Unable to compile PCAP Program in Visual studio - c++

Question

Following is the code to retrieve MAC addresses from my AirPcap Adapter. But I am facing issues when executing the program: Please help me in resolving this error.
#include <stdio.h>
#include <conio.h>
#include "packet32.h"
#include <ntddndis.h>
#include "StdAfx.h"
#define Max_Num_Adapter 10
char AdapterList[Max_Num_Adapter][1024];
int main()
{
LPADAPTER lpAdapter = 0;
int i;
DWORD dwErrorCode;
WCHAR AdapterName[8192];
WCHAR *temp,*temp1;
int AdapterNum=0,Open;
ULONG AdapterLength;
PPACKET_OID_DATA OidData;
BOOLEAN Status;
//
// Obtain the name of the adapters installed on this machine
//
printf("Packet.dll test application. Library version:%s\n", PacketGetVersion());
printf("Adapters installed:\n");
i=0;
AdapterLength = sizeof(AdapterName);
if(PacketGetAdapterNames(AdapterName,&AdapterLength)==FALSE){
printf("Unable to retrieve the list of the adapters!\n");
return -1;
}
temp=AdapterName;
temp1=AdapterName;
while ((*temp!='\0')||(*(temp-1)!='\0'))
{
if (*temp=='\0')
{
memcpy(AdapterList[i],temp1,temp-temp1);
temp1=temp+1;
i++;
}
temp++;
}
AdapterNum=i;
for (i=0;i<AdapterNum;i++)
printf("\n%d- %s\n",i+1,AdapterList[i]);
printf("\n");
do
{
printf("Select the number of the adapter to open : ");
scanf_s("%d",&Open);
if (Open>AdapterNum) printf("\nThe number must be smaller than %d",AdapterNum);
} while (Open>AdapterNum);
//
// Open the selected adapter
//
lpAdapter = PacketOpenAdapter(AdapterList[Open-1]);
if (!lpAdapter || (lpAdapter->hFile == INVALID_HANDLE_VALUE))
{
dwErrorCode=GetLastError();
printf("Unable to open the adapter, Error Code : %lx\n",dwErrorCode);
return -1;
}
//
// Allocate a buffer to get the MAC adress
//
OidData = (PPACKET_OID_DATA)malloc(6 + sizeof(PACKET_OID_DATA));
if (OidData == NULL)
{
printf("error allocating memory!\n");
PacketCloseAdapter(lpAdapter);
return -1;
}
//
// Retrieve the adapter MAC querying the NIC driver
//
OidData->Oid = OID_802_3_CURRENT_ADDRESS;
OidData->Length = 6;
ZeroMemory(OidData->Data, 6);
Status = PacketRequest(lpAdapter, FALSE, OidData);
if(Status)
{
printf("The MAC address of the adapter is %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",
(OidData->Data)[0],
(OidData->Data)[1],
(OidData->Data)[2],
(OidData->Data)[3],
(OidData->Data)[4],
(OidData->Data)[5]);
}
else
{
printf("error retrieving the MAC address of the adapter!\n");
}
free(OidData);
PacketCloseAdapter(lpAdapter);
return (0);
}
Following are the errors:
1>------ Build started: Project: qqq, Configuration: Release Win32 ------
1>Build started 5/29/2015 3:10:00 PM.
1>InitializeBuildStatus:
1> Touching "Release\qqq.unsuccessfulbuild".
1>ClCompile:
1> All outputs are up-to-date.
1> ppp.cpp
1>ppp.cpp(35): warning C4627: '#include <conio.h>': skipped when looking for precompiled header use
1> Add directive to 'StdAfx.h' or rebuild precompiled header
1>ppp.cpp(36): warning C4627: '#include "packet32.h"': skipped when looking for precompiled header use
1> Add directive to 'StdAfx.h' or rebuild precompiled header
1>ppp.cpp(37): warning C4627: '#include <ntddndis.h>': skipped when looking for precompiled header use
1> Add directive to 'StdAfx.h' or rebuild precompiled header
1>ppp.cpp(44): error C2065: 'LPADAPTER' : undeclared identifier
1>ppp.cpp(44): error C2146: syntax error : missing ';' before identifier 'lpAdapter'
1>ppp.cpp(44): error C2065: 'lpAdapter' : undeclared identifier
1>ppp.cpp(46): error C2065: 'DWORD' : undeclared identifier
1>ppp.cpp(46): error C2146: syntax error : missing ';' before identifier 'dwErrorCode'
1>ppp.cpp(46): error C2065: 'dwErrorCode' : undeclared identifier
1>ppp.cpp(47): error C2065: 'WCHAR' : undeclared identifier
1>ppp.cpp(47): error C2146: syntax error : missing ';' before identifier 'AdapterName'
1>ppp.cpp(47): error C2065: 'AdapterName' : undeclared identifier
1>ppp.cpp(48): error C2065: 'WCHAR' : undeclared identifier
1>ppp.cpp(48): error C2065: 'temp' : undeclared identifier
1>ppp.cpp(48): error C2065: 'temp1' : undeclared identifier
1>ppp.cpp(50): error C2065: 'ULONG' : undeclared identifier
1>ppp.cpp(50): error C2146: syntax error : missing ';' before identifier 'AdapterLength'
1>ppp.cpp(50): error C2065: 'AdapterLength' : undeclared identifier
1>ppp.cpp(51): error C2065: 'PPACKET_OID_DATA' : undeclared identifier
1>ppp.cpp(51): error C2146: syntax error : missing ';' before identifier 'OidData'
1>ppp.cpp(51): error C2065: 'OidData' : undeclared identifier
1>ppp.cpp(52): error C2065: 'BOOLEAN' : undeclared identifier
1>ppp.cpp(52): error C2146: syntax error : missing ';' before identifier 'Status'
1>ppp.cpp(52): error C2065: 'Status' : undeclared identifier
1>ppp.cpp(58): error C3861: 'PacketGetVersion': identifier not found
1>ppp.cpp(63): error C2065: 'AdapterLength' : undeclared identifier
1>ppp.cpp(63): error C2065: 'AdapterName' : undeclared identifier
1>ppp.cpp(63): error C2070: ''unknown-type'': illegal sizeof operand
1>ppp.cpp(65): error C2065: 'AdapterName' : undeclared identifier
1>ppp.cpp(65): error C2065: 'AdapterLength' : undeclared identifier
1>ppp.cpp(65): error C2065: 'FALSE' : undeclared identifier
1>ppp.cpp(65): error C3861: 'PacketGetAdapterNames': identifier not found
1>ppp.cpp(69): error C2065: 'temp' : undeclared identifier
1>ppp.cpp(69): error C2065: 'AdapterName' : undeclared identifier
1>ppp.cpp(70): error C2065: 'temp1' : undeclared identifier
1>ppp.cpp(70): error C2065: 'AdapterName' : undeclared identifier
1>ppp.cpp(72): error C2065: 'temp' : undeclared identifier
1>ppp.cpp(72): error C2065: 'temp' : undeclared identifier
1>ppp.cpp(72): fatal error C1903: unable to recover from previous error(s); stopping compilation
1> qqq.cpp
1>qqq.cpp(36): warning C4627: '#include <conio.h>': skipped when looking for precompiled header use
1> Add directive to 'StdAfx.h' or rebuild precompiled header
1>qqq.cpp(155): error C3861: '_kbhit': identifier not found
1>qqq.cpp(197): error C2440: '=' : cannot convert from 'PVOID' to 'char *'
1> Conversion from 'void*' to pointer to non-'void' requires an explicit cast
1>qqq.cpp(202): error C3861: '_kbhit': identifier not found
1>
1>Build FAILED.
1>
1>Time Elapsed 00:00:00.33
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
I am facing undeclared Identifier issue. Please guide me on resolving this issue.

Answer 1

stdafx.h needs to be included first before all other headers. This is a requirement of the VC++ compiler. If stdafx.h is included after other header files those header files will be skipped by the compiler. When this happens it is unable to resolve the symbols declared in those headers.