[LAD] Native LV2 port of mdaEPiano VSTi

Matt Henley nwmatt at gmail.com
Tue Oct 19 09:20:33 UTC 2010

> >> What runtime error did you encounter and what host did you use?
> >
> > I tried it in Ingen. With your code, when I double click plugin (to show
> > GUI) it reports "Failed to instantiate Plugin UI" and Ingen GUI freezes
> > (although, engine still runs in background).
> That's interesting. Unfortunately, I couldn't get Ingen to compile on
> my machine (running Arch), so I cannot test this at the moment. But I
> will look out for it and compare with other LV2 GUIs. I actually
> copied the code from the example in the GUI header file (forgot its
> name, will check at home).
> Any chance that this is a bug in Ingen? (It shouldn't crash, but I
> know I'm being a little bold to pass on the origin of the crash from
> my untested whacky haphazard code to a well-tested program which is
> used by many more people...)
> > I'm pretty new to templating too and, even though your code made some
> sense,
> > I was comparing it to another very simple example of LV2 GUI code (just a
> > button too but without MIDI support), and only difference in code (and in
> > crashing Ingen :)) was that line.
> Thanks for your input. I hope I can get Ingen compiled and see for
> myself where the problem lies.

I have found the best way to build ingen is to grab the entire svn tree (
instructions at http://drobilla.net/blog/software/ingen/ )and do a top level
make and make install.   Installing the programs piecemeal seemed to cause
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