OSC L Set Icon Name (dtterm)
Set the icon name, as Sun's terminals and dtterm did.
OSC L Pt ST
OSC L Pt ST sets the icon name to Pt, as OSC 1 does, and leaves the window title alone.
Sun’s terminals and CDE’s dtterm set the title and the icon with a letter instead of a number, and xterm accepts their forms too: its Control Sequences document lists them in its table of the Sun and dtterm window operations. There is no ;: everything after the letter is the text, a ; included (do_osc).
It is also the form xterm answers in when it reports the icon name, CSI 20 t (see XTWINOPS), though a default xterm refuses that report.
libghostty-vt has no icon name, as the OSC 1 page says, and ignores OSC L. What a case can see, that the title is unchanged, is the same in both.
Support
| Terminal | Version | Support | Notes |
|---|---|---|---|
| VT220 | manual, 2nd ed., 1984 | No | OSC is not among the controls it recognizes (§4.2) |
| VT510 | manual, 1st ed., 1993 | No | ignores an OSC string (chapter 4) |
| xterm | patch 412, xterm-411a | Yes | |
| libghostty-vt | 0f171f6 | No | ignored; it has no icon name |
| Konsole | 26.11.70, a24c3d71 | No | |
| ConEmu | build 230724, its documentation | No | not in ConEmu’s list, ANSI escape codes |
Validation
OSC-L-1: The title is left alone
\e]2;Window\a
\e]LIcon\a
A
|A__|
title "Window"
cursor 1,2