Determines how an image frame is initiated within an acquisition stream.

Values of this enumeration:

• Off
• Freerun
• Line0
• Line1
• Line2
• Line3
• Line4
• FixedRate
• Software
• SoftwareSignal0
• SoftwareSignal1
• Action0
• Action1
• Counter0Active
• Counter1Active
• Counter2Active
• Counter3Active
• CC1
• CC2
• CC3
• CC4
• LinkTrigger0