C / C++ / MFC Discussion Boards

Re: Socket Problem

lucy11-Nov-05 10:44

lucy

11-Nov-05 10:44

the second time the client connect to server, is the connection established all right?

Re: Socket Problem

jonbondavis11-Nov-05 16:57

jonbondavis

11-Nov-05 16:57

hi lucy,

it is connected without any problem. but data is not send.

thanks & regards
john davis

Re: Socket Problem

lucy12-Nov-05 17:00

lucy

12-Nov-05 17:00

HTH:

// disable the Nagle algorithm for send coalescing
// so the short packet will be sent immediately
bool opt = 1;
if ( NO_ERROR != setsockopt(m_sdIp, IPPROTO_TCP, TCP_NODELAY,
(char *)&opt, sizeof(opt)) )
{
bWarning = true;
strWarning += _T("Set TCP_NODELAY failed.\n");
}

How to bring back ClassView

shivditya10-Nov-05 17:36

shivditya

10-Nov-05 17:36

Is there any shorter way to bring back missing classview?
My entire ERP projects classview is missing. I am Keeping this problem on forum for fourth time please help.

|| ART OF LIVING ||

Re: How to bring back ClassView

*Dreamz10-Nov-05 18:26

*Dreamz

10-Nov-05 18:26

Not yet back? Smile | :)

Did you try deleting .ncb and .clw files??

Re: How to bring back ClassView

shivditya10-Nov-05 18:40

shivditya

10-Nov-05 18:40

Do you enjoy troubling people?

|| ART OF LIVING ||

Re: How to bring back ClassView

*Dreamz10-Nov-05 19:02

*Dreamz

10-Nov-05 19:02

No, my friend.....
I dont think anybody here does that...
I just wanted to help you..the same answer i gave for your previous post also..
I wanted to know the result....

Re: How to bring back ClassView

shivditya10-Nov-05 21:05

shivditya

10-Nov-05 21:05

In my backup copy when i implemented ur suggestion my classwizard diappeared and after rebuilding also nothing improved

|| ART OF LIVING ||

-- modified at 3:18 Friday 11th November, 2005

Re: How to bring back ClassView

*Dreamz10-Nov-05 23:44

*Dreamz

10-Nov-05 23:44

Yes..that is true..
But IDE will prompt you to create classwizard from the existing files...

Any VC++ certification exams???

mandanani10-Nov-05 17:19

mandanani

10-Nov-05 17:19

Hi,
I am planning to take VC++ certifications that could add weight to my Resume. Not the free ones like Brain Bench certifications. Should be authentic and has to be taken from recognised promatic center. Has Microsoft have any plans to re-start VC++ certifications??
Please Help...

Nani

Re: Any VC++ certification exams???

ThatsAlok10-Nov-05 17:47

ThatsAlok

10-Nov-05 17:47

mandanani wrote:
Has Microsoft have any plans to re-start VC++ certifications??

vc++ exams are already obselete.. now you can prepare for .net exams/certification

"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

need code to select items in a tree with Ctrl and other keys

narayanagvs10-Nov-05 16:43

narayanagvs

10-Nov-05 16:43

Hi all,

I need to select items in a tree with Ctrl and other keys
like ctrl+up arrow , ctrl+down arrow for traversing through the items and on on pressing ctrl+spacebar the item shud get selected.
I want to know when the setfocus() is called
when pressing ctrl+VK_UP

Socket Server

NYTSX10-Nov-05 10:58

NYTSX

10-Nov-05 10:58

I have a socket server that is to establish a connection with only one client. I can accept the client fine and also receive the data from the client. My problem is that every time I want to reconnect to the server, I get a error message.

 Debug Assertion Failed!<br />
<br />
   Program: D:\TempProject\Debug\TempPrj.exe<br />
   File: sockcore.cpp<br />
   Line: 177

When I try and debug it says an unexpected breakpoint has been reached....

What does I have to do when the client disconnects? How do I get the server to come back up in the Listen() state again?

Thanks for helping a noob out.

Re: Socket Server

ThatsAlok10-Nov-05 19:33

ThatsAlok

10-Nov-05 19:33

NYTSX wrote:
My problem is that every time I want to reconnect to the server, I get a error message.

I believe you are accepting the New Socket Connection on same variable without properly closing it...
First make a call to Close().. before acception new connection!

"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

Re: Socket Server

NYTSX11-Nov-05 1:54

NYTSX

11-Nov-05 1:54

I do call Close() when the disconnect button is pressed. At that point I also do a Listen() which I figured would allow for the next client to connect to the server?

Any more suggestions? Would this be sufficient to have the server always be ready to accept a connection when one is not already established?

Progress bar being resized

PrashantJ10-Nov-05 10:47

PrashantJ

10-Nov-05 10:47

Hi,
I have this code to draw a progress bar at run time, but I dont' want the user to resize it. So is there any way by which I could restrict the user from resizing it.

CProgressCtrl m_ProgressBar;
m_ProgressBar.Create(WS_CHILD|WS_VISIBLE|WS_THICKFRAME ,
CRect(10,rectWnd.top + headerHeight+55,window.Width()-2*10,20),
(CWnd *)this, IDC_PROGRESSBAR);

I think will have to add some WS_ option but don't know exactly.

Thanks,
PJ

Re: Progress bar being resized

David Crow10-Nov-05 10:50

David Crow

10-Nov-05 10:50

Unless I'm missing something here, controls are not normally resizeable at runtime.

"Take only what you need and leave the land as you found it." - Native American Proverb

Re: Progress bar being resized

PrashantJ10-Nov-05 10:52

PrashantJ

10-Nov-05 10:52

But I draw other controls like button, edit box, group box, They are not resizable..
Thanks,

Re: Progress bar being resized

David Crow10-Nov-05 10:59

David Crow

10-Nov-05 10:59

PrashantJ wrote:
But I draw other controls like button, edit box, group box, They are not resizable..

My point exactly.

"Take only what you need and leave the land as you found it." - Native American Proverb

Re: Progress bar being resized

krmed10-Nov-05 17:00

krmed

10-Nov-05 17:00

Remove the WS_THICKFRAME style.

Good luck.

Karl - WK5M
PP-ASEL-IA (N43CS)
<kmedcalf@ev1.net>
PGP Key: 0xDB02E193
PGP Key Fingerprint: 8F06 5A2E 2735 892B 821C 871A 0411 94EA DB02 E193

Re: Progress bar being resized

PrashantJ11-Nov-05 3:25

PrashantJ

11-Nov-05 3:25

No that didn't work Frown | :(

Is there a deeper, hidden meaning behind this.

WREY10-Nov-05 9:53

WREY

10-Nov-05 9:53

On the surface it doesn't make sense, but I recall 'PJ Arends' mentioned something about it in one of his articles, and now I see something similar to it in another article, which is causing me to try and remember the real reason behind its use.

Here's the code.

BOOL CALLBACK CMyApp::searcher(HWND hWnd, LPARAM lParam)
{
    DWORD result;
    LRESULT ok = ::SendMessageTimeout(hWnd,
                                      UWM_ARE_YOU_ME,
                                      0, 0, 
                                      SMTO_BLOCK |
                                      SMTO_ABORT_IF_HUNG,
                                      200,
                                      &result);
    if(ok == 0)
       return TRUE;          // ignore this and continue

    if(result == UWM_ARE_YOU_ME)
    {
        HWND* target = (HWND*)lParam;  // value assigned to ptr
        *target = hWnd;                // value assigned to ptr AGAIN!
        return FALSE;        // stop search
    }

    return TRUE;             // continue search
}

Is there a reason for the reassigning of a value to the same variable in this manner?

Unsure | :~

William

Fortes in fide et opere!

Re: Is there a deeper, hidden meaning behind this.

David Crow10-Nov-05 10:52

David Crow

10-Nov-05 10:52

You might want to pose this question to Dr. Newcomer.

The only other thing that I can offer is that:

HWND *target = (HWND *) lParam;

equates to:

HWND *target;
target = (HWND *) lParam;

which is different than:

*target = hWnd;

"Take only what you need and leave the land as you found it." - Native American Proverb

Re: Is there a deeper, hidden meaning behind this.

WREY10-Nov-05 12:44

WREY

10-Nov-05 12:44

Your explanation makes a lot of sense and I believe is the reason for what's being done.

Thanks.

Big Grin | :-D

William

Fortes in fide et opere!

Re: Is there a deeper, hidden meaning behind this.

John R. Shaw10-Nov-05 17:40

John R. Shaw

10-Nov-05 17:40

I saw that David explaned that it was not a reassignment.

I hope someone knows the anwser to the implied question: What is the reason behind this?

I consider that more important, because I would have just returned the handle to hWnd or 0, instead of returning TRUE or FALSE. It would have been a lot simpler.

INTP
Every thing is relative...

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