ItemOnMonitor MonitorIndex value meanings

ItemOnMonitor MonitorIndex value meanings

Hello colleagues.
How should MonitorIndex calculated for DynPictures.ItemOnMonitor call?
Some tests shows me that left monitor has MonitorId = 256, right = 257.
Is there some common formula of MonitorId calculation?

This is a migrated post! Originally posted on 06.11.2015 by user stolyarov_as. Please be aware that information can be outdated.