Manual Inspecta Software

2.4.3.8 mvfg_get_event (DWORD event_id )
Synopsis: Handle mvfg_get_event( DWORD event_id )
Software
Description: mvfg_get_event() returns the handle of an Inspecta events.
Inspectas driver serves this event in its interrupt service routine and signals
the status of the capture process.
This event is a „manual reset event object“, which will be set but not reset
by the driver.
Following Event-ID’s are defined:
ID Description
MVFGEVENT_VALID_FLAG The event is set (signaled), as soon
as an image is completely captured.
Returns: != NULL Handle of the event.
== NULL Handle not available.
Example: // capture a frame with the Valid-Flag Event:
// get handle for the Valid-Flag Event
hValidFlagHandle = mvfg_get_event( MVFGEVENT_VALID_FLAG );
ResetEvent( hValidFlagHandle ); // clear Valid-Flag Event
mvfg_set_vflag( 3 ); // trigger input of next frame
// Wait for frame ready, timeout 1s
WaitForSingleObject( hValidFlagHandle, 1000 );
Remark: this funktion is only available with WiNT/2K/XP
INSPECTA Software Rev. 1.47 Page 32