$tcl(tcl statement)

If the client was linked with an embedded tcl interpreter, the tcl statement shall be executed by tcl. If the client was not linked against tcl, then no action shall take place.

As all tcl statements resolve to a (tcl) value, that (tcl) value shall be converted into a string and returned. This means the return value shall not be “binary data” (have embedded nuls)

If the tcl statement has an error, the result is undefined, but usually an error message is output to the window and the empty string is returned.

Please remember that all function call arguments are subject to ircII expansion BEFORE the function call occurs. You must ensure that any chars that are special to both ircII and ruby are quoted so ircII doesn't try to honor them.

You can call back to the client from ruby. See /tcl for details.

$tcl() is useful for loading tcl scripts and modules, defining simple tcl functions, retrieving variables from within tclspace and other general maintenance of the tcl environment.

The Tcl_GetStringResult() result after calling Tcl_Eval() on tcl statement.

Someone want to provide me examples?

The TCL function first appeared in EPIC4-1.1.8.