private void mnuRefresh_Click(object sender, EventArgs e)
{
foreach (Control c in this.Controls)
{
c.Enabled = false;
}
int cb = 0;
int ret = GetAdaptersInfo(IntPtr.Zero, ref cb);
IntPtr pInfo = LocalAlloc(0x40, cb); //LPTR
ret = GetAdaptersInfo(pInfo, ref cb);
if (ret == 0)
{
IP_ADAPTER_INFO info = new IP_ADAPTER_INFO(pInfo, 0);
while (info != null)
{
IP_ADDR_STRING st = info.IpAddressList;
//{ info.AdapterName, info.CurrentIpAddress.IpAddress.String, info.CurrentIpAddress.IpMask.String, info.GatewayList.IpAddress.String }));
classLogin.ReaderIP = info.CurrentIpAddress.IpAddress.String;
info = info.Next;
}
}
LocalFree(pInfo);
foreach (Control c in this.Controls)
{
c.Enabled = true;
}
}
public static int GetAdapterInfo(string adapter, out IP_ADAPTER_INFO info)
{
long structSize = Marshal.SizeOf(typeof(IP_ADAPTER_INFO));
IntPtr pArray = Marshal.AllocHGlobal(new IntPtr(structSize));
try
{
int ret = GetAdaptersInfo(pArray, ref structSize);
if (ret == ERROR_BUFFER_OVERFLOW)
{
pArray = Marshal.ReAllocHGlobal(pArray, new IntPtr(structSize));
ret = GetAdaptersInfo(pArray, ref structSize);
}
if (ret != 0)
{
throw new System.ComponentModel.Win32Exception(ret);
}
IntPtr pEntry = pArray;
while (pEntry != IntPtr.Zero)
{
info = (IP_ADAPTER_INFO)Marshal.PtrToStructure(pEntry, typeof(IP_ADAPTER_INFO));
if (info.IpAddressList.IpAddress.Address == adapter)
{
return(info.IpAddressList.Context);
}
IntPtr pAddr = info.IpAddressList.Next;
while (pAddr != IntPtr.Zero)
{
IP_ADDR_STRING addr = (IP_ADDR_STRING)Marshal.PtrToStructure(pAddr, typeof(IP_ADDR_STRING));
if (addr.IpAddress.Address == adapter)
{
return(addr.Context);
}
pAddr = addr.Next;
}
pEntry = info.Next;
}
throw new InvalidOperationException("Adapter not found");
}
finally
{
Marshal.FreeHGlobal(pArray);
}
}
public bool IsAssociated(char[] pszSSID, uint dwLen)
{
bool fStatus = true;
if (0 == m_Intf.bInitialized)
{
return(false);
}
if (0 == (m_dwOutFlags & NativeConstants.INTF_BSSID))
{
return(false);
}
IntPtr pAdapterInfo = IntPtr.Zero;
try
{
pAdapterInfo = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(IP_ADAPTER_INFO)) * 10);
//IP_ADAPTER_INFO[] adapterInfo = new IP_ADAPTER_INFO[10];
uint uLen = (uint)Marshal.SizeOf(typeof(IP_ADAPTER_INFO)) * 10;
uint ret = NativeMethods.GetAdaptersInfo(pAdapterInfo, ref uLen);
for (int i = 0; i < uLen / Marshal.SizeOf(typeof(IP_ADAPTER_INFO)); i++)
{
IP_ADAPTER_INFO adapterInfo = (IP_ADAPTER_INFO)Marshal.PtrToStructure(new IntPtr(pAdapterInfo.ToInt32() + i * Marshal.SizeOf(typeof(IP_ADAPTER_INFO))), typeof(IP_ADAPTER_INFO));
bool isThisAdapter = true;
for (int j = 0; adapterInfo.AdapterName[j] != 0 && m_szWirelessCard1[j] != '\0'; j++)
{
if ((char)adapterInfo.AdapterName[j] != m_szWirelessCard1[j])
{
isThisAdapter = false;
break;
}
}
if (isThisAdapter)
{
IP_ADDR_STRING CurrentIPAddress = (IP_ADDR_STRING)Marshal.PtrToStructure(new IntPtr(adapterInfo.CurrentIpAddress.ToInt32()), typeof(IP_ADDR_STRING));
char[] zero = "0.0.0.0".ToCharArray();
bool iszero = true;
for (int j = 0; j < zero.Length; j++)
{
if ((char)CurrentIPAddress.IpAddress.Data4[j] != zero[j])
{
iszero = false;
break;
}
}
if (iszero)
{
return(false);
}
else
{
break;
}
}
}
if (0 == m_Intf.rdSSID.dwDataLen)
{
return(false);
}
if (dwLen < NativeConstants.NDIS_802_11_LENGTH_SSID + 1)
{
return(false);
}
ASCIIEncoding encoding = new ASCIIEncoding();
byte[] ssidData = new byte[m_Intf.rdSSID.dwDataLen + 1];
for (int i = 0; i < m_Intf.rdSSID.dwDataLen; i++)
{
pszSSID[i] = (char)(ssidData[i] = (byte)Marshal.PtrToStructure(new IntPtr(m_Intf.rdSSID.pData.ToInt32() + i), typeof(byte)));
}
pszSSID[m_Intf.rdSSID.dwDataLen] = '\0';
}
catch
{
MessageBox.Show("IsAssociated exception");
fStatus = false;
}
finally
{
if (pAdapterInfo != IntPtr.Zero)
{
Marshal.FreeHGlobal(pAdapterInfo);
}
}
return(fStatus);
}
