Occurs when the user selects the menu or toolbar Export command.
Syntax
Visual Basic
Public Event OnMainExportStart()
Remarks
When the user clicks on the menu or toolbar button View In New Window, it will first generate
the "OnMainExportStart" event, display the export dialog, then generate the
"OnMainExportFinish" event. Typically, the export process will complete after Prizm Viewer
has generated the "OnMainExportFinish" event.
