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Im doing a Firewall in C#,on the Process
"byte buffer = new byte; // Start with 20.000 bytes left for information about tcp table
int pdwSize = 20000;
int BufferSize = 100000;
IntPtr lpTable = Marshal.AllocHGlobal(BufferSize);
IntPtr current = lpTable;
int res = IPHlpAPI32Wrapper.GetTcpTable(buffer, out pdwSize, true);
if (res != NO_ERROR)
buffer = new byte[pdwSize];
res = IPHlpAPI32Wrapper.GetTcpTable(buffer, out pdwSize, true);
if (res != 0)
return; // Error. You should handle it
TcpConnexion = new IpHlpApidotnet.MIB_TCPTABLE();
int nOffset = 0;
// number of entry in the
TcpConnexion.dwNumEntries = Convert.ToInt32(buffer[nOffset]);
TcpConnexion.table = new MIB_TCPROW[TcpConnexion.dwNumEntries];"
Iam passing the MIB_TCPROW object to SetTcpEntry...
But iam getting the Following Error
"Can not marshal field Local of type IpHlpApidotnet.MIB_TCPROW: The type definition of this field has no layout information."
Can u anybody help me out???
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