A live frame is one that has not been deleted. When a frame is deleted, it is removed from its terminal display, although it may continue to exist as a Lisp object until there are no more references to it.
This function deletes the frame frame. The argument frame must specify a live frame (see below) and defaults to the selected frame.
It first deletes any child frame of frame (see Child Frames)
and any frame whose
delete-before frame parameter (see Frame Interaction Parameters) specifies frame. All such deletions are
performed recursively; so this step makes sure that no other frames with
frame as their ancestor will exist. Then, unless frame
specifies a tooltip, this function runs the hook
delete-frame-functions (each function getting one argument,
frame) before actually killing the frame. After actually killing
the frame and removing the frame from the frame list,
Note that a frame cannot be deleted as long as its minibuffer serves as
surrogate minibuffer for another frame (see Minibuffers and Frames).
Normally, you cannot delete a frame if all other frames are invisible,
but if force is non-
nil, then you are allowed to do so.
This function returns non-
nil if the frame frame has not
been deleted. The possible non-
nil return values are like those
framep. See Frames.
Some window managers provide a command to delete a window. These work
by sending a special message to the program that operates the window.
When Emacs gets one of these commands, it generates a
delete-frame event, whose normal definition is a command that
calls the function
delete-frame. See Misc Events.
This command deletes all frames on frame’s terminal, except
frame. If frame uses another frame’s minibuffer, that
minibuffer frame is left untouched. The argument frame must
specify a live frame and defaults to the selected frame. Internally,
this command works by calling
delete-frame with force
nil for all frames that shall be deleted.
This function does not delete any of frame’s child frames (see Child Frames). If frame is a child frame, it deletes frame’s siblings only.