hello mark,

we used qc for a digital signage solution and had the problem, that the client 
wanted to have a preview of some clips on his windows machine. so we set up a 
callback service. 

1. the client requests a clip on the server
2. the server changes a flag
3. qc is checking from time to time if the flag is set (xml)
4. if its set it calculates the preview
5. when its done it changes back the flag.
6. meanwhile the preview window (html) is checking if the content is available

the patch was compiled into an application and starts automatically

best, stefan


On Dec 12, 2010, at 5:19 AM, Mark Engelhardt wrote:

> On Dec 11, 2010, at 6:57 PM, Alastair Leith wrote:
> 
>> Hi Mark
>> 
>> I'm not sure if you are thinking to run the .qtz file server side or client 
>> side. 
> 
> Alastair,
> 
> For my application it needs to be server side.
> 
>> 
>> Sounds like you are thinking server side in which case you made need to 
>> create an App for the .qtz file and run that from cmd line and then get the 
>> results in whatever way as a web native file jpeg, h264, etc. Cocoa is Not 
>> my dept so take that with advised tonne of sea-salt.  
> 
> I found this tutorial via google:  
> 
> https://www.georgestarcher.com/?p=254
> 
> I wonder if this is essentially what I need to do?  
> 
>> 
>> Another route is an Applescript command to have Quartz Composer open the 
>> file, Viewer Window and run it, but the .qtz file would need to export the 
>> result(s) itself. Apple has a image exporter plugin for QC in the developer 
>> example files, well it did for 10.5 at least. There are other 3rd party ways 
>> to get live visuals out of QC — not least (soon to become beta) Syphon 
> 
> Applescript will probably be too slow for my application.  Syphon looks very 
> promising!  
> 
>> 
>> Easier way to implement is client side but this restricts the .qtz to Mac OS 
>> X clients only on Safari browser and then only Macs that have the correct OS 
>> to run your .qtz. There is documentation on Apple site for how to do this. 
>> Start with these:
>> Adding Compositions to Webpages and Widgets
>> Introduction to Quartz Composer WebKit Plug-in JavaScript Reference
>> 
>> Hope this helps a little or at least encourages. Interested to see the 
>> results.
> 
> Thanks so much for your advice. 
>> 
>> Alastair
>> 
>> 
>> The notion of looking on at life has always been hateful to me. What am I if 
>> I am not a participant? In order to be, I must participate. 
>> Antoine de Saint-Exupery 
>> 
>> On 12/12/2010, at 1:07 AM, Mark Engelhardt wrote:
>> 
>>> Hello,
>>> 
>>> I am new to Quartz Composer,  
>>> 
>>> I want to create my own .qtz file and then display the resulting image on 
>>> the web.  So I am trying to understand how to apply a .qtz to a local file 
>>> via the command line, or directly in php.  
>>> 
>>> I have tried both CoreImageTool  and cifilter, but they only seem to work 
>>> on the builtin Core Image functions.
>>> 
>>> What am I missing? 
>>> 
>>> Thanks in advance.
>>> 
>>> Mark
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