Hello,

I'm trying to explain desgin-time vs run-time packages, and it seems that I don't really fully understand them myself.
Desgin time are packages that changes the IDE or adds components etc... Run-time are used only when compiling the program itself.

That much I understand (I hope). However, I can't install run-time packages, so how does Lazarus knows about them ?

Thanks,

Ido
http://ik.homelinux.org/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.lazarus.freepascal.org/pipermail/lazarus/attachments/20091114/2152355e/attachment.html>

See
http://wiki.lazarus.freepascal.org/Lazarus_Packages#Design_Time_vs_Run_Time_package

Mattias

That much I understand (I hope). However, I can't install run-time packages, so how does Lazarus knows about them ?

Run-time packages do not need to be installed. Just compile the package (Package->Open package file and in the following dialog just click compile). After that you can add your run-time package as a dependency to your project (for example via Project Inspector->add to Project->new requirement).

hih
R.

This link seems to assume that a package is always either design, or runtime or both?

AFAIK: in delphi you can have the same package as onr runtime, and one design time package.

That is you have TMyComponent. Instead of having any "if csDesigning in ComponetFlags" you have a designtime package (containing your component,with all tghe cdesign code, and maybe prop-editors or the like) and you have your runtime package, that has the same component, but without csdesign code.

Now yes: the ide only needs to know about the design package, in order for you to put the component on your page. => but in this case the IDE would add the design time package as package/unit requirements to your project. And it should not. It should add the runtime package instead.

Maybe that is something that can be archive with build-modes? While compilng the IDE, you use the design-time build mode. While compiling an application you use the run-time build-mode. (The packages must have the ppu for both build-modes in it's unit directory).

Martin

2009/11/14 ik :

That much I understand (I hope). However, I can't install run-time packages, so how does Lazarus knows about them ?

run-time packages do not modify the IDE - no components get install into the IDE's component palette. So you will create a project and simply and that run-time package as a dependency to that project, so that it gets compiled into you project and soon as you open the run-time package and compile it (NOT compile & install, just compile), then Lazarus knows about the package and it will appear as a option in the "dependency list" of other projects.

design-time packages will add a new Property Editor or Component on the component palette of the IDE. It will register components that you can drop on a Form in the Form Designer.

?Thanks Graeme, Mattias, Reimar and Martin.

I have wrote about it on my blog:
http://translate.google.com/translate?js=y&prev=_t&hl=en&ie=UTF-8&u=http%3A%2F%2Fidkn.wordpress.com%2F2009%2F11%2F14%2Finstalling-packages%2F&sl=iw&tl=en&history_state0=

Google translate does not translate it properly, but I think you can understand that post more or less :)

Ido
http://ik.homelinux.org/

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.lazarus.freepascal.org/pipermail/lazarus/attachments/20091115/daec401c/attachment.html>

Correct.

AFAIK: in delphi you can have the same package as onr runtime, and one design time package.

Same under lazarus. You can duplicate code and write any redundancy you like. But I don't recommend it.

That's possible. But I have hardly seen such duplication.

Now yes: the ide only needs to know about the design package, in order for you to put the component on your page. => but in this case the IDE would add the design time package as package/unit requirements to your project. And it should not. It should add the runtime package instead.

Then the run time package "provides" the design time package (Package Editor / Options / Provides).

Maybe that is something that can be archive with build-modes? While compilng the IDE, you use the design-time build mode. While compiling an application you use the run-time build-mode. (The packages must have the ppu for both build-modes in it's unit directory).

Mattias

In fact, you don't even need to compile it. Just open the lpk file once.

design-time packages will add a new Property Editor or Component on the component palette of the IDE. It will register components that you can drop on a Form in the Form Designer.

Mattias