creating ActiveX for uploading multiple files, zipping file sending to server - C / C++ / MFC Discussion Boards

abhiramsss22-Aug-07 2:02

22-Aug-07 2:02

Hi All,

With MSMQ using VC++ what kind of messages we can transfer , i mean can we send and recieve binary data, SQL statements,STructures etc

Thanks

abhi

Re: MSMQ Send and Recv data

James R. Twine22-Aug-07 2:45

James R. Twine

22-Aug-07 2:45

Well, since any message can be reduced to binary data - and IS behind the scenes anyway, you can send any kind of message you want. The processing of said messages is up to you.

Peace!

-=- James
Please rate this message - let me know if I helped or not!<HR>If you think it costs a lot to do it right, just wait until you find out how much it costs to do it wrong!
Avoid driving a vehicle taller than you and remember that Professional Driver on Closed Course does not mean your Dumb Ass on a Public Road!
See DeleteFXPFiles

Is there a problem in this case?

heavymay22-Aug-07 1:49

heavymay

22-Aug-07 1:49

The problem is as follows:
in a chat system.A and B are client ,C is server. There is only one tcp line between client and server.Client A send data to server C ,then server C transmit data to client B, but can B send data to client A throuth server C at the same time?I think there will be a problem,because B and C are sending Data to each other at the same time.There must be a conflict.My friends think there are no problem ,tcp can deal with it.
so can are a client and a server sending data on the same connection at the same time? or create establish two socket,one for receiving,the other for sending?

Thank you for helping me.

study

Re: Is there a problem in this case?

James R. Twine22-Aug-07 1:55

James R. Twine

22-Aug-07 1:55

There should be no problem with this at the TCP/IP socket level. The application(s) involved being able to handle sending and receiving at the same time, well that is another issue. Smile | :)

Peace!

Re: Is there a problem in this case?

heavymay22-Aug-07 15:02

heavymay

22-Aug-07 15:02

Thank you for helping me

study

Re: Is there a problem in this case? [modified]

Juan Antonio Bermejo22-Aug-07 1:56

Juan Antonio Bermejo

22-Aug-07 1:56

TCP can deal with your problem. What you call 'at the same time' is managed by the lower layers of the network system.

-- modified at 8:04 Wednesday 22nd August, 2007

Re: Is there a problem in this case?

heavymay22-Aug-07 15:02

heavymay

22-Aug-07 15:02

Thank you for helping me !

study

creating ActiveX for uploading multiple files, zipping file sending to server

Dhiraj kumar Saini22-Aug-07 1:34

Dhiraj kumar Saini

22-Aug-07 1:34

I have to make an activex control through which i have to select multiples images files, zip them send to the server and again unzip them when dowloading from the server to the browser. All this is to be done through ActiveX control in vc++ and multiple files are to be selected through browse option.

Please help me out. Frown | :(

Thanks In Advance.
Dhiraj

Dhiraj

How to display a bitmap on the push button

yaminisridaran22-Aug-07 1:09

yaminisridaran

22-Aug-07 1:09

I am using CBitmapButton to display bitmap on the push button.

CBitmapButton m_bitmap;
m_bitmap.Create(NULL, WS_CHILD|WS_VISIBLE|BS_OWNERDRAW,
CRect(10,10,100,100), GetDc(), 1);
m_bitmap.LoadBitmap(IDB_PLAY,0,0,0);

This is not working

S.Yamini

Re: How to display a bitmap on the push button

Nelek22-Aug-07 1:32

Nelek

22-Aug-07 1:32

If you are in VC++ try with create the CBitmapButton in your resource editor, set the Bitmap there, and then when you make click on the button set the property to visible as you want.

If not...

With your code you are creating the bitmap and loading in the button but, are u sure that your GetDC () is pointing where you need?

Take a look step by step with the debugger

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?

Re: How to display a bitmap on the push button

yaminisridaran22-Aug-07 1:43

yaminisridaran

22-Aug-07 1:43

thanks. It works now

S.Yamini

Re: How to display a bitmap on the push button

Nelek22-Aug-07 1:51

Nelek

22-Aug-07 1:51

You are wellcome Wink | ;)

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?

Re: How to display a bitmap on the push button

David Crow22-Aug-07 2:52

David Crow

22-Aug-07 2:52

yaminisridaran wrote:
This is not working

See here for one that does.

"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

can a visual c++ application done with VS 2005 ever exist widout .net framework

plural22-Aug-07 1:05

plural

22-Aug-07 1:05

am a vb.net and java developer but i want to get back to my c++, but i dont understand why a small application should need a 50mb runtime install.

can an application developed with visual c++ 2005 , any kind run widout the .net frammwork? impossible huh?

phatkin

Re: can a visual c++ application done with VS 2005 ever exist widout .net framework

jhwurmbach22-Aug-07 1:19

jhwurmbach

22-Aug-07 1:19

Simply start an unmanaged C++ project. Not a managed (CLR) one.
Use project type ATL, MFC or Win32.

prubyholl wrote:
impossible huh?

Quite easy, huh?

Though I speak with the tongues of men and of angels, and have not money, I am become as a sounding brass, or a tinkling cymbal.
George Orwell, "Keep the Aspidistra Flying", Opening words

Re: can a visual c++ application done with VS 2005 ever exist widout .net framework

plural22-Aug-07 1:40

plural

22-Aug-07 1:40

thanks, and you can get all your forms and all the power of c++?????thanks

phatkin

Re: can a visual c++ application done with VS 2005 ever exist widout .net framework

jhwurmbach22-Aug-07 1:49

jhwurmbach

22-Aug-07 1:49

You can get all the power of C++ and use MFC, qt, wxWidgets and WhatTheHeckElse as GUI Toolkit.

Windows forms are not possible - these are managed and require the installation of the .NET-Framework.
But you only need to install this once on a given PC. Like e.g. a Java VM.
Is this really a problem for you?

Though I speak with the tongues of men and of angels, and have not money, I am become as a sounding brass, or a tinkling cymbal.
George Orwell, "Keep the Aspidistra Flying", Opening words

Re: can a visual c++ application done with VS 2005 ever exist widout .net framework

S Douglas22-Aug-07 2:05

S Douglas

22-Aug-07 2:05

prubyholl wrote:
can an application developed with visual c++ 2005 , any kind run widout the .net frammwork? impossible huh

As others have side, yup you can create native C++ apps without the .NET runtime. However, when you go to distribute your apps you will need to ship the updated C runtime Microsoft Visual C++ 2005 Redistributable Package (x86)[^] for older computers

With respect, I must disagree. A quick look at middle management in just about any corporation shows that the dodo not only survived, it's reproducing in record numbers. Christopher Duncan

Re: can a visual c++ application done with VS 2005 ever exist widout .net framework

jhwurmbach22-Aug-07 2:19

jhwurmbach

22-Aug-07 2:19

S Douglas wrote:
when you go to distribute your apps you will need to ship the updated C runtime Microsoft Visual C++ 2005 Redistributable Package (x86)[^] for older computers

Which is 2,5 MB in size, only needed once per Computer, plus you can use the link to Microsoft (and don't have to ship it yourself).

Though I speak with the tongues of men and of angels, and have not money, I am become as a sounding brass, or a tinkling cymbal.
George Orwell, "Keep the Aspidistra Flying", Opening words

Re: can a visual c++ application done with VS 2005 ever exist widout .net framework

JudyL_MD22-Aug-07 2:22

JudyL_MD

22-Aug-07 2:22

You will only need to do that if you link dynamically to MFC / CRT. If you link statically (not the default settings, by the way), you don't have to distribute anything but your exe.

ActiveX serialization

shiraztk22-Aug-07 0:46

shiraztk

22-Aug-07 0:46

Hi
Where is the data serialized in a activeX Control file or registery? Can we access that data?

Regards

The Best Religion is Science.
Once you understand it, you will know God.

ODBC & C++ Question

Programm3r22-Aug-07 0:31

Programm3r

22-Aug-07 0:31

Hi all,

I am using an ODBC class written by Carlos Antollini (A set of ODBC Classes) and making use of Oracle 10g Express Edition.
Basically what I'm trying to do, is perform a select statement on the database to determine if a certain
record exists. If the record exists I perform an UPDATE stament, and when the record doesn't exists,
I perform a INSERT. (I don't want to go the route of the Stored Procedures Thanks Smile | :)

)

For instance:

pdb.m_nRowsAffected=0;
pdb.Execute(SELECT * FROM TABLE WHERE FIELDNAME = 'CONDITION';);
if (pdb.m_nRowsAffected>0)
{
  UPDATE
}
else
{
  INSERT
}

THE PROBLEM:
The variable m_nRowsAffected returns a code of -1, even if the record exists. After stepping into the
function I saw that the SQLRowCount sets the variable to -1. I have no idea what is going on Confused | :confused:

. If I make
use of MySQL everything works. An example of the function Execute() is shown below. Can anyone please
assist me in this problem??

BOOL CODBCDatabase::Execute(CHAR *szSqlStr)
{
	SQLRETURN ret;
	SQLHSTMT hStmt = NULL;
	SQLINTEGER nRowCount;

	SQLAllocHandle(SQL_HANDLE_STMT, m_hDbc, &hStmt);
	ret = SQLExecDirect(hStmt, (SQLCHAR*)szSqlStr, SQL_NTS);
	
	SQLRowCount(hStmt, &nRowCount);
	
	m_nRowsAffected = nRowCount;
	return ret == SQL_SUCCESS || ret == SQL_SUCCESS_WITH_INFO;
}

Many Thanks
Regards,

The only programmers that are better that C programmers are those who code in 1's and 0's Green Alien | [Alien]

Programm3r
My Blog: ^_^

Re: ODBC & C++ Question

Matthew Faithfull22-Aug-07 1:19

Matthew Faithfull

22-Aug-07 1:19

It's not really my topic but I did once write a SQL parser prototype based on the Oracle 8 SQL spec only to find that Oracle 8 SQL and 'normal' SQL disagree about a lot of things, especially SELECT cleverness. I'd check your Oracle docs for how to do this their way. I don't know if 10 is any more standards compliant than 8. Can you see what SQL the ODBC driver is producing and compare the MySQL output with the Oracle by any chance. That might help.

Nothing is exactly what it seems but everything with seems can be unpicked.

Re: ODBC & C++ Question

James R. Twine22-Aug-07 1:53

James R. Twine

22-Aug-07 1:53

Well, I believe that doing a SELECT * is less optimal that doing a SELECT 1 because less data has to be processed/returned if you are just testing for the existance of something. That aside, I would try using SELECT 1 and maybe even an EXISTS test to return a rowset:

SELECT 1 FROM TABLE WHERE FIELDNAME = 'CONDITION'
 
SELECT 1 FROM TABLE WHERE EXISTS( SELECT * FROM TABLE WHERE FIELDNAME = 'CONDITION' )

I have had the unfortunate experience of working with multiple RDBMSes and you sometimes have to do something obscure like the above in order to make things works everywhere. If even the above calls fail, try executing the query within an EXEC statement (this is a problem I have had with Sybase RDBMSes).

Peace!

Re: ODBC & C++ Question

Programm3r23-Aug-07 1:38

Programm3r

23-Aug-07 1:38

Hi James,

Thanks for the reply, I'll try it and see what I can do.

Many Thanks
Regards,

The only programmers that are better that C programmers are those who code in 1's and 0's Green Alien | [Alien]

Programm3r
My Blog: ^_^

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