Specifications

148
[ 2 ] I/O devices capable of being monitored by the event poll-
ing
Listed below are the I/O devices which the event polling can monitor.
* Only for models equipped with a touch screen
■ Monitoring with the INP Function
Combining the INP function with the above functions enables more elaborate programming for
event polling.
For the
INP function, refer to Appendix D, "I/O Ports."
I/O Devices Monitor Means Events
Keyboard
INKEY$ function
Input of one character
from the keyboard
Bar code reader
EOF or LOC function
Presence/absence of bar
code data input or the
number of read characters
(bytes)
Receive buffer
EOF, LOC, or LOF function
Presence/absence of
receive data or the num-
ber of received charac-
ters (bytes)
Timer
TIMEA, TIMEB, or TIMEC function
Timer count-up
Touch screen*
INKEY$ function
Input of one character
from touch keys