GETACTIVEOBJECTFLAGS

GETACTIVEOBJECTFLAGS_NONE	Only the topmost parent of each chain is added.
GETACTIVEOBJECTFLAGS_CHILDREN	Child objects are added to the selection too, provided they are selected.
GETACTIVEOBJECTFLAGS_SELECTIONORDER	The selection array is sorted in the selection order, e.g. the first selected object is the first element in the array.