Specifications

145
Chapter 9
Event Polling and Error/Event Trapping
CONTENTS
9.1 Overview...................................................................................................... 146
9.2 Event Polling................................................................................................ 147
[ 1 ] Programming sample .............................................................. 147
[ 2 ] I/O devices capable of being monitored by the
event polling ............................................................................ 148
9.3 Error Trapping.............................................................................................. 149
[ 1 ] Overview ................................................................................. 149
[ 2 ] Programming for trapping errors ............................................. 150
9.4 Event (of Keystroke) Trapping..................................................................... 151
[ 1 ] Overview ................................................................................. 151
[ 2 ] Programming for trapping keystrokes ..................................... 151