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On Sockopen - Events - mIRC
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The ON SOCKOPEN event triggers when a TCP socket connection initiated with /sockopen is either successfull or failed. This event also trigger after an SSL negociation (STARTTLS feature) is finished, you can check $sock().starttls which will be set to $true if the negociation was successful.


ON <level>:SOCKOPEN:<matchtext>:<commands>


<level>The corresponding access levels for the event to trigger.

<matchtext>The name of the socket you want the event to trigger on.

<commands>The commands to be performed when the event listener's criteria is met.

Connection State

Because the sockopen event triggers for failed connections as well as successful connections, it's important to check the value of $sockerr before continuing with any commands. Here is a list of the possible values returned by $sockerr in the on SOCKOPEN event:

  • 0 - Success.
  • 3 - Failure establishing socket connection: $sock($sockname).wsmsg will contain a more specific error message.
  • 4 - Error resolving given hostname.


on *:sockopen:example:{
  ;if an error occurred ($sockerr is not 0)
  if ($sockerr) {
    if ($sockerr == 3) {
      echo -s An error occurred while trying to connect: $sock($sockname).wsmsg
    elseif ($sockerr == 4) {
      echo -s Error resolving hostname
  ;no error occurred ($sockerr was 0)
  else {
    ;perform commands after establishing a connection.
    ;usually this involves making a request for a webpage as shown below:
    sockwrite -n $sockname GET / HTTP/1.1
    sockwrite -n $sockname Host:
    sockwrite -n $sockname Connection: close
    sockwrite    $sockname $crlf


Added: mIRC v3.5
Added on: 07 Aug 1995
Note: Unless otherwise stated, this was the date of original functionality.
Further enhancements may have been made in later versions.

See Also