RtMidi - a set of C++ classes that provides a common API for realtime MIDI input/output across Linux (ALSA), SGI, Macintosh OS X (CoreMidi), and Windows (Multimedia) operating systems.

By Gary P. Scavone, 2003-2009.

v1.0.8: (29 January 2009)
- bug fixes for concatenating segmented sysex messages in ALSA (thanks to Christoph Eckert)
- update to ALSA sequencer port enumeration (thanks to Pedro Lopez-Cabonillas)
- bug fixes for concatenating segmented sysex messages in OS-X (thanks to Emmanuel Litzroth)
- added functionality for naming clients (thanks to Pedro Lopez-Cabonillas and Axel Schmidt)
- bug fix in Windows when receiving sysex messages if the ignore flag was set (thanks to Pedro Lopez-Cabonillas)

v1.0.7: (7 December 2007)
- configure and Makefile changes for MinGW
- renamed midiinfo.cpp to midiprobe.cpp and updated VC++ project/workspace

v1.0.6: (9 March 2006)
- bug fix for timestamp problem in ALSA  (thanks to Pedro Lopez-Cabanillas)

v1.0.5: (18 November 2005)
- added optional port name to openVirtualPort() functions
- fixed UNICODE problem in Windows getting device names (thanks Eduardo Coutinho!).
- fixed bug in Windows with respect to getting Sysex data (thanks Jean-Baptiste Berruchon!)

v1.0.4: (14 October 2005)
- added check for status byte == 0xF8 if ignoring timing messages
- changed pthread attribute to SCHED_OTHER (from SCHED_RR) to avoid thread problem when realtime cababilities are not enabled.
- now using ALSA sequencer time stamp information (thanks to Pedro Lopez-Cabanillas)
- fixed memory leak in ALSA implementation
- now concatenate segmented sysex messages in ALSA

v1.0.3: (22 November 2004)
- added common pure virtual functions to RtMidi abstract base class

v1.0.2: (21 September 2004)
- added warning messages to openVirtualPort() functions in Windows and Irix (where it can't be implemented)

v1.0.1: (20 September 2004)
- changed ALSA preprocessor definition to __LINUX_ALSASEQ__

v1.0.0: (17 September 2004)
- first release of new independent class with both input and output functionality