My Client Server TCP/IP chat project needs help

[LesterPH]

Sir I cannot modify the code in chat example S60, it has to many errors when I try to use the StatL() function under ChatInet.. any solution? I am trying to insert the function under class ChatInet but unfortunately It says undefined even though I already included all of its header files. And also I wanna know what does the carbide first execute when we compile the project, like main.cpp in c++...

[LesterPH]

Sir I cannot modify the code in chat example S60, it has to many errors when I try to use the StatL() function under ChatInet.. any solution? I am trying to insert the function under class ChatInet but unfortunately It says undefined even though I already included all of its header files. And also I wanna know what does the carbide first execute when we compile the project, like main.cpp in c++...

tnx

[Nitesh Bhardwaj]

Sir I cannot modify the code in chat example S60, it has to many errors when I try to use the StatL() function under ChatInet.. any solution?

what errors you are getting?

I am trying to insert the function under class ChatInet but unfortunately It says undefined even though I already included all of its header files.

did you defined it in .h file?

And also I wanna know what does the carbide first execute when we compile the project, like main.cpp in c++...

if you mean entry point, then its

GLDEF_C TInt E32Main()

[symbianyucca]

it might be easier if you would just descripe the actual errors, then somebody might be able to help.

Anyway, the code is compiled first and once it is executed, it starts executing from the entry point, though if you have compilation errors then there is nothing that could actually be executed produced.

[LesterPH]

Sir the Chat Example was successfully compiled. and I was able to install it on my Nokia Phone.

Now I am coding my project, I am already finished with the GUI using carbide. I wanna know what does the entry point of the chat example when compiled.
Chat.cpp
ChatApp.cpp
ChatDocument.cpp
etc.

like main.cpp in qt.

and the code i was referring to is this:
void CChatInet::StartL()
{
if ( State() != EDisconnected )
{
User::Leave( KErrInUse );
}

User::LeaveIfError( iConnection.Open( iSocketServer, KAfInet) );

User::LeaveIfError( iConnection.Start() );

TInt result( 0 );

result = iSocket.Open( iSocketServer,
KAfInet,
KSockStream,
KProtocolInetTcp );

if ( result != KErrNone )
{
iSocketServer.Close();
User::Leave( result );
}

TInetAddr addr;
iAddress.SetPort( iPort );
iAddress.SetFamily( KAfInet );

// bind
User::LeaveIfError( iSocket.Bind( iAddress ) );

// listen
User::LeaveIfError( iSocket.Listen( KListeningQueSize ) );

// close old connection - if any
iAcceptedSocket.Close();

// Open abstract socket
User::LeaveIfError( iAcceptedSocket.Open( iSocketServer ) );

iActiveSocket = &iAcceptedSocket;

// Set the Active Object's State to Connecting indicated.
SetState( EGettingConnection );

iSocket.Accept( iAcceptedSocket, iStatus );

SetServer( ETrue );

// Set the Active Object Active again,
SetActive();

}

I wanna use this function under the class ChatInet.cpp

How will I call it in the event handler generated by Carbide in my GUI.

tnx...

[LesterPH]

I am already finished with the GUI using carbide. I wanna know what does the entry point of the chat example when compiled.
Chat.cpp
ChatApp.cpp
ChatDocument.cpp
etc.

like main.cpp in qt.

and the code i was referring to is this:
void CChatInet::StartL()
{
if ( State() != EDisconnected )
{
User::Leave( KErrInUse );
}

User::LeaveIfError( iConnection.Open( iSocketServer, KAfInet) );

User::LeaveIfError( iConnection.Start() );

TInt result( 0 );

result = iSocket.Open( iSocketServer,
KAfInet,
KSockStream,
KProtocolInetTcp );

if ( result != KErrNone )
{
iSocketServer.Close();
User::Leave( result );
}

TInetAddr addr;
iAddress.SetPort( iPort );
iAddress.SetFamily( KAfInet );

// bind
User::LeaveIfError( iSocket.Bind( iAddress ) );

// listen
User::LeaveIfError( iSocket.Listen( KListeningQueSize ) );

// close old connection - if any
iAcceptedSocket.Close();

// Open abstract socket
User::LeaveIfError( iAcceptedSocket.Open( iSocketServer ) );

iActiveSocket = &iAcceptedSocket;

// Set the Active Object's State to Connecting indicated.
SetState( EGettingConnection );

iSocket.Accept( iAcceptedSocket, iStatus );

SetServer( ETrue );

// Set the Active Object Active again,
SetActive();

}

I wanna use this function under the class ChatInet.cpp

How will I call it in the event handler generated by Carbide in my GUI.

I already defined all the necessary header files.

tnx

[symbianyucca]

if it is Symbian C++ application, then the Application class is made first, then document class and then application UI class. Your own codes propably are started in AppUi's ConstructL function.

[LesterPH]

I encounter undefined function when I try to call the function on my GUI.

[Nitesh Bhardwaj]

I encounter undefined function when I try to call the function on my GUI.

you need to define it in CChatInet.h file like,

void StartL();

[I am already finished with the GUI using carbide. I wanna know what does the entry point of the chat example when compiled

already told it should be

GLDEF_C TInt E32Main()

in Chat.cpp.

[wizard_hu_]

Is the file ChatInet.cpp referenced in your .mmp file (as SOURCE)?

[LesterPH]

thanks for all your help... I was able to understand the flow of carbide's compilation.

If Im not mistaken the carbide first execute GLDEF_C TInt E32Main() from ChatApplication.cpp->ChatDocument.cpp->ChatAppUI.cpp.

I think I already included all the needed header. but i still can't use the function StarL().

I didn't define void StartL() because I included the header file of ChatInet.h. I think it is already defined in that header file.

I want to know how to call a function when it is inside another .cpp or antother class....

tnx

[symbianyucca]

you should propably read basics of C++ and object orientation. Generally you would need to construct the object that implements the function before you can use it.

[LesterPH]

sir tnx for the reply the object is already constructed. chatinet has its 2 phase constructor...

[symbianyucca]

so then you have an intance of it, most likely you should then store the object so you can delete it after you nolonger need it. And as you have the instance of the object, you can use all public function from it directly, thus, could you explain in details on what the problem that you are encountering is actually ?

[LesterPH]

Sir, I still can't add the function StartL() of class CChatInet. I can't call it even if I already added all the required header files.

Inside my made AppUI I wanna call the function trough StartL()

The construct L of the original AppUI code is:

// ----------------------------------------------------------
// CChatAppUi::ConstructL()
//
// ----------------------------------------------------------
//
void CChatAppUi::ConstructL()
{
BaseConstructL( CAknAppUi::EAknEnableSkin );
.
iAppContainer = CChatContainer::NewL( ClientRect() ); ---> will copy this to the constructor of my UI?

// so view can update scroll bars
iAppContainer->SetMopParent( this );

AddToStackL( iAppContainer );

iChatBt = CChatBt::NewL( *iAppContainer );
iChatInet = CChatInet::NewL( *iAppContainer ); ---> will copy this to the constructor of my UI? whats my pointer here? is it still my chat ui container?

// check whether BT is available or not

RSdp sdpSession;

if ( sdpSession.Connect() == KErrNone )
{
sdpSession.Close();

iBtAvailable = ETrue;
}
else
{
iBtAvailable = EFalse;
}
}