LV2 Programs is an LV2 Extension that allows a host to access plugin-side midi-mapped programs (ala DSSI style, but for LV2).
It is not the same as LV2 Presets, which defines host-side presets where the plugin has no control or role whatsoever.
C header file: lv2_programs.h
List of plugins that use this extension:
List of hosts that use this extension: