07 0:59

17-May-07 0:59

I think we misunderstand, so I'll recreate my question.
I switched off lan-cable on purposely to see how will my app react!
When I tried to get something from web server I used SetCurentDirectory() which trow error code 12031, but when i tried to get text explaining using:

'FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM,NULL,dwError,MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),achBuffer, 120, NULL) ;'

which puts it in 'achBuffer' i've got nothing!!!!
Afterward i've searched the web and find out that 1203 error code stands for 'connection to the server was reset'.
My problem is how can I get it from a above solution (FormatMessage) and post it with AfxMessageBox???
Thanks!

Mark Salsbery17-May-07 5:53

Mark Salsbery

17-May-07 5:53

There's probably no message available in the system. If FormatMessage fails (returns 0) then
call GetLastError()...you'll probably get error code 317 ("The system cannot find message text
for message number ...").

You'll need to supply your own error strings.

Mark

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

Hamid_RT17-May-07 6:47

17-May-07 6:47

Whats the return value of FormatMessage?

WhiteSky

Last msg

josip cagalj17-May-07 22:02

Problem with code on Reading Files :(

17-May-07 22:02

I've solved the problem, I just needed to load "WININET.DLL"

HMODULE m_hWininet = LoadLibrary(_T("WININET.DLL"));<br />

and than

FormatMessage (<br />
   FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_FROM_HMODULE,<br />
   m_hWininet,dwError,<br />
   MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), achBuffer, 120,<br />
   NULL) ;<br />

And that it's!
Thanks to all!

P.S.
Don't forget to free library after!

Immunity1816-May-07 22:32

Immunity18

16-May-07 22:32

Hi i am working on a project where it is reading files (names are stored on a CArray[CS ,CS] FArray ). CS = CString and [ = < ] = >

While it Reading a file :

In each Buffer line it search if there is any word (stored in a CArray[CS,CS] WArray) int ntimes is the number that each WArray element found in Buffer Line

and the end each ntimes is stored in RArray.

Code is working perfect till ifstream TextFile
when i am adding the next code lines the .exe i build is freezing and
become (Not Responding)

if someone could see the reading code for some faults i would greatful

CArray<cstring ,="" cstring=""> RArray;
CString FilePathName;
CString LineRead ;
int ntimes=0;
const int sz =100;
char buf[sz];

m_FolderName = "C:\\test123\\";
for ( int p = 0 ; p < FArray.GetSize() ; p++)
{
FilePathName = m_FolderName + FArray.GetAt(p);
m_List.AddString(FilePathName);
ifstream FileText(FilePathName);

while(FileText.get(buf,sz))
{

FileText.get();
LineRead = (LPCSTR) buf;

for ( int m = 0 ; m < WArray.GetSize() ; m++)
{
int nStart=1;
while ( LineRead.Find(WArray.GetAt(m),nStart)!=0)
{
ntimes = ntimes +1;
nStart= LineRead.Find(WArray.GetAt(m) , nStart);
}

RArray.Add(""+ntimes);

}
}

FileText.close();
return;

}

Re: Problem with code on Reading Files :(

Hamid_RT16-May-07 22:37

Re: Problem with code on Reading Files :(

16-May-07 22:37

Same question!

WhiteSky

Immunity1816-May-07 22:41

Immunity18

16-May-07 22:41

slow scrollbar

Aint16-May-07 22:13

Aint

16-May-07 22:13

hi.
I have created scrollbar in the application but the scrollbar move very slow when I clicked the two ends of the scrollbar. what should I do?

Re: slow scrollbar

Mark Salsbery17-May-07 5:56

Mark Salsbery

17-May-07 5:56

ReturnRain wrote:
what should I do?

That depends on what you are doing in response to the WM_HSCROLL/WM_VSCROLL messages.
If you are doing a lengthy/slow operation then it's going to be slow.
Or maybe you need to scroll by a greater amount for each scrollbar unit scrolled.

Mark

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

Re: slow scrollbar

Nelek17-May-07 20:15

Nelek

17-May-07 20:15

Hi,

it can depends on your UpdateWindow () too. If you are redrawing a lot of things it can difficult other things. Just take a look if other things go slow, and try to make your code faster.

I had the same problem because I was bringing CObject derived classes and erasing them after the use. I solve my speed problem using pointers. I should not copy objects but accessing them directly.

Take a look on your code Smile | :)

Greetings.

--------
M.D.V.

If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?

Images in CListCtrl

anilkrupakar16-May-07 21:58

anilkrupakar

16-May-07 21:58

How to add an image to a list ctrl. i want to add different icons for the column 1 for all the rows.

Anil Jillella

Re: Images in CListCtrl

CPallini16-May-07 22:12

CPallini

16-May-07 22:12

You have to use an Image List see here [^].
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.

Re: Images in CListCtrl

Hamid_RT16-May-07 22:24

Boost 1.34.0 have been released!

16-May-07 22:24

See Thumbnails Viewer using ListCtrl [^]

WhiteSky

Shao Voon Wong16-May-07 21:54

Shao Voon Wong

16-May-07 21:54

http://www.boost.org/

In case you are not aware!

Re: Boost 1.34.0 have been released!

Sarath C16-May-07 22:33

Sarath C

16-May-07 22:33

Post it in the lounge Smile | :)

-Sarath.
"Great hopes make everything great possible" - Benjamin Franklin

My blog - Sharing My Thoughts, An Article - Understanding Statepattern

Re: Boost 1.34.0 have been released!

toxcct17-May-07 0:28

toxcct

17-May-07 0:28

this has been announced by nemanja trifunovic 3 days ago[^] on his CP blog Poke tongue | ;-P

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Help me Creating a Setup.exe

garfield18516-May-07 21:29

garfield185

16-May-07 21:29

Hi. I need to create the setup.exe file for the aplication I have developed.
It works perfectly on my computer, but I want to try it on another computer to see exactly how would it work on the customer´s PC.
To know exactly which dll it needs, I have taken only the exe to the new computer and executed it. That way, the exe asks for the dll it needs. After doing with 4 dlls, when I execute the program it makes nothing. The program starts and finishes in about a half second.
I have tried to write a log to know in wich line it breaks the execution, but it nowhere after the OnInitDialog event.
I have tried to use the installshield and the Inno Setup, and it doesn´t work. A blank messagebox appears when executing the app.
I don´t know what to do, could someone help me please...?

I use Visual C++ MFC. WTF | :WTF:

Re: Help me Creating a Setup.exe

Hamid_RT16-May-07 22:32