Enumeration Members

Combine: 1

do not dispose > combine with previous frame

Replace: 0

unspecified > replaces entire frame

RestoreBackground: 2

restore to background > combine with first frame (background)

RestorePrevious: 3

restore to previous > restore to previous undisposed frame state then combine

UndefinedA: 4

undefined > fallback to Replace

UndefinedB: 5

undefined > fallback to Replace

UndefinedC: 6

undefined > fallback to Replace

UndefinedD: 7

undefined > fallback to Replace