Help in Libreoffice extension development

Pattabhi RK t.pattabhi at
Tue Mar 6 15:47:55 UTC 2018

Dear Samuel,

We read through Libreoffice documentation. My understanding of the
extension creation is as follows,

We have create UNO component and call our required function in that

To create the UNO component,
First we have create IDL file, from IDL file we have to create URD file.
>From URD file we need to create RDB file.

The newly created RDB file along with types.RDB in libreoffice should be
given to javamaker to create java class file.

Actually we tried using the command line option but we were struck with
javamaker command. We were getting types.rdb file mismatch error.

So then we started with Eclipse.  And tried to install the
starrter-project-extension  given by you. We were able to install your
extension. As we said in the earlier mail, we were struck in UNO type
selection wizard not coming up. And we could not figure out, where to put
the respective files in your code.

We have a better FST based spellchecker for Tamil and we wanted to  come up
with an oxt as a part of our research project.

And I just checked the link given by you. There is no spellchecker or
grammar checker for Tamil given in those links.

Thank you very much for your prompt responses.


Research Scholar,
AU-KBC Research Centre,
Anna University, Chennai, India.

On Tue, Mar 6, 2018 at 8:56 PM, Samuel Mehrbrodt <Samuel.Mehrbrodt at>

> Hi Pattabhi,
> well I can't create the extension for you. You need to get a basic
> understanding how LibreOffice extensions work if you want to do that work.
> But why do you want to create an extension for that? If you want spell
> checking in Tamil, you can just provide a dictionary file. You can also
> provide the dictionary as an extension without code.
> This page indicates there already exists a spell checker and even grammar
> checker for Tamil, did you check that? https://wiki.
> Regards
> Samuel
> Am 06.03.2018 um 15:58 schrieb Pattabhi RK:
> Dear Samuel,
>   Sorry to disturb you with my silly problems. I am new to this
> libreoffice development. I went through the sample codes provided by you. I
> could not understand where these codes have to be used or put into the
> starter-extension project so that it can be customised for spellchecking
> task.
>   In the starter project extension we have the And I
> think instead of this we need to put in Now
> accordingly how should the be modified I could not
> understand. And similarly how should the StarterProject.idl be modified I
> could not understand. So towards this I thought I will build a new
> Extension project, as given in the page
> wiki/JavaEclipseTuto and specify the UNO type as "XSpellChecker", so that
> these basic codes and .urd, .idl and types.rdb will be built by the Eclipse
> and I will put the code given in in the
>   So this is where I got error of UNO type selection wizard not working.
> The StarterProject Extension is working well in my system and not getting
> any errors. So please kindly help me in knowing how and where I should
> modify your StarterProject extension code to put code.
>  Thank you very much.
> regards,
> Pattabhi
> Research Scholar,
> AU-KBC Research Centre,
> Anna University, Chennai, India.
> --
> Samuel Mehrbrodt
> Softwareentwickler LibreOffice
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