🚀 go-pugleaf

#include "iphelper.h"
#include "Iptypes.h"
#include "Ipexport.h"
#include "Iphlpapi.h"

void fm(DWORD error, HWND wnd)
{
  char   *lpMsgBuf;
  ::FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM,
                  NULL,
                  error,
                  MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),  // Default
language
                  (LPTSTR) &lpMsgBuf,
                  0,
                  NULL);
  // Display the string.
  ::MessageBox(wnd, lpMsgBuf, "Internet Protocol Helper", MB_OK);

  // Free the buffer.
  ::LocalFree(lpMsgBuf);
  ::SetLastError(0);
}

char* getAdapterType(UINT type)
{
  switch (type)
  {
    case MIB_IF_TYPE_OTHER:
      return "Unknown";
    case MIB_IF_TYPE_ETHERNET:
      return "Ethernet";
    case MIB_IF_TYPE_TOKENRING:
      return "Token ring";
    case MIB_IF_TYPE_FDDI:
      return "FDDI";
    case MIB_IF_TYPE_PPP:
      return "PPP";
    case MIB_IF_TYPE_LOOPBACK:
      return "Loop Back";
    case MIB_IF_TYPE_SLIP:
      return "SLIP";
  }

  return "Unknown";
}

char* getAdapterStatus(DWORD status)
{
  switch (status)
  {
    case MIB_IF_OPER_STATUS_NON_OPERATIONAL:
         return "NON_OPERATIONAL";
    case MIB_IF_OPER_STATUS_UNREACHABLE:
         return "UNREACHABLE";
    case MIB_IF_OPER_STATUS_DISCONNECTED:
         return "DISCONNECTED";
    case MIB_IF_OPER_STATUS_CONNECTING:
         return "CONNECTING";
    case MIB_IF_OPER_STATUS_CONNECTED:
         return "CONNECTED";
    case MIB_IF_OPER_STATUS_OPERATIONAL:
         return "OPERATIONAL";
  }

  return "Unknown";
}


DWORD ret, cnt;

PMIB_IFTABLE pIfTable = NULL;
PMIB_IFROW   next;
ULONG        pdwSize = 0;

ret = ::GetIfTable(pIfTable, &pdwSize, false);
if (ret == ERROR_INSUFFICIENT_BUFFER)
{
  if ((pIfTable = (PMIB_IFTABLE)malloc(pdwSize)) != NULL)
  {
    ret = ::GetIfTable(pIfTable, &pdwSize, false);
    if (ret == NO_ERROR)
    {
      for (cnt=0; cnt < pIfTable->dwNumEntries ;cnt ++)
      {
        next = &pIfTable->table[cnt];
        getAdapterType(next->dwType);
        getAdapterStatus(next->dwOperStatus);
      }
    }
    else
      fm(ret, this->Handle);
    free(pIfTable);
  }
}
else
  fm(ret, this->Handle);

compile this code and have a look at the returned string
of this function getAdapterStatus(next->dwOperStatus);

Good luck

"Helcio Mayor" <HelcioLiza@mayorgroves.fsnet.co.uk> ha scritto nel messaggio
news:3fb3ffd9$1@newsgroups.borland.com...
> Hi guys,
> Anyone knows call back or API call that would detect when say the network
> cable is
> pulled out ?
> Many thanks for you time
>
>