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hi,
i really need help in windows sockets, here is a function i wrote to connect to server:
//----------- Function Implementation --------------------------------
bool ConnectToSocket()
{
if (WSAVERNOTSUPPORTED == WSAStartup(MAKEWORD(2,0),&WSAData))
{
printf("WSAStartup Failed!\r\n");
return FALSE;
}//end if
else
{
printf("WSAStartup Success\r\n");
}//end else
// construct socket
sock = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
if (sock == INVALID_SOCKET)
{
printf("Failed to construct socket!\r\n");
WSACleanup();
return FALSE;
}//end if
else
{
printf("Socket construction....Success\r\n");
}//end else
// fill in socket address struct and connect to server
sa.sin_family = AF_INET;
sa.sin_port = 23;
sa.sin_addr.S_un.S_addr = inet_addr("147.234.12.233");
int iErr = connect( sock,(SOCKADDR *)&sa,sizeof(sa));
return TRUE;
}
it doesn't seem to work ,i dont know why..... also how do i receive and send data????
please help me i am desperate!
tnx a lot
yaron
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there are some possebilities
the first 1 is that the server is not up
you don't check errors at all
in the winsock.h there are list of errors
you can take the error value
(which is unsigned int)and send
it to acheckerror function
which does switch case over all the possebilities
and then know more specific what is
the problem
any way good luck
Rami Buchnik
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I'm new to VC++
I'm working on a project that I took over from someone else.
It a stats program that reads data from a database and uses OleChart
to output a chart, well anyway when the program starts in debug
I get an Assertion failed message, Message is about strcore.cpp on line
519 and on line 479 what I have been doing is ignoring them and the
program loads fine but when I'm running the program and I click on
any of the combo boxs or radio buttons I get another assertion message
about winocc.cpp line 311. Now I don't expect you all to tell me what is worng
but if anyone else has seen this please respond.
BTW the program does work in debug but crashes in the release version ?
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About the strcore.cpp-assertion: if you click on "retry" the debugger-ide jumps to this assertion.
In your debug window you can now switch through the contexts of the caller function; this way you
can find your source which is responsible for this assertion. Maybe you're trying to access a CString-buffer
which is empty or something like that.
About the winocc.cpp: just do it the same way. Run with F5, wait for the crash and check the caller
functions.
About the debug/release thingy: THIS is something really nasty and you will need a lot of luck to
catch such bugs. Sorry 
Chris
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I found the bugs in the release version
and I'm going to try what you said for the debug version.
But most of all thanks for replying.
cmpssp
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Hi
How can I add an message handler for a item I added dynamically in an application's menu. Please help
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Use the ON_COMMAND macro in the message map, like:
ON_COMMAND(IDC_NEW_MENU_ITEM, OnNewMenuItem)
And the function prototype is:
afx_msg void OnNewMenuItem();
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Hi,
I'm writting a FTP Client, using CSocket. And i have problem with the reply format of LIST command.
I tried on some different kinds of FTP server (UNIX, WINDOWS, DOS model), and saw it not the same. Tried to guess the format, but failed.
Who can help me out of this? every suggestion would be appreciated.
Trieu Hai Nguyen
haitrieu@glassegg.com
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Hi,
I too have tried deciphering the result of the LIST command for an FTP client. I even downloaded the latest FTP standard, and guess what, the response to the LIST command is not standard.
My current thought is just to write the data (whatever they send) to a log file that the end user can view. Then the end user can determine if the 'SEND' was successful or not.
If anyone else has a better answer, I'm all ears...
Jeff
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Hi,
how can i add a horizontal scrollbar to the dropdown list of my combobox ?
SetHorizontalExtend() won't do anything, although i have added the style WS_HSCROLL.
Any idea?
TIA Chris
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Hi Chris,
I think SetHorizontalExtent() works only with a combobox in edit+listbox mode, not a drop-down combo.
The problem is that a combobox is actually two controls together and you should set the WS_HSCROLL style of the listbox inside the combobox, which is not simple.
I can't help you more than this, sorry 
Cheers,
Paolo.
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Hello,
I've got a question regarding setup. I need to create a setup for my application and the application is using a SQL server to log some data. How do I install support for the SQL server (if required) and the DSN?
I would appreceate any tips or links to some documentation.
Matthias
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hi,
see in the registery how the DSN is registered and in your install application, add the registery entries to your install application.......
hope this helps ya,
yaron
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Now i want to open dialog for open many files , so i
'm programming that
char filter[] = "Contact Outlook(*.contact)|*.contact||";
CFileDialog fd(TRUE,NULL,NULL,OFN_ALLOWMULTISELECT | OFN_HIDEREADONLY,filter);
After that i will get name of file that i select by coding
if(fd.DoModal() == IDOK){
POSITION p;
p = fd.GetStartPosition();
CString path;
do{
path = fd.GetNextPathName(p);
}while (path != "");
}
But it is error on run time , this program will pop up error-dialog when the program
do line => "path = fd.GetNextPathName(p);"
I think because when fd.GetNextPathName(p) got name of file finished and when it got agin
it does not return NULL but it can't call "fd.GetNextPathName(p)"
I worry about thing very much , Please help me .
Thank you for your help
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I think that the problem comes from your use of the POSITION variable. You should use it like this:
POSITION p = fd.GetStartPosition();
CString path;
while(p){
path = fd.GetNextPathName(p);
...
}
It works like a CObList, for example...
HTH.
K.
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Hi,
I want to set to the font and fontsize for my button and label without MFC. Can anyone pls tell me how to do it
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Here's an example that makes the font bold. This is untested, and it's 3:25 AM, so please test before checking the code in. 
HFONT hCurrFont, hNewFont;
LOGFONT lf;
hCurrFont = (HFONT) SendDlgItemMessage ( hMyDlg, IDC_MY_BUTTON, WM_GETFONT, 0, 0 );
GetObject ( hCurrFont, sizeof(LOGFONT), &lf );
lf.lfWeight = FW_BOLD;
hNewFont = CreateFontIndirect ( &lf );
SendDlgItemMessage ( hMyDlg, IDC_MY_BUTTON, WM_SETFONT, (WPARAM) hNewFont, TRUE );
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Hi,
I want to set to the font and fontsize for my button and label without MFC. Can anyone pls tell me how to do it
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I've noticed the question asked around a lot
but no one seems to answer it, but I'll ask here
There are many packet sniffer and Firewalls for windows, but no free source ones to look at to see how it works
Does anyone have any idea, or tips they would like to share on how one would go by developing one
Thanks for any replies
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Can anyone give me a general idea how I can programatically read various physical numbers from the motherboards Winbond chip. Thinks like cpu temp. or mobo temp.? Or perhaps someone knows where I can get this info.
Thanks.
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HI,
I wonder when a DLL unloads from PHYSICAL memory...
I found that each process which attach a DLL has a
referrence count for use of it..
And when the count becomes zero it is detached from
process and removed from process's VIRTUAL memory
address..
THEN,.....When exactly a loaded DLL unloads?
(I mean when = which state that satisfies its
unloading condition)
Does it unload itself?
OR
Windows OS unloads it?
Thanks in advance..
-Ray
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I think a DLL unloads from physical memory when this memory it's needed. As when Windows loads a DLL, it only reserves the virtual memory and maps it to the DLL. If the DLL was not loaded, when the process access it, it causes a page fault, and automatically Windows loads it into physical memory. I suppose the it's the same process when unloading: removing the DLL from memory if RAM it's not needed is a silly task, as maybe Windows must reload the DLL after removing it. I suppose the RAM pages containing the DLL will be marked as they can be used, but if anybody uses this pages, 'reloading' the DLL into physical memory will be a little effort. If I find more information I'll post another message, or if anybody can assure this or correct me, will be pleased!!! 
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Hi all,
I found following snippet in \vc98\mfc\src\afximpl.h, which looks very interesting:
#define VERSION_WIN4 MAKELONG(0, 4)
#define VERSION_IE3 MAKELONG(70, 4)
#define VERSION_IE4 MAKELONG(71, 4)
#define VERSION_IE401 MAKELONG(72, 4)
extern int _afxComCtlVersion;
DWORD AFXAPI _AfxGetComCtlVersion(); No more determing COMCTL's file version? Instead simply call:
if (_AfxGetComCtlVersion() >= VERSION_IE3)
{
}Or do I misaccept something? Can anybody comment on this?
Thanks in advance,
Thömmi
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That's pretty sweet! I'd say you're right on the money.
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I am making a small application that has an system tray icon. I have created two menu one dynamically and another from resource. But I can't connect the two menu's to the tray icon. The problem is when I move the mouse over the icon without even clicking the menu from resource is popping up. I am using TrackPopupMenu(). Can you help
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