>
> How does it work? Does it scan the form and build a region or so? Sounds
> like a horrible hack to me TBH. How do you use it ?
>
Well there are a few ways one could achieve this, the worst hack being to have
the code scan the form and copy whatever is behind it on screen onto the
section you selected, that is a horrible way.
Now on MacOSX and Linux (at least with newer versions of X) it should be
possible to do TRUE translucency. On linux by tapping into the Xcomposite and
Xrender extensions, not sure how you get to these features on Mac. On windows
I don't know but different implementations for supported platforms is quite
okay if the interface to the component is the same.
I do think it would be a nice-to-have but right now I doubt there is a clean
multiplatform approach so a per-platform implementation would be needed and
it's not lazarus style to add components that work only in one place.
I do reckon that a lazarus component which can tap into the features of
xcomposite manager would be really neat though, not sure what it would take
to create one, especially if you don't want to use a tprocess, I suspect our
X-header conversions don't include the functions it uses so it may require
converting some code from the c project by X.org.
Of course it won't work on all versions of X only those that have the right
support compiled in (which is alpha code right now) but it would mean that
where available lazarus apps can be xgl enabled, users could have a slider
right in the app for adjusting transparency... neat nay (of course I think
this will be whole-form only though it could surely be mapped into a
component as well to affect only that which is in the bounds of the component
- personally I would like both - the component could have a slider letting
the user adjust the transparency of the region it encapsulates (and otherwize
look and work like say a tgroupbox) and another component which would be
simpler and probably non-visual but would adjust full form transparency to
whatever value you pass it in properties)
Wow that was a lot of bracing :p
Anyway, just some thoughts from me on the topic. Others ?
Ciao
A.J.
--
A.J. Venter
Chief Software Architect
OpenLab International
www.getopenlab.com
www.silentcoder.co.za
+27 82 726 5103
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