GetNetCardID()

[ChrisMillard]

I have seen references to this function in the FiveWin forum. But I get an unresolved external with FWPPC.

Am I missing something or is this function not available.

Is there a simple way to get the MAC Address, or will I have to attempt to write a wrapper for SendARP in C. My C skills are limited unfortunately.

Cheers

Chris Millard

[Antonio Linares]

Chris,

Here you have a working example.

In order to compile it you need to copy this mprapi.h to c:\vce\include\arm\mprapi.h:
http://www.mediafire.com/?sharekey=f67b ... 6e282a0ee8

Also, you have to link this vce library:
echo %vcdir%\lib\arm\iphlpapi.lib >> msvc.tmp

Test.prg

Code: Select all  Expand view

1.  
2. #include "FWCE.ch"
3.  
4. function Main()
5.  
6.    local aInfo := GetNetCardID()
7.    
8.    if ValType( aInfo ) == "C"
9.       MsgInfo( aInfo )
10.    else
11.       MsgInfo( aInfo[ 1 ] )
12.    endif      
13.  
14. return nil
15.  
16. // FiveTech Software (c) 2009
17.  
18. #pragma BEGINDUMP
19.  
20. #include <Windows.h>
21. #include <iphlpapi.h>
22.  
23. #include <hbapi.h>
24. #include <hbapiitm.h>
25.  
26. char * WideToAnsi( WCHAR * cWide );
27.  
28. static PIP_ADAPTER_INFO pAdapterInfo = NULL; // Contains pointer to
29.                                              // current adapter info
30. static void GetMACaddress( void )
31. {
32.   IP_ADAPTER_INFO AdapterInfo[ 16 ];       // Allocate information
33.                                            // for up to 16 NICs
34.   DWORD dwBufLen = sizeof( AdapterInfo );  // Save memory size of buffer
35.  
36.   DWORD dwStatus = GetAdaptersInfo(      // Call GetAdapterInfo
37.             AdapterInfo,                 // [out] buffer to receive data
38.             &dwBufLen);                  // [in] size of receive data buffer
39.   WCHAR wText[ 40 ];
40.   char * szResult;
41.   PHB_ITEM pText = hb_itemNew( NULL );
42.  
43.   pAdapterInfo = AdapterInfo;
44.  
45.   do
46.   {
47.      wsprintf( ( void * ) wText, L"%02X-%02X-%02X-%02X-%02X-%02X",
48.                ( unsigned char * ) pAdapterInfo->Address[ 0 ],
49.                ( unsigned char * ) pAdapterInfo->Address[ 1 ],
50.                ( unsigned char * ) pAdapterInfo->Address[ 2 ],
51.                ( unsigned char * ) pAdapterInfo->Address[ 3 ],
52.                ( unsigned char * ) pAdapterInfo->Address[ 4 ],
53.                ( unsigned char * ) pAdapterInfo->Address[ 5 ] );
54.  
55.      szResult = WideToAnsi( ( WCHAR * ) wText );
56.      hb_itemPutCL( pText, szResult, strlen( szResult ) );
57.      hb_xfree( szResult );
58.      hb_arrayAdd( hb_param( -1, HB_IT_ANY ), pText );
59.  
60.      if( pAdapterInfo->Next )        
61.         pAdapterInfo = pAdapterInfo->Next;    // Progress through
62.      else                                     // linked list
63.         pAdapterInfo = NULL;
64.  
65.   } while( pAdapterInfo );                    // Terminate if last adapter
66. }
67.  
68. HB_FUNC( GETNETCARDID ) // --> nMac netcard ID number
69. {
70.    hb_reta( 0 );
71.    GetMACaddress();
72.  
73.    if( hb_arrayLen( hb_param( -1, HB_IT_ANY ) ) == 1 )
74.       hb_retc( hb_parc( -1, 1 ) );
75. }
76.  
77. #pragma ENDDUMP
78.  

[ChrisMillard]

Thankyou for the quick response, I have had a go this evening but get the following errors when compiling

p:\vce\include\arm\mprapi.h(120) : warning C4068: unknown pragma
p:\vce\include\arm\mprapi.h(1746) : warning C4068: unknown pragma

CEFUNC.prg(1100) : error C2664: 'wsprintfW' : cannot convert parameter 1 from 'void *' to 'unsigned short *'
Conversion from 'void*' to pointer to non-'void' requires an explicit cast
NMAKE : fatal error U1077: 'p:\vce\bin\clarm' : return code '0x2'

Line 1100 is the pAdapterInfo->Address[ 4 ] line of wsprintf although I have had problems before with line numbers not matching the problem in embedded C.

I have tried // the two lines in mprapi.h this removed the warnings but still get the fatal error.

[Antonio Linares]

Chris,

Please replace this and try it again, thanks:

wsprintf( ( void * ) wText

with

wsprintf( ( WCHAR * ) wText

[ChrisMillard]

Got an unresolved external:

CEFUNC.obj : error LNK2019: unresolved external symbol "char * __cdecl WideToAns
i(unsigned short *)" (?WideToAnsi@@YAPADPAG@Z) referenced in function "void __cd
ecl GetMACaddress(void)" (?GetMACaddress@@YAXXZ)

I have seen this before and figured out that placing extern "C" after the includes, solves this problem.

Code: Select all  Expand view

#include <hbapiitm.h>

extern "C"

char * WideToAnsi( WCHAR * cWide );


It now works perfectly, thank you again.

[Antonio Linares]

Chris,

> It now works perfectly, thank you again.

Is it properly showing the MAC address ?

Thanks for your feedback

[ChrisMillard]

Yes the function correctly returns a two element array with the MAC address of the Ethernet adapter and of the Bluetooth adapter.

My device is a TouchStar Technologies, TouchPC Falcon runing Win CE 5.0

[Antonio Linares]

Chris,

>
Yes the function correctly returns a two element array with the MAC address of the Ethernet adapter and of the Bluetooth adapter.
>

very good

Thanks for your feedback

[Maurizio]

Antonio

is it possible have the file c:\vce\include\arm\mprapi.h:

the dawnload is expired

Thanks MAurizio

[Antonio Linares]

Maurizio,

Here it is from VC98 include folder:
http://www.mediafire.com/?zzjnzgzntex

I think it is the one that we used then

[Maurizio]

Thank Antonio

it's works

Maurizio

[Maurizio]

Hello Antonio ,
with the last version (February 2010) I have this warning , and the function GetNetCArdId return a blank string .


Harbour 2.0.0 (Rev. 13372)
Copyright (c) 1999-2010, http://www.harbour-project.org/
Compiling 'macadr.prg' and generating preprocessed output to 'macadr.ppo'...
Lines 1851, Functions/Procedures 1
Generating C source output to 'macadr.c'... Done.
Microsoft (R) C/C++ Optimizing Compiler Version 12.20.9615 for ARM
Copyright (C) Microsoft Corp 1984-2002. All rights reserved.
macadr.c
macadr.prg(80) : warning C4020: 'hb_parc' : too many actual parameters

At line 80 I have -->> hb_retc( hb_parc( -1, 1 ) );

Regards MAurizio

[Antonio Linares]

Maurizio,

It should be:

hb_retc( hb_parvc( -1, 1 ) );

[Antonio Linares]

FWH/samples/getmac.prg