Question and Answer Database
FAQ: FAQ4707C — Getting local hostname from winsock.
Category: Internet/WEB
Platform: All-32Bit
Product: C++Builder3.x, C++Builder4.x,
Question:
How do I get the local internet machine name and IP address?
Answer:
Here is an example that uses the Winsock API to get the local hostname.
void __fastcall TForm1::Button1Click(TObject *Sender)
{
hostent *p;
char s[128];
char *p2;
//Get the computer name
gethostname(s, 128);
p = gethostbyname(s);
Memo1->Lines->Add(p->h_name);
//Get the IpAddress
p2 = inet_ntoa(*((in_addr *)p->h_addr));
Memo1->Lines->Add(p2);
}
void __fastcall TForm1::FormCreate(TObject *Sender)
{
WORD wVersionRequested;
WSADATA wsaData;
//Start up WinSock
wVersionRequested = MAKEWORD(1, 1);
WSAStartup(wVersionRequested, &wsaData);
}
void __fastcall TForm1::FormDestroy(TObject *Sender)
{
WSACleanup();
}
8/4/99 11:56:35 AM
Last Modified: 01-SEP-99