[LAD] Qt GUI for LV2 Plugin

[Jeremy]

Hi all,

I am thinking about making a custom GUI for the Autotalent LV2 Port, which
would allow the user to select scales easier and perhaps provide some eye
candy ;).

It seems that there is some issue with LV2 GUIs being not cross-platform
because they require GTK.  Therefore it seems to make sense to create a GUI
using Qt, so it will work on most imaginable platforms.  However, when I
started googling, I found a discussion on the topic by the author of the
Composite sampler, who wanted to do the same thing.  It seemed like he was
actually writing a new extension in order for this to work.  However, I
couldn't find any further work on that project, and currently the Composite
plugin doesn't have a custom GUI at all.

So my questions are:

Is it possible to create a Qt GUI with the currently designed extensions?
 Which extension should I use if so?
Which hosts support which type of external GUI creation?  Would it take
additional code to get any Qt GUI running under them?
Is there any reason I should not use an external Qt GUI?
Where should I start with getting an external Qt GUI to run?

Thanks,
Jeremy
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