Question: class message - @default, and @prolog, and the Objects things, how to use?

General
1

Hello,
I have follow piece of Code:

send(D,append,new(TI,editor)),
send(D,append,
	button(transpile,
		message(@prolog,transpile_text,TI))).

the message will call “transpile_text” - outside of a Class (I assume it is outside of a Class, because I am thinking over procedures in Classes have the Form: proc :-> .
procedures in global Scope have the Form: proc :- .
However.

I tried calling with a Dialog Object the message: message(D,transpile_text,TI)
but this will not send or effect any actions.
It seems that this message will never called.
And if they called, I get error Message.

So, it is possible to handle the message inside the Class members (as Class procedure) ?

Thanks for Reading
Jens

2

There is a lot of code in the xpce Prolog library that does all these things that you can use for inspiration. XPCE is old. I think there are some copies of the old manuals floating around (probably in PostScript :slight_smile: ). I wouldn’t use it for anything serious. It is maintained for some old projects as well as the development tools. One can certainly make a case for modernizing it as it is a pretty productive environment once you understand its (outdated) terminology. I doubt this will happen though.

In most cases I use Prolog as web server these days to create GUIs. Other people embed Prolog in Gtk, Python+Something, C+++Something, etc.

Did anyone have a look at using Prolog with Electron?

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