TIdTCPClient Base Class

Thread View: borland.public.cppbuilder.internet.socket

3 messages

[T] Back to Threads [V] Tree View [G] Group Articles

3 total messages Started by Curt Fri, 09 Sep 2005 02:25

#3507

Author: Curt
Date: Fri, 09 Sep 2005 02:25

47 lines
2064 bytes

I am trying to derive a very simple class from TIdTCPClient but I get the
error

Unresolved external '__fastcall IdTcpclient::TIdTCPClient::SetPortA(const
int)' referenced from c:\...\unit2.obj.

Does anyone have any idea why I get this error ?

Here are the steps I take:
1) New Application
2) New Unit
3) The following code in the new unit (.H and .C)


              .H
//--------------------------------------------------------------------------
-
#ifndef Unit2H
#define Unit2H
//--------------------------------------------------------------------------
-
#include <winsock2>        // just to cover for multiple fd_set error
#include <IdBaseComponent.hpp>
#include <IdComponent.hpp>
#include <IdTCPClient.hpp>
#include <IdTCPConnection.hpp>

class TTest : public Idtcpclient::TIdTCPClient
{
public:
  __fastcall virtual TTest(Classes::TComponent* AOwner);
};
#endif


        .C
//--------------------------------------------------------------------------
-
#pragma hdrstop
#include "Unit2.h"
//--------------------------------------------------------------------------
-
#pragma package(smart_init)
__fastcall TTest::TTest(Classes::TComponent* AOwner) : TIdTCPClient(AOwner)
{
};

Re: TIdTCPClient Base Class

#3508

Author: Remy Lebeau (TeamB)
Date: Fri, 09 Sep 2005 03:40

18 lines
1554 bytes

"Curt" <noemailaddress> wrote in message
news:4320f1c9$1@newsgroups.borland.com...

> Unresolved external '__fastcall IdTcpclient::TIdTCPClient::SetPortA(const
> int)' referenced from c:\...\unit2.obj.

Known problem.  It is a Win32 API "bug", not an Indy bug.  winspool.h
declares a #define statement that maps SetPort() to SetPortA() or SetPortW()
depending on whether UNICODE is declared.  #define statements are global,
effecting the entire application.

If you go to http://search.borland.com and http://www.deja.com and search
for "SetPortA", you will see that this issue has been discussed many times
before.


Gambit

Re: TIdTCPClient Base Class

#3509

Author: Curt
Date: Fri, 09 Sep 2005 03:54

26 lines
1739 bytes

Thank you.

"Remy Lebeau (TeamB)" <no.spam@no.spam.com> wrote in message
news:43210433@newsgroups.borland.com...
>
> "Curt" <noemailaddress> wrote in message
> news:4320f1c9$1@newsgroups.borland.com...
>
> > Unresolved external '__fastcall
IdTcpclient::TIdTCPClient::SetPortA(const
> > int)' referenced from c:\...\unit2.obj.
>
> Known problem.  It is a Win32 API "bug", not an Indy bug.  winspool.h
> declares a #define statement that maps SetPort() to SetPortA() or
SetPortW()
> depending on whether UNICODE is declared.  #define statements are global,
> effecting the entire application.
>
> If you go to http://search.borland.com and http://www.deja.com and search
> for "SetPortA", you will see that this issue has been discussed many times
> before.
>
>
> Gambit
>
>

Thread Navigation

This is a paginated view of messages in the thread with full content displayed inline.

Messages are displayed in chronological order, with the original post highlighted in green.

Use pagination controls to navigate through all messages in large threads.

Back to All Threads