window-new-normal

window-new-normal is a built-in function in `C source code'.

(window-new-normal &optional WINDOW)

Return new normal size of window WINDOW.
WINDOW must be a valid window and defaults to the selected one.

The new normal size of WINDOW is the value set by the last call of
`set-window-new-normal' for WINDOW. If valid, it will be shortly
installed as WINDOW's normal size (see `window-normal-size').