I’ll have a look why AlertWindow is not working (i know it was when i was writing it, but maybe something changed in JUCE and broke it)
One thing is 100% you can’t call ~AlertWindow(), this is the destructor of that class, all the lifetime of those classes is controlled in C++ or by the Lua’s garbage collector, don’t do that.
Also this won’t really do what you want, this is all done on one thread (the main GUI thread) so you won’t see any updates in the AlertWindow cause Lua will be blocking it with whatever you are doing, you’d need a new thread or the specialized class in JUCE called (ThreadWithProgressWindow) to do this stuff. It’s not implemented because threading lua and Ctrlr might cause loads of issues.
I’ll try to figure this out so we can make progress indicators for lengthy operations (this sort of stuff is partially implemented in the new program manager so hopefuly it won’t be needed, but i’ll think about it)
