Re: how could the mighty emacs lack --fullscreen ?

[Richard Stallman]

    At any rate, making `tool-bar-pixel-height', `menu-bar-pixel-height'

>From what Jan says, there is fundamentally no way to do this
until the frame is mapped, which is too late for --fullscreen.
We could try to make this information available for other purposes.
Is there a practical use for that?

    and `font-pixel-height' available would be nice.

It should be possible to determine the pixel height of the default
font (which is the number that is relevant here) by calling
frame-pixel-height and frame-height, and dividing.

But there ought to be a way to get the height of any face.