Vote UpVote

Checking if a TCP port is Open using Delphi and Winsocks

The Road to Delphi – Many times we need to know if a TCP port is open or not, here I leave a function to perform this task using winsoks. Code tested in Delphi 7, 2007 and 2010. uses Winsock; function PortTCP_IsOpen(dwPort : Word; ipAddressStr:AnsiString) : boolean; var client : sockaddr_in; sock : Integer; ret : Integer; wsdata : WSAData; begin Result:=False; ret := WSAStartup($0002, wsdata); //initiates use of the Winsock DLL if ret<>0 then exit; try client.sin_family := AF_INET; //Set the protocol to use , in this case (IPv4) client.sin_port := htons(dwPort); ...
Favorite? Off-Topic? Rodrigo @ 2010-02-21 08:33


Visits: 824
Votes: 2
Favorites: 1
Off-Topic: 0

Visits by Source

User Actions

Users who voted for this posting

Jan Derk
Contact us to advertise on DelphiFeeds.com

Community Links

Torry Firebird News


Please login or register to use this functionality.
(click on this box to dismiss)