"R.Wieser"  writes:
> Richard,
>
>> But generally, nobody knows what you don't know, so you're
>> going to have be prepared to treating learning as a dialog.
>
> :-)  I did.   My initial question was pretty-much a "please tell me
> everything, I know nothing", which got narrowed down when I got more
> information (like when I found out that multiple graphical environments
> existed - GTK, Qt, etc).
>
> The problem was when I asked for *specific* info most responses stayed
> completely non-comittal: "just pick one" and "go read the documentation".
> Not funny, not funny *at all*.

Most people do not learn multiple GUI frameworks. The only well-informed
answer you’ll get from any individual is the one they actually know. If
(hypothetically) I’ve only used GTK+, how on earth do you expect me to
help you pick between GTK+ and Qt?

When you ask a question of multiple people, and get multiple answers
back, the only person who can meaningfuly evaluate how those answer
apply to your requirements is you.

> Remember me asking for what "package manager" the responder was
> referring to and how I would be able to ask it what already was
> installed ?  Never got an answer, and as a result still do not know
> ...

I guess you mean  in which you ask what a
package manager is. But you also reveal in the *very same post* that
you’ve already found it, which probably explains why nobody answered a
question you’d apparently managed to answer yourself.

> Yes, I found apt-get and apt-cache (thru some googeling), but when I tried
> the latter I noticed it mentioned the availability of some package, but
> could not find it back in the cache folder.  In other words, availablity
> does not even mean "its there", and (by that feat) much less (it think) that
> its installed.   And while the destinction might be "obvious" to the people
> here, to me its (still) as thick as mud.

The rest of that thread includes people pointing you at the
documentation and attempting to help debug what went wrong with your
attempt to install the GTK+ dev packages.

--
https://www.greenend.org.uk/rjk/

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