Am 15.11.2022 um 20:31 schrieb Aruna Hewapathirane:
On Tue, Nov 15, 2022 at 2:28 PM Sven Barth via lazarus
<lazarus@lists.lazarus-ide.org> wrote:
Am 15.11.2022 um 20:11 schrieb Aruna Hewapathirane via lazarus:
> Hello Everyone,
>
> I was wondering if it is possible for me to create a library
with my
> own set of code snippets I use on a regular basis . Is there any
> example code I can possibly look at how this is done?
>
> Or a small single function example if someone is willing would help
> immensely.
Do you really mean a library in the sense of a DLL or SO which
requires
you to pay a bit more attention to how you code it due to the
crossing
of the module boundaries or do you mean a Lazarus package which is a
collection of units that Lazarus will compile for you if necessary
and
that you can use freely?
Regards,
Sven
Hi Sven, my apologies I should have been more specific and yes it is
the linux SO
I am specifically interested in but certainly also interested in how
to create the DLL
for Windows.Thanks!
Then please take a look here:
https://www.freepascal.org/docs-html/prog/progch12.html#x262-27800012
But also pay attention to these articles on the Wiki which raise a few
issues you need to be aware of:
- https://wiki.freepascal.org/Lazarus/FPC_Libraries
- https://wiki.freepascal.org/shared_library
Important points of these to keep in mind:
- don't allocate memory in the module and release in the program (or
vice versa) - unless you use a common memory manager between them like
ShareMem or cmem - this also includes strings and arrays
- don't pass classes between module and program
- don't propagate exceptions from the module to the program (or vice versa)
Regards,
Sven
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