[Lazarus] Documentation for the packages shipped with Lazarus

Mattias Gaertner nc-gaertnma at netcologne.de
Fri Oct 12 21:56:21 CEST 2012

On Fri, 12 Oct 2012 21:30:47 +0300
stdreamer <stdreamer at freemail.gr> wrote:

> On 12/10/2012 7:08 μμ, Mattias Gaertner wrote:
> > On Thu, 11 Oct 2012 22:10:41 +0300
> > stdreamer <stdreamer at freemail.gr> wrote:
> >
> >> On 11/10/2012 5:27 μμ, Mattias Gaertner wrote:
> >> [...]
> >>> The package type is not *two* booleans. For instance there is no type "not
> >>> designtime and not runtime".
> >>>
> >>>
> >>>> If an overlay is shown then that state is part of the package if not
> >>>> then it is not. This leaves one icon state with no meaning ee. no
> >>>> overlay is shown.
> >>> The purpose of an overlay is to spot the specials easier.
> >>> By far the most packages are "design time and run time". Therefore they should
> >>> not have any overlay or at most a very plain/unimposing one.
> >>> There are three special package types:
> >>> design time  - usable by projects, but not compiled into projects
> >>> run time - usable by design time packages, but not directly installable
> >>> run time only - not installable, not even indirectly
> >> [...]
> >> OK lets take a step back, and see this a bit simplistic.
> > If you don't understand one of my points, just ask.
> > Do not post my whole answer and then ignore it.
> That's a double edged sword for the time being I'll ignore it and move 
> on to more productive thoughts.
> >> 1) The type of a package.
> >>
> >> A package can be
> >>
> >> 1) run time package
> >> 2) Design time package.
> >> 3) Both
> > Incomplete. see above.
> >
> What is incomplete? 

There are four types, you gave three.

> Which other states you have in mind Installable for instance? In that case let me ask you once more. What is the difference 
> between a run time package and a run time only package? 

See above.

> How can a design 
> time package, use a run time only package and  be installed in the IDE? 

It can not.

> What is the reason of existence of this option?

There are some packages that should never be installed, not even

> As for the Boolean part,
> What would you answer if I asked you "is that a design time package ?"

Do you mean
a) can this package be used at design time?
b) can this package only be used at design time?
c) should this package use type "design time"?
d) has the developer decided to use the type "design time"?

> and last but I think is the most important part the convention I have 
> never questioned the branding of the packages this is just to satisfy my 
> curiosity and it doesn't matter to me either way.


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