RE: Programmatically setting the frame size and position

[Drew Adams]

> I would like to know how you go about setting the
> size and position of a given frame using Elisp instead
> of the mouse.

Just use functions `set-frame-position', `set-frame-height',
and `set-frame-width'.  Or use function `set-frame-parameter'
or function `modify-frame-parameters'.

See the Elisp manual, node `Size and Position'.
https://www.gnu.org/software/emacs/manual/html_node/elisp/Size-and-Position.html#Size-and-Position

You can get to that node in Emacs, using `C-h i', choosing
the Elisp manual, and then using g `Size and Position'.

Or once in the manual, type `i set-frame TAB' to see these
and related functions, and choose one of those mentioned
to get to the information about them.