The following frame parameters control various aspects of the frame's interaction with the window manager. They have no effect on text terminals.
tfor visible, and
iconfor 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.
nilspecifies no icon (in which case the window manager decides what to show); any other non-
nilvalue specifies the default Emacs icon.
nil, the frame's title is used.
window-id, changing this parameter has no actual effect.
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
nilto prevent hanging with those window managers.
nil, the frame is visible on all virtual desktops on systems with virtual desktops.