Enhanced version of Cockos' iPlug - A simple-to-use C++ framework for developing cross platform audio plugins and targeting multiple plugin APIs with the same code. VST / VST3 / Audiounit / RTAS / AAX (Native) formats supported. NOTE: THIS IS OBSOLETE, PLEASE SEE IPLUG2:
https://github.com/olilarkin/wdl-ol/blob/b0b674e845296beb9a3e3129d127637c863a57d8/IPlug/IGraphics/IGraphicsAGG.h#L196