User manual

172

Setting event notification

hEvent = CreateEvent( NULL, FALSE, FALSE, TEXT( “OBRScanningEvent” ) );

OBRSetScanningNotification( OBR_EVENT, NULL );

OBROpen( NULL, 0 );

WaitForSingleObject( hEvent, INFINITE );

Use OBRGetLastEventStatus to confirm parameter (scan success / failure)

Scan success ?

Data capture using OBRGets

Scan end ?

OBRClose();

CloseHandle( hEvent );

Yes

Figure 5.2 Flowchart

1. Named event is initialized.

2. Notification for scanning completion is set to event output with

OBRSetScanningNotification func

tion.

3. After opening the scanner with OBROpen func

tion, the flow waits until named event is issued

with WaitForSingleObject, etc.

4. After receiving the named event, conditions why the event is issued are checked with

OBRGetLastEventStatus function.

5. If scanning is succeeded, data output to each output destination will be processed.

6. Carry out OBRClose funct

ion to close the scanner.