Usability focus in Dplug Meeting

[p0nce]

Here are the difficulties Dplug users have reported 04/10/2024:

• identifier nextBuffer dislike, would expect processBuffer (process? processBlock?)
• have never read the code of UIElement, relying on DDoc on arsd instead => now rewritten to be nicer to read
• difficulties with struct and the fact they are copied not reference types. eg. in a foreach => that's a dlang issue
• believe they can't allocate, or that they can allocate with reallocBuffer in audio thread. In reality we can with Vec since capacity maxing, but not reallocBuffer. Clarify.
• doesn't manage to find mouse release, the way to do it is starting a drag operation and catch onStopDrag => DDoc
• miss nothrow @nogc in class/struct, then create closures using stdlib => make nothrow @nogc a bit more systematic in examples
• do not know about debugLogf
• general difficulty to debug or profile => looked at the new user procedure more
• do not always know build types of DUB => would need a DUB introduction?