取本机IP的代码如下:
var
var
WSData:TWSAData;
Buffer:array[0..63]of Char;
HostEntHostEnt;
PPInAddr:^PInAddr;
//取得的IP地址
//DWORD格式
LocalIPWord;
//字符串格式
IPString:String;
begin
LocalIP:=0;
IPString:='';
WSAStartUp($101,WSData);
try
GetHostName(Buffer,SizeOf(Buffer));
HostEnt:=GetHostByName(Buffer);
if Assigned(HostEnt) then
begin
PPInAddr:=@(PInAddr(HostEnt.H_Addr_List^));
while Assigned(PPInAddr^) do
begin
IPString:=StrPas(INet_NToA(PPInAddr^^));
LocalIP:=PPInAddr^^.S_Addr;
Inc(PPInAddr);
end;
end;
finally
WSACleanUp;
end;
end;
procedure TForm1.FormCreate(Sender: TObject);
var
wVersionRequested : WORD;
wsaData : TWSAData;
begin
{Start up WinSock}
wVersionRequested := MAKEWORD(1, 1);
WSAStartup(wVersionRequested, wsaData);
end;
procedure TForm1.Button1Click(Sender: TObject);
var p : PHostEnt;
s : array[0..128] of char;
p2 : pchar;
begin
{Get the computer name}
GetHostName(@s, 128);
p := GetHostByName(@s);
Memo1.Lines.Add(p^.h_Name);
{Get the IpAddress}
p2 := iNet_ntoa(PInAddr(p^.h_addr_list^)^);
Memo1.Lines.Add(p2);
end;
procedure TForm1.FormDestroy(Sender: TObject);
begin
{Shut down WinSock}
WSACleanup;
end;