Event Loop Of Application - Hitachi HT-4139-28 Developer's Manual

1 A p p l i c a t i o n D e v e l o p m e n t

1.2 Event loop of application

This driver reports followings when it is required to get data from a source, depending on the status of a
scanner.
MSG_XFERREADY：Completion of data transfer preparation
MSG_CLOSEDSREQ：Require to disable a source user interface
Event loop of application should be able to handle the report, MSG_NULL、MSG_XFERREADY、
MSG_CLOSEDSREQ.
(Note)
However it is possible to process only MSG_NULL、MSG_XFERREADY by following A-1 in the
appendix of this manual but it is not recommended.
1-2