I/O request,  - creating, 
IDCMP, 114
IECLASS_NEWPOINTERPOS, 106, 110
IECLASS_POINTERPOS, 110
iffparse.library, 35, 38, 353
IFF -->
Index Pulse, 317
IND_ADDHANDLER Command, 108
IND_REMHANDLER Command, 109
IND_SETMPORT command, 107
IND_SETMTRIG command, 107
IND_SETPERIOD Command, 113
IND_SETTHRESH Command, 112
IND_WRITEEVENT Command, 109
IND_WRITEEVENT command, 110
Input Device -->
Input Event Chain, 108 - multiple events, 108 - new events, 108
Input Events - generators of, 109 - intuition handling of, 108
Input Qualifiers, 114
Input Request Block, 103
InputHandler.a, 116
International Phonetic Alphabet, 144
Interrupt, 314
Intuition - as input device handler, 108 - mouse input, 104
IOAudio, 16
IOB_QUICK flag, 271
IOClipReq, 37
IOExtPar, 161
IOExtSer, 267
IOStdReq Structure, 63, 89, 249
IOTDF_INDEXSYNC flag, 316
IOTDF_WORDSYNC flag, 316
io_ParFlags, 166
io_PTermArray, 163, 165
io_SerFlags, 276
io_TermArray, 272