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REAPER Plug-in Extension Development

REAPER plug-in Extensions are additional components which can add functionality to REAPER. These plug-ins are not plug-ins in the traditional "DAW" sense of plug-ins, in that they are not "Effect" plug-ins, but rather can do many of the following things:
  • Add support for reading/writing audio file types
  • Add support for external control surfaces (MIDI or otherwise)
  • Add support for importing other project formats
  • Add audio editor support for filetypes
  • Access many services provided by REAPER, including audio file read/write, audio hardware access, samplerate conversion, pitch shifting/time stretch, etc.
  • Many other things
Extensions for REAPER/win32 should be written in C++ and compiled using MSVC (pure virtual interface classes are used and as such the C++ ABI must be compatible -- sorry, mingw users).

Download: REAPER Extension Mini-SDK (last updated June 2 2008)
Includes:
  • RAW PCM_source example (framework for adding media file read support)
  • RAW PCM_sink example (framework for adding media file write support)
  • Control Surface extension source code (LGPL) -- REAPER's Control Surface support (includes support for MCU, BCF2K, TranzPort, AlphaTrack, HUI, and FaderPort)
  • M3U (mp3 playlist) project importer (how to write a project file import plug-in)
  • NINJAM loop retreival plug-in (shows how to add menu items and actions, insert media to project, etc)
  • More examples coming very soon.
For online browsing pleasure, the latest reaper_plugin.h and reaper_plugin_functions.h are also available.