frameset--initial-params

frameset--initial-params is a compiled Lisp function in `frameset.el'.

(frameset--initial-params PARAMETERS)

Return a list of PARAMETERS that must be set when creating the frame.
Setting position and size parameters as soon as possible helps reducing
flickering; other parameters, like `minibuffer' and `border-width', can
not be changed once the frame has been created. Internal use only.