The following frame parameters control various aspects of the frame’s interaction with the window manager. They have no effect on text terminals.
The state of visibility of the frame. There are three possibilities:
nil for invisible,
t for visible, and
iconified. See Visibility of Frames.
nil, Emacs automatically raises the frame when it is
selected. Some window managers do not allow this.
nil, Emacs automatically lowers the frame when it is
deselected. Some window managers do not allow this.
The type of icon to use for this frame. If the value is a string,
that specifies a file containing a bitmap to use;
no icon (in which case the window manager decides what to show); any
nil value specifies the default Emacs icon.
The name to use in the icon for this frame, when and if the icon
appears. If this is
nil, the frame’s title is used.
The ID number which the graphical display uses for this frame. Emacs assigns this parameter when the frame is created; changing the parameter has no effect on the actual ID number.
The ID number of the outermost window-system window in which the frame
exists. As with
window-id, changing this parameter has no
nil, tell Xt to wait for the window manager to confirm
geometry changes. Some window managers, including versions of Fvwm2
and KDE, fail to confirm, so Xt hangs. Set this to
prevent hanging with those window managers.
nil, the frame is visible on all virtual desktops on systems
with virtual desktops.