VIEWPORTSELECTFLAGS

VIEWPORTSELECTFLAGS_NONE	None.
VIEWPORTSELECTFLAGS_USE_HN	Use HyperNURBS.
VIEWPORTSELECTFLAGS_USE_DEFORMERS	Use deformers.
VIEWPORTSELECTFLAGS_REGION_SELECT	A rectangle, polygon and lasso selection counts the number of vertices of a polygon within its area. Usually hidden vertices are not taken into account. This flag allows hidden vertices to be taken into account, otherwise it would not be possible to select polygons if for example all points are hidden.
VIEWPORTSELECTFLAGS_IGNORE_HIDDEN_SEL	Ignore hidden selection.
VIEWPORTSELECTFLAGS_USE_DISPLAY_MODE	If this flag is set and the display mode is Wireframe or Isoparms only edges and vertices are written into the ViewportSelect buffer. The ViewportSelect mode must be Mpolyedgepoint.
VIEWPORTSELECTFLAGS_FORCE_USE_DEFORMERS	Use deformers even when the viewport DISPLAYEDITSTATE_DEFORM is disabled.