DLL

[Antonio Linares]

Maurizio,

Try it this way:

c:\vce\bin\link /IMPLIB:rchglobe.dll /OUT:rchglobe.lib

[Enrico Maria Giordano]

Maurizio,

Try it this way:

c:\vce\bin\link /IMPLIB:rchglobe.dll /OUT:rchglobe.lib

This is the result:

Microsoft (R) Incremental Linker Version 6.24.3077
Copyright (C) Microsoft Corporation. All rights reserved.

LINK : warning LNK4001: no object files specified; libraries used
LINK : warning LNK4068: /MACHINE not specified; defaulting to X86
LINK : fatal error LNK1561: entry point must be defined

EMG

[Antonio Linares]

The above was wrong. This should be the right way:

c:\vce\bin\lib /list:rchglobe.def rchglobe.dll

c:\vce\bin\lib /def:rchglobe.def /out:rchglobe.lib /machine:arm /subsystem:windowsce

[Antonio Linares]

To create the DEF file, better use Borland:

impdef.exe rchglobe.def rchglobe.dll

and then use Microsoft lib as explained

[Enrico Maria Giordano]

To create the DEF file, better use Borland:

impdef.exe rchglobe.def rchglobe.dll

and then use Microsoft lib as explained

Ok, the lib is created (but it was with my command too).

Maurizio please try it.

EMG

[Antonio Linares]

Enrico,

ops, I missed your command

[Enrico Maria Giordano]

Enrico,

ops, I missed your command

No problem. My command doesn't work anyway. The lib is created but errors out when is linked to the application.

EMG

[Maurizio]

Thank Antonio and Enrico

Now I have the LIB , and I cann link it without problem .

I try this function

#pragma BEGINDUMP

#include <hbapi.h>

HB_FUNC( RCHSENDDATA )
{
hb_retnl( RCHSendData( hb_parc( 1 ), hb_parc( 2 ) ) );
}

#pragma ENDDUMP

But I have this error :

RCH.obj : error LNK2019: unresolved external symbol "int __cdecl RCHOpen(void)" (?RCHOpen@@YAHXZ) referenced in function "void __cdecl HB_FUN_RCHOpen(void)" (?HB_FUN_RCHOpen@@YAXXZ)
RCH.exe : fatal error LNK1120: 1 unresolved externals
//---------------------------------------------------------------------------
I Try this function

#pragma BEGINDUMP

#include <hbapi.h>
#include <windows.h>
int RCHOpen( void );

HB_FUNC( RCHOpen )
{
hb_retnl( RCHOpen() );
}

#pragma ENDDUMP



Creating library RCH.lib and object RCH.exp
RCH.obj : error LNK2019: unresolved external symbol "int __cdecl RCHOpen(void)" (?RCHOpen@@YAHXZ) referenced in function "void __cdecl HB_FUN_RCHOpen(void)" (?HB_FUN_RCHOpen@@YAXXZ)
RCH.exe : fatal error LNK1120: 1 unresolved externals

What is my error ?

Regards MAurizio

[Enrico Maria Giordano]

It seems a name-mangling problem as if the lib was compiled in C++.

EMG

[Antonio Linares]

Maurizio,

You have to include this in your code before your HB_FUNC()s:

Code: Select all  Expand view

extern "C" {
LONG RCHSendData( LPSTR, LPSTR );
LONG RCHOpen( void );
LONG RCHClose( void );
}


[Maurizio]

Thank Antonio
Now I have this error

RCH.prg(317) : error C2556: 'int __cdecl RCHOpen(void)' : overloaded function di
ffers only by return type from 'long __cdecl RCHOpen(void)'
RCH.prg(309) : see declaration of 'RCHOpen'
RCH.prg(317) : error C2371: 'RCHOpen' : redefinition; different basic types
RCH.prg(309) : see declaration of 'RCHOpen'
RCH.prg(324) : error C2556: 'int __cdecl RCHOpen(void)' : overloaded function di
ffers only by return type from 'long __cdecl RCHOpen(void)'
RCH.prg(309) : see declaration of 'RCHOpen'
NMAKE : fatal error U1077: 'c:\vce\bin\clarm' : return code '0x2'
---------------------------------------------------------------------------
This is the source

#pragma BEGINDUMP
#include <Windows.h>
#include <hbapi.h>
extern "C" {
LONG RCHSendData( LPSTR, LPSTR );
LONG RCHOpen( void );
LONG RCHClose( void );
}
HB_FUNC(RCHSENDDATA)
{
hb_retnl(RCHSendData(hb_parc(1),hb_parc(2)));
}

int RCHOpen( void );

HB_FUNC( RCHOpen )
{
hb_retnl( RCHOpen() );
}

int RCHOpen( void );
HB_FUNC( RCHOClose )
{
hb_retnl( RCHOpen() );
}
#pragma ENDDUMP

[Antonio Linares]

Maurizio,

Remove these lines from your code:

Code: Select all  Expand view

// int RCHOpen( void );  this!

HB_FUNC( RCHOpen )
{
hb_retnl( RCHOpen() );
}

// int RCHOpen( void ); this!

HB_FUNC( RCHOClose )
{
hb_retnl( RCHOpen() );
}


[Antonio Linares]

BTW,

This is wrong:

HB_FUNC( RCHOClose )
{
hb_retnl( RCHOpen() );
}

it should be

HB_FUNC( RCHClose )
{
hb_retnl( RCHClose() );
}

[Antonio Linares]

Finally, please use uppercase for names HB_FUNC ( ...Uppercase!... )

i.e.:

HB_FUNC( RCHCLOSE )

[Maurizio]

Wow !!
Finally, thanks to your help the link to the LIB works.

Many, many thanks to Antonio and Enrico for your assistance.

The strange thing is that when I linked the LIB and inserted the code to
call the functions in the LIB, the calls to the DLL now works.
This might explain the reason why the calls to the DLL did not work before?

Maurizio