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From Bert Frees <>
Subject Re: odt2braille on the Mac
Date Tue, 25 Oct 2011 15:17:59 GMT
Hi Alexandro,

Thanks for your suggestion.

Something I didn't mention yet is that I need an interface that can send 
raw data (a byte stream) to a printer driver. The problem with braille 
printers is that they're very different from normal ink printers. A 
braille printer is more like an old dotmatrix or impact printer, and is 
controlled with special escape sequences and codes that define where a 
braille dot has to be placed on the paper.

Is it possible to send raw data to a printer using this API?


On 25/10/2011 16:41, Alexandro Colorado wrote:
> hi, i think it might be better to usee the uno api for the printing services.
> On 10/25/11, Bert Frees<>  wrote:
>> Hi all,
>> My name is Bert Frees. I'm the developer of odt2braille, the Braille
>> plugin for OOo: Some time
>> ago I raised an issue on the old developer list (see e-mail below), but
>> I got no reaction. I'm bringing it up again on this list in the hope
>> somebody here can help me out. I'm not a Mac expert at all, but I get a
>> lot of requests for Mac support. A lot of people would be very happy if
>> this got solved.
>> Thanks in advance,
>> Bert Frees
>> --
>> Bert Frees
>> Katholieke Universiteit Leuven
>> Dept. Elektrotechniek - ESAT - SCD
>> Onderzoeksgroep Documentarchitecturen
>> Kasteelpark Arenberg 10 bus 2442
>> B-3001 Heverlee-Leuven
>> Belgiƫ
>> -------- Original Message --------
>> Subject: 	odt2braille on the Mac
>> Date: 	Mon, 16 May 2011 11:55:37 +0200
>> From: 	Bert Frees<>
>> To:
>> Hello,
>> I'm new to this mailing list. My name is Bert Frees. I am the developer
>> of odt2braille, the plugin for printing and exporting
>> Braille. The website is
>> I'm trying to make this plugin available on the Mac, but I've been
>> puzzling on a bug for some time now and I'm really stuck. I hope there
>> is somebody on this list who is familiar with OOo on the Mac, and who
>> knows what might be the problem.
>> I'm using javax.print.PrintServiceLookup
>> <>
>> to look up the default printer device. It works fine on Windows, but on
>> Mac OS it causes OOo to crash. Also, I'm sure the problem is OOo-related
>> because the code runs fine when it is not embedded in an OOo extension.
>> This is the code:
>> javax.print.PrintService[] printers =
>> javax.print.PrintServiceLookup.lookupDefaultPrintService();
>> Thanks,
>> Bert

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