C / C++ / MFC Discussion Boards

Winsock End-of-Message Response :: Winsock

valikac22-Dec-02 15:10

22-Dec-02 15:10

Hi.

What is the best solution to knowing when a server or client has sent the final piece of data across a socket?

For example, let say a client sends 100k of data to a server running OVERLAPPED I/O. The I/O model updates the server and tells it there is 50k data ready for to be received. The server calls WSARecv(). Meanwhile the server has not idea the true size of the data. It just knows there is 50k worth of the data. Now OVERLAPPED I/O updates the server the second time with 50k data, which is the last piece of data.

Based on the example scenario, how does the server know when to stop calling WSARecv() because it has processed all data? This is a general question and does not pertain to data. Is it true that web servers sends the final piece of data with something ike this at the end?

-----

0
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Thanks,
Kuphryn

Re: Winsock End-of-Message Response :: Winsock

Taka Muraoka22-Dec-02 18:49

Taka Muraoka

22-Dec-02 18:49

kuphryn wrote:
What is the best solution to knowing when a server or client has sent the final piece of data across a socket?

You need to build it into the protocol the two apps are using to communicate e.g. the first 4 bytes sent are not data but the #bytes to follow.

kuphryn wrote:
Is it true that web servers sends the final piece of data with something ike this at the end?

Again, it depends on the particular protocol being used. For HTTP, I just wait until the server closes the connection which gives me an error when I call WSARecv(). A bit hacky but since HTTP is stateless, I can't think of a reason why the server would ever want to keep the connection open and so this should be OK.

he he he. I like it in the kitchen! - Marc Clifton (on taking the heat when being flamed)

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Re: Winsock End-of-Message Response :: Winsock

valikac22-Dec-02 19:45

valikac

22-Dec-02 19:45

Okay. Thanks.

Kuphryn

Open in IE

ErosLin22-Dec-02 14:31

ErosLin

22-Dec-02 14:31

I want to open a document of myself format in IE.
This mode just like open an PDF file from internet in IE. The menu toolbar of PDF should combine with IE's toolbar and menu.
I know this is ActiveDocument.
But I don't know which keys in registry should I set when I want IE be a container.

Could anyone tell me how can I do this. A demo is better.

thank you.

Re: Open in IE

Chris Richardson23-Dec-02 9:28

Chris Richardson

23-Dec-02 9:28

Take a look at the Microsoft sample DOServer located here:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcsample98/html/vcrefdoserveractivexdocumentserver.asp[^]

Chris Richardson

Programmers find all sorts of ingenious ways to screw ourselves over. - Tim Smith

CPropertyPage Default Button

User 1278222-Dec-02 13:38

User 12782

22-Dec-02 13:38

Hi.
I've created a dialog with a CPropertySheet on it and a few CPropertyPages, this is not a wizard. For each of these pages, I would like to have a default button. Setting that attribute doesn't appear to work. I tried overriding OnOK of the dialog, checking the active page, and then calling the default button, but the message isn't sent when I press return. Any suggestions on what I should try?

I've searched here and several other places but couldn't find an answer, I'm sorry if I've overlooked it.

Thanks

modified 12-Jul-20 21:01pm.

File problem

Zuu1022-Dec-02 6:09

Zuu10

22-Dec-02 6:09

Have problem to save a bool to file and lod it again.

here is the Read function.

bool cHandleFile::Read()<br />
{<br />
	<br />
	ifstream Fil;<br />
	Fil.open(cFilNamn,ios::binary);<br />
	if (!(Fil)) {<br />
		Beep(80,100);<br />
		return(false);<br />
	}<br />
	<br />
	Fil.read((char*)&g_bSound,sizeof(bool));<br />
	<br />
	Fil.close();<br />
	<br />
	return(true);<br />
<br />
	<br />
}

FilNamn = FileName in english
Fil = File in english

Thanks for help.

---
Zuu is my name

Re: File problem

C^hris L^osinger22-Dec-02 6:13

C^hris L^osinger

22-Dec-02 6:13

what is the question?

Zuu1022-Dec-02 6:14

22-Dec-02 6:14

how to open the ¤%&¤) file and write data to it. that could be read.

is there any built in class for that?

--
Zuu is My name

Re: File problem

S O S22-Dec-02 21:33

S O S

22-Dec-02 21:33

Just replace Read() with Write() and use ofstream

Re: File problem

Christian Graus22-Dec-02 11:23

Christian Graus

22-Dec-02 11:23

sizeof(bool) ? Confused | :confused:

Christian

No offense, but I don't really want to encourage the creation of another VB developer.
- Larry Antram 22 Oct 2002

C# will attract all comers, where VB is for IT Journalists and managers - Michael
P Butler 05-12-2002

Again, you can screw up a C/C++ program just as easily as a VB program. OK, maybe not
as easily, but it's certainly doable. - Jamie Nordmeyer - 15-Nov-2002

CVS

monrobot1322-Dec-02 6:08

monrobot13

22-Dec-02 6:08

Didn't really know where else to put this so....does anyone know where I could find information or a tutorial on setting up CVS in Windows?

- monrobot13

Re: CVS

Dan Dimerman22-Dec-02 6:15

Dan Dimerman

22-Dec-02 6:15

WinCVS was pretty straightforward. A bit confusing at the beginning, and the documentation could be thicker... but after a few minutes, it was up and running.

If anyone knows how to integrate CVS with MSDEV... please let me know.

Re: CVS

Stuart Dootson22-Dec-02 10:30

Stuart Dootson

22-Dec-02 10:30

http://www.jalindi.com/igloo/[^]

HTH

Stuart Dootson

'Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p'

Re: CVS

Victor Boctor22-Dec-02 13:11

Victor Boctor

22-Dec-02 13:11

monrobot13 wrote:
tutorial on setting up CVS in Windows

Following is a link to SourceForge's tutorial to setting up CVS and getting it to access their servers, it might be of some use:
http://sourceforge.net/docman/display_doc.php?docid=766&group_id=1[^]

Regards,
Victor

phpWebNotes is a page annotation system modelled after php.net.
http://webnotes.sourceforge.net/demo.php[^]

Close pop-up menu

comrade22-Dec-02 4:48

comrade

22-Dec-02 4:48

Is there any way to programmatically close an opened pop-up menu that was invoked with an API like TrackPopupMenu?

comrade

Re: Close pop-up menu

Gary R. Wheeler22-Dec-02 5:09

Gary R. Wheeler

22-Dec-02 5:09

According to the MSDN, you can send a WM_CANCELMODE message to the owner of the popup menu.

Software Zen: delete this;

Moving Cursor position in Edit box !

Hadi Rezaee22-Dec-02 2:03

Hadi Rezaee

22-Dec-02 2:03

How can i change the cursor position in a text box ?

My month article: Game programming by DirectX by Lan Mader.
Please visit in: www.geocities.com/hadi_rezaie/index.html

Hadi Rezaie

Re: Moving Cursor position in Edit box !

Stan Shannon22-Dec-02 2:42

Stan Shannon

22-Dec-02 2:42

I assume you mean the caret, not the cursor, and you want to do so programmatically.

If so, the best way to do so is to sublcass the edit box which allows you to control the positioning of the caret. However, you should be aware that this is not a trivial undertaking as you need to be knowledgeable of text sizing issues. The caret itself can also be problamatic to deal with.

"Any clod can have the facts, but having opinions is an art."
Charles McCabe, San Francisco Chronicle

Re: Moving Cursor position in Edit box !

Stan Shannon22-Dec-02 2:55

Stan Shannon

22-Dec-02 2:55

Actually, I need to correct myself.

I checked and the CEdit api does have a PosFromChar method

So you could do something like this...

myedit.SetCaretPos( myedit.PosFromChar( index ));

That was not there the last time I had to do the same thing.

"Any clod can have the facts, but having opinions is an art."
Charles McCabe, San Francisco Chronicle

Re: Moving Cursor position in Edit box !

Brian Delahunty22-Dec-02 3:09

Brian Delahunty

22-Dec-02 3:09

You can do it using the SetCaretPos() method.

Regards,
Brian Dela Smile | :)

"There should be an amendment to the constitution, that every president must be examined for paranoia before moving into office." - peterchen

Re: Moving Cursor position in Edit box !

Andreas Masur22-Dec-02 9:05

Andreas Masur

22-Dec-02 9:05

void CEdit::SetSel(DWORD dwSelection, BOOL bNoScroll = FALSE);
void CEdit::SetSel(int nStartChar, int nEndChar, BOOL bNoScroll = FALSE);

To set the cursor at the end of the text within the control...

// With associated member variable to the edit control and to the content
UpdateData();
m_EditControl.SetSel(m_EditContent.GetLength(), m_EditContent.GetLength());


// With associated member variable to the content
UpdateData();
((CEdit *) GetDlgItem(IDC_EDIT))->SetSel(m_EditContent.GetLength(), m_EditContent.GetLength());

If you want to use the first function you have to set the starting position in the low-order word and and the ending position in the high-order word...thus

// With associated member variable to the edit control and to the content
UpdateData();

// Set position
DWORD dwSelection = m_EditContent.GetLength();
dwSelection |= m_EditContent.GetLength() << 16;

m_EditControl.SetSel(dwSelection);


// With associated member variable to the content
UpdateData();

// Set position
DWORD dwSelection = m_EditContent.GetLength();
dwSelection |= m_EditContent.GetLength() << 16;

((CEdit *) GetDlgItem(IDC_EDIT))->SetSel(dwSelection);

Ciao, Andreas

"Software is like sex, it's better when it's free." - Linus Torvalds

Access violation happend

Mazdak22-Dec-02 0:53

Mazdak

22-Dec-02 0:53

Can somebody please tell whats wrong with my codes:

LPSTARTUPINFOW si;
ZeroMemory(&si, sizeof(LPSTARTUPINFOW));
si->cb= sizeof(LPSTARTUPINFOW);
si->dwFlags = STARTF_USESHOWWINDOW ;
si->wShowWindow = SW_SHOW;
PROCESS_INFORMATION pi;

CreateProcessWithLogonW(L"Arash",L"Mazy",L"aaa",NULL,(LPCWSTR)m_pathstring.GetBuffer(),NULL,CREATE_NEW_CONSOLE,NULL,NULL,si,&pi);

Access violation happend for this line:

si->cb= sizeof(LPSTARTUPINFOW);

Mazy

"And the carpet needs a haircut, and the spotlight looks like a prison break
And the telephone's out of cigarettes, and the balcony is on the make
And the piano has been drinking, the piano has been drinking...not me...not me-Tom Waits

Re: Access violation happend

Stan Shannon22-Dec-02 2:34

Stan Shannon

22-Dec-02 2:34

LPSTARTUPINFOW is a pointer to a STARTUPINFOW;

You must creaet a STARTUPINFOW object not a LPSTARTUPINFOW object.

STARTUPINFOW si;

LPSTARTUPINFOW lpsi = &si; // this step for illustration only, not really needed.

ZeroMemory(lpsi, sizeof(STARTUPINFOW));
.
.
.

"Any clod can have the facts, but having opinions is an art."
Charles McCabe, San Francisco Chronicle

Information extraction from website

georgiek5022-Dec-02 0:29

georgiek50

22-Dec-02 0:29

Hi, am the author of a movie collection organizer and I have noticed that there are other ones like it that have the capability to extract movie information from the IMDb and add it to dialog boxes in their program. I would like to add this functionality to mine as well but I have no idea where to start from. Does the data access depend on the layout of the site and how they store their data or there are different ways to do the same thing. If anyone is familiar with this site and some tricks on how to extract data from it please help me out on this. Thanks in advance.

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