这个函数只对本机扫描,我想对其它机子扫描,这个IP在哪里写啊。。哪个属性啊
function TFrmChk.IsPortUsed(const aPort: Integer): Boolean;
var
_vSock : TSocket;
_vWSAData : TWSAData;
_vAddrIn : TSockAddrIn;
begin
Result := False; if WSAStartup(MAKEWORD(2, 2), _vWSAData) = 0 then
begin
_vSock := Socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
try
if _vSock <> SOCKET_ERROR then
begin
_vAddrIn.sin_family := AF_INET;
_vAddrIn.sin_addr.S_addr := htonl(INADDR_ANY);
_vAddrIn.sin_port := htons(APort);
if Bind(_vSock, _vAddrIn, SizeOf(_vAddrIn)) <> 0 then
if WSAGetLastError = WSAEADDRINUSE then
Result := True;
end;
finally
CloseSocket(_vSock);
WSACleanup();
end;
end;
end;
function TFrmChk.IsPortUsed(const aPort: Integer): Boolean;
var
_vSock : TSocket;
_vWSAData : TWSAData;
_vAddrIn : TSockAddrIn;
begin
Result := False; if WSAStartup(MAKEWORD(2, 2), _vWSAData) = 0 then
begin
_vSock := Socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
try
if _vSock <> SOCKET_ERROR then
begin
_vAddrIn.sin_family := AF_INET;
_vAddrIn.sin_addr.S_addr := htonl(INADDR_ANY);
_vAddrIn.sin_port := htons(APort);
if Bind(_vSock, _vAddrIn, SizeOf(_vAddrIn)) <> 0 then
if WSAGetLastError = WSAEADDRINUSE then
Result := True;
end;
finally
CloseSocket(_vSock);
WSACleanup();
end;
end;
end;
_vAddrIn.sin_addr.S_addr := inet_addr('192.168.0.1');
showmessage('这是个返回的结果:');