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Below is apart of my program:
else
{
SktAddr.sin_family=AF_INET;
SktAddr.sin_port=htons(ReadPortNo("[TCP.FLDATA.SRV.COMMUNICATION]"));
SktAddr.sin_addr.s_addr=htonl(INADDR_ANY)
But it have the error below:
error C2227: left of '.sin_family' must point to class/struct/union
error C2227: left of '.sin_port' must point to class/struct/union
error C2227: left of '.sin_addr' must point to class/struct/union
error C2227: left of '.s_addr' must point to class/struct/union
Can teach me how to solve these problem.....
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1983ttj wrote:
SktAddr.sin_family=AF_INET;
Is SktAddr a class, or an instance of a class ? If it's a class, make an instance, and if it's an instance, include the header to tell this code what it means.
Christian Graus - Microsoft MVP - C++
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how to know that SktAddr is a class? how to make an instance?
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1983ttj wrote:
how to know that SktAddr is a class?
Well, if it's not an instance, it's a class.
A class definition looks like this
class MyClass
{
/....
An instance looks like this
MyClass myClass;
The capitalisation is not important, except in that the language is case sensitive. That is, an instance can start with a capital, and a class with lowercase.
Christian Graus - Microsoft MVP - C++
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I have a dialog and only got one start button. I do some program about ListenThread and got around 4 errors. All of the errors is about undefined identifier.I don't know how and where to declare it. In the Dlg.h file?
Below is apart of my code:
UINT ListenThread(LPVOID lParam)
{
char szMessage[300];
wsprintf(szMessage, "(ListenThread) - Starting TCP/IP Initialisations.");
//WriteSysLog(szMessage);
ServerSkt = socket ( AF_INET, SOCK_STREAM, 0 );
return 0;
}
I have header files as shown below:
Resource.h
StdAfx.h
TCPTest.h
TCPTeseDlg.h
and the errors are below
error C2065: 'ServerSkt' : undeclared identifier
error C2065: 'socket' : undeclared identifier
error C2065: 'AF_INET' : undeclared identifier
error C2065: 'SOCK_STREAM' : undeclared identifier
Error executing cl.exe.
where should I declare ?
-- modified at 0:09 Wednesday 31st August, 2005
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What is SktAddr ? Is it a class ? Is it an instance of a class ? Is it something you copied out of a book and you have no idea what it is ?
Christian Graus - Microsoft MVP - C++
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I was given a source code from my supervisor and the source code have around three thousand of line. He want me to break some of the source code into a simple program. So I designed a dialog with a start button and try some part of the source code that my supervisor gave me. And I actually not good in programming so the program got alot of error that I don't know how to solve it.
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That just doesn't work. A large program is littered with dependancies. Your supervisor needs a smack in the head.
1983ttj wrote:
And I actually not good in programming so the program got alot of error that I don't know how to solve it.
I can't believe how many people who are 'not good at programming' are being paid to do it, and left to sink or swim by their supervisors. Buy a book and learn in your own time, then find a better job. Or, just find another job. Seriously. I can't give more specific advice based on what you posted, except to say that you're lost at sea. Ask specific questions, and I'll be glad to help you.
Christian Graus - Microsoft MVP - C++
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-- modified at 4:47 Wednesday 31st August, 2005u create the the application usingDialog based using AppWizard then chooose Windows Socket option it will automatically add #include afxsock.h .u can check it in stdafx.h
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u create the the Dialog based application using AppWizard then chooose Windows Socket option it will automatically add #include <afxsock.h>.u can check it in stdafx.h
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1983ttj wrote:
error C2227: left of '.sin_family' must point to class/struct/union
Do u forget to include afxsock.h/winsock2.h header file in your project....+ also link your project with ws2_32.lib to save project from linker error too.
"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
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We know that you can add a new tab view when you want to add a new source file in visual.net
I also want to do like that.
Could you give me some free example.
Thanks a lot! I do hope you could give me a hand
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The tab control is a basic control, available to any MFC app.
Christian Graus - Microsoft MVP - C++
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Thanks for you reply,but I mean that I want a tabbed view not tab control
And i want a example programme because i am a green hand
Jack
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Searching[^] this very site gave me a number of hits.
Christian Graus - Microsoft MVP - C++
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Hello again guys.
Ok, here's my project situation.
My project launch an application that shows an html page contain japanese letters/characters from the created file. Before the html page launch, there's a hidden process that the html page to be launch is created. I successfully did this process except when the application launch, the html displays unformatted character encoding. I check the html file that has been created and open it in an editor, I see no problem with the html file. In html file, the character set is "euc-jp". But I wonder why, when the application launch, html page displays different from it should be.  I wonder if there's any character encoding rule in writing into a file. I only used the fopen and fwrite function for writing html code in a file.
I would like to ask if someone knows about character set encoding in writing to a file. Any help is much appreciated.
Thanks a lot guys out there.
With great power comes a great responsibility.
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Thanks for the link. I just convert the string I need to write in an html(from CString to BSTR), and it displays correctly.  Though when I open the html file in an editor, it didn't display correctly. Anyway, that's not a big deal. I hope it will display correctly if I open it with Dreamweaver.
Thank you all cp guys. You really help a lot someone like us (beginners in C++/MFC).
More power!
With great power comes a great responsibility.
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Ok. I thought it's ok now, but still not.. I noticed that when the application launch, it display what html file content before an overwriting file process. So this is now my problem, how can I do that the html to be display is the new created one?
Also, when I try to execute the .exe file, it says abnormal program termination. I try to debug, and it detects that a memory leaks happened. I don't know how I will debug this. Another one is several DLL files- no matching symbolic information found. I am really confused with this, I thought it's already ok then suddenly it's not...
With great power comes a great responsibility.
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My project still won't build. I get these two errors:
nafxcw.lib(appcore.obj) : error LNK2001: unresolved external symbol ___argv
nafxcw.lib(appcore.obj) : error LNK2001: unresolved external symbol ___argc
My project statically links to MFC, as otherwise I get a million other errors trying to link to a library we use. It explicitly ignores libcmt.lib, as otherwise it clashes with msvcrt.lib. Any help at all will be greatly appreciated.
Christian Graus - Microsoft MVP - C++
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Are you compiling with /MD set ? You need to if you want to link with msvcrt.lib. I ask because I seem to remember that you said you used /MT and that causes linking with libcmt.lib.
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OK - I have to compile with /MT because otherwise I can't link to an external library I am using. I am explicitly excluding libcmt from my lib list, but if I exclude msvcrt, I get more errors. Does this mean I am still linking with some libraries that use /MD ?
Christian Graus - Microsoft MVP - C++
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Yes, it does. I am really surprised that a library requires you to use /MT. What ever. I use /MD nearly always. What ever. 
All modules need to compile with the same RTL type selected and it looks like it is /MT for you.
Best of luck with it.
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The deal is basically that no matter how often I compiled with /MD, it plain would not link, I suspect the library is linking other stuff that I don't have the source to, and causing this problem there, although the library builds with /MD
Christian Graus - Microsoft MVP - C++
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