Damn CSocket - C / C++ / MFC Discussion Boards

Anonymous17-Oct-02 7:26

17-Oct-02 7:26

I have done some test to send and receive bitmap with socket but i have problem;
if somebody has some idea can response.

Re: Image

jmkhael17-Oct-02 7:53

jmkhael

17-Oct-02 7:53

For the client server i recomend u using:
http://www.codeproject.com/internet/ndk.asp

The just read the file into a buffer and send it to the client

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

property page data

Kash17-Oct-02 6:56

Kash

17-Oct-02 6:56

Hi,
I have embedded a property sheet inside CFormView and have inserted several Property Pages. I want to access data in the first property page from the 2nd Page?

Any suggestions?
Kash

Re: property page data

Pavel Klocek17-Oct-02 7:59

Pavel Klocek

17-Oct-02 7:59

((CMySheet*)GetParent())->m_Page1

Pavel
Sonork 100.15206

searching for a string in ram and altering

Kuniva17-Oct-02 6:32

Kuniva

17-Oct-02 6:32

I want to search the memory when an application is running for a string value and alter it, but i have no idea on how to start. I realise i'd have to look for the WORDs the string is composed off but i dont know how to access the memory, let alone search it. I am trying to make a trainer program for a game. Can anyone help me on this?

Thanks

Kuniva
--------------------------------------------

Re: searching for a string in ram and altering

Maximilien17-Oct-02 7:25

Maximilien

17-Oct-02 7:25

Kuniva wrote:
Can anyone help me on this?

No, that's cheating ! Mad | :mad:

BTW, I don't know how to do this, so if anyone can tell us !

Max.

Re: searching for a string in ram and altering

nidis23-Oct-02 2:06

nidis

23-Oct-02 2:06

Try using DebugActiveProcess to atach to the process.

After this call your application will be like a debugger and will be able to stop execution and inspect it's virtual memory.

There is a complete section in the platform SDK dedicated to the debugging API in windows.

Cheers

Damn CSocket

Anonymous17-Oct-02 6:23

Anonymous

17-Oct-02 6:23

How do you catch a connection error in CSocket?? It doesn't seem possible..

CSocket sSocket;
sSocket.Create();
int iCon = sSocket.Connect("some.dns.com", 21);
if(iCon != 0)
    MessageBox("Error Connecting");

or

if(iCon == SOCKET_ERROR)
   MessageBox("Error Connecting");

Even if the address doesn't exist it will allways return a 0. (success)

I derived my own CSocket class and and over rode OnConnect(int nErrorCode) so that if it returns a error I post the message and if it doesn't error run a function.. it never returns anything..

The only reason I am using CSocket is because I need to use CSocketFile and CArchive..

Any ideas?? Or is this how it's supposed to work?

Re: Damn CSocket

Stephane Rodriguez.17-Oct-02 6:35

Stephane Rodriguez.

17-Oct-02 6:35

Here is internal MFC code executed by the Create() call :

BOOL CAsyncSocket::Create(UINT nSocketPort, int nSocketType,
	long lEvent, LPCTSTR lpszSocketAddress)
{
  if (Socket(nSocketType, lEvent))
  {
    if (Bind(nSocketPort,lpszSocketAddress))
      return TRUE;
    int nResult = GetLastError();
    Close();
    WSASetLastError(nResult);
  }
  return FALSE;
}

And you still wonder why it always returns 0. Come on.... Big Grin | :-D

From this code, it's also clear you can call either ::GetLastError() or ::WSAGetLastError() to get the actual error.

How low can you go ?
(MS retrofuck)

Re: Damn CSocket

Anonymous17-Oct-02 6:51

Anonymous

17-Oct-02 6:51

Thanks! Worked like a champ.

CListCtrl's rows colors

RuiSantiago17-Oct-02 6:23

RuiSantiago

17-Oct-02 6:23

Hi,

My name is Rui, and i'm developing an MFC application with VC.NET.

I would like to change, by code, the back color of a certain line or item.
I read some articles on the subject, but i still can't, i found some solution very dificult...

Thank you for your time

Rui

API and hardware

viliam17-Oct-02 5:57

viliam

17-Oct-02 5:57

Are here any API function to get serial numbers
or IDs of hardware in computer. (VGA, Memory, HD and so on)
Thank you
Viliam

Message Window

Aaron Schaefer17-Oct-02 5:52

Aaron Schaefer

17-Oct-02 5:52

Hi All,

I'm trying to implement a message window, like the one in Visual Studio, without the tabs, though. I've got a CDialogBar member in my main frame class, with an embedded rich edit control. How do I send text to a rich edt control programmatically? I was using a list control, but didn't like the way this worked, since it didn't give many formatting options. I thought about using a regular edit control, but then I couldn't do fancy formatting either.

Thanks

Aaron

Re: Message Window

Chris Richardson17-Oct-02 7:18

Chris Richardson

17-Oct-02 7:18

AFAIK, you can call SetWindowText on the rich edit control, but this is probably inefficient. Try looking up the CRichEditCtrl member StreamIn, or the windows message EM_STREAMIN.

Chris Richardson

Re: Message Window

Aaron Schaefer17-Oct-02 8:20

Aaron Schaefer

17-Oct-02 8:20

StreamIn seems to work OK. Thanks

Cleanly discover if a CD is in the CDROM

Paul Farry17-Oct-02 4:39

Paul Farry

17-Oct-02 4:39

I'm working on a little security program to ensure that invalid CD's do not get inserted into our SOE machines, and to enable this I'm building a little program to manage adding a link to the users start menu.

What I need to know is there an easy way to detect if there is a CD ROM Inserted.

I've been playing with CreateFile for the purpose which is fine, to ascertain that the actual CD that is currently in the Drive is invalid, BUT if there is no disk at all, then a No Disk in CD warning is displayed by the operating system.

Is there a way to disable the Warning(temporarily) or a better way to check for the prescence of a disk?

Thanks for any help.

Re: Cleanly discover if a CD is in the CDROM

Tomasz Sowinski17-Oct-02 4:45

Tomasz Sowinski

17-Oct-02 4:45

Try to call SetErrorMode with SEM_FAILCRITICALERRORS flag. It works with floppies, probably will with CD drive as well.

Tomasz Sowinski -- http://www.shooltz.com

*** Purgamentum init, exit purgamentum ***

Re: Cleanly discover if a CD is in the CDROM

Paul Farry17-Oct-02 4:48

Paul Farry

17-Oct-02 4:48

thanks so much... this is perfect..
and to make it normal again after my check I just call
SetErrorMode(0);

Re: Cleanly discover if a CD is in the CDROM

Michael Dunn17-Oct-02 5:36

Michael Dunn

17-Oct-02 5:36

Not exactly. SetErrorMode(0) returns the current error mode - I don't know why that behavior has been removed from MSDN. So the correct way is:

UINT uOldMode = SetErrorMode(0);
 
  // Add "fail critical errors" to current error handling
  SetErrorMode ( uOldMode | SEM_FAILCRITICALERRORS );
 
  // check CD here...
 
  // Restore old mode
  SetErrorMode ( uOldMode );

And no I don't know why they didn't just provide a GetErrorMode() API. Wink | ;)

--Mike--
"I'd rather you just give me a fish today, because even if you teach me how to fish, I won't do it. I'm lazy." -- Nish
Just released - 1ClickPicGrabber - Grab & organize pictures from your favorite web pages, with 1 click!
My really out-of-date homepage
Sonork-100.19012 Acid_Helm

Re: Cleanly discover if a CD is in the CDROM

Brian Delahunty17-Oct-02 6:16

Brian Delahunty

17-Oct-02 6:16

Mike. Your knowledge always astounds me. No wonder your a MVP.

Regards,
Brian Dela Smile | :)

Re: Cleanly discover if a CD is in the CDROM

Michael Dunn19-Oct-02 9:19

Michael Dunn

19-Oct-02 9:19

Thanks, Brian, but I don't think that was me on the awards list. I don't exactly have a unique name, and no one's ever contacted me in email about it. Frown | :(

Re: Cleanly discover if a CD is in the CDROM

Brian Delahunty19-Oct-02 23:37

Brian Delahunty

19-Oct-02 23:37

Michael Dunn wrote:
but I don't think that was me on the awards list.

Well it should have been you. Smile | :)

Is there anyway you could find out if it was?

Regards,
Brian Dela Smile | :)

Unicode Resource Editor

olivier17-Oct-02 4:20

olivier

17-Oct-02 4:20

does someone know a good Unicode Resource Editor ?
Thanks
Olivier

Re: Unicode Resource Editor

l a u r e n17-Oct-02 4:32

l a u r e n

17-Oct-02 4:32

ummmmm huh?
for text? u mean foreign languages? or what?
Roll eyes | :rolleyes:

"... and so i said to him ... if it don't dance (or code) and you can't eat it either f**k it or throw it away"
biz stuff about me

Re: Unicode Resource Editor

Anonymous17-Oct-02 4:38

Anonymous

17-Oct-02 4:38

well I have Translated a rc file into japanese.
The problem is that the width of some resource is too small. So I have to resize it and I would like to do it "graphically" with an editor and not directly into the rc file by changing it, compiling it and then to see it in my software ....

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