Variable: icon-title-format

icon-title-format is a variable defined in xdisp.c.

Value

(multiple-frames "%b" ("" "%b - GNU Emacs at " system-name))

Documentation

Template for displaying the title bar of an iconified frame.

(Assuming the window manager supports this feature.)
If the value is a string, it should have the same structure as mode-line-format (which see), and is used only on frames for which no explicit name has been set (see modify-frame-parameters). If the value is t, that means use frame-title-format for iconified frames.

View in manual

Probably introduced at or before Emacs version 19.29.

Source Code

// Defined in /usr/src/emacs/src/xdisp.c
  DEFVAR_LISP ("icon-title-format", Vicon_title_format,
    doc: /* Template for displaying the title bar of an iconified frame.
\(Assuming the window manager supports this feature.)