Return the symbol `icon' if FRAME is iconified or \"minimized\".
Return nil if FRAME was made invisible, via `make-frame-invisible'.
On graphical displays, invisible frames are not updated and are
-usually not displayed at all, even in a window system's \"taskbar\".
-
-If FRAME is a text terminal frame, this always returns t.
-Such frames are always considered visible, whether or not they are
-currently being displayed on the terminal. */)
+usually not displayed at all, even in a window system's \"taskbar\". */)
(Lisp_Object frame)
{
CHECK_LIVE_FRAME (frame);