How to show popup on Emacs?

Question

I intend to change certain features/functions in Emacs. I was wondering whether there is any feature in Emacs to popup a windows to show a warning message? Also, I would appreciate any alternative ideas if this feature is not available.

Cheers all.

Answer 1

(message-box "World's on fire")

You might also want to M-x apropos RET ^x- to find out about other GUI features emacs supports.

If you want something more sophisticated, you have to use/write separte programs.
Emacs GUI support is limited, but it interacts quite well with other processes.

Answer 2

You might want to look at the following. These are the popups that autocomplete uses.

https://github.com/m2ym/popup-el/tree/v0.4