Mega Code Archive
How to Identify your computers IP
<![CDATA[
Title: How to Identify your computers IP
Question: Describe a function that shows how to identify your computers IP
Answer:
function TForm1.LocalIP : string;
//
// Return computers IP if you are connected in a network
// Declare Winsock in the uses clause
//
type
TaPInAddr = array [0..10] of PInAddr;
PaPInAddr = ^TaPInAddr;
var
phe : PHostEnt;
pptr : PaPInAddr;
Buffer : array [0..63] of char;
I : Integer;
GInitData : TWSADATA;
begin
WSAStartup($101, GInitData);
Result := '';
GetHostName(Buffer, SizeOf(Buffer));
phe :=GetHostByName(buffer);
if phe = nil then
begin
Exit;
end;
pptr := PaPInAddr(Phe^.h_addr_list);
I := 0;
while pptr^[I] nil do
begin
result:=StrPas(inet_ntoa(pptr^[I]^));
Inc(I);
end;
WSACleanup;
end;
]]>