The number of lines below the current line to be locked in memory.

A Long value.  

object.LinesBelow [= value]

The LinesBelow Property syntax has these parts:

The LinesAbove (smaller Y) and LinesBelow (larger Y) properties are only relevant in-process if you call the GetLinePointer method. These properties specify a range of lines (of the McRegionAccess Width) that are guaranteed to be at the same memory address they were at the last GetLinePointer call. Note that you will need to access lines above and below by offsetting the memory address by the McPixelPointer.RowStride. Never assume that the pointer returned by one GetLinePointer method call is still valid after a second such call.