AcDbBasicFilter::LayerStatusMask Method

Determines whether the layer status mask has been set by using SetLayerStatusMask(). A nonzero return value indicates that objects on layers which are frozen, locked, or off are to be considered in the filtering process. A zero return value indicates that no layer mask is set and filtering will be applied to objects with normal layer status.

int LayerStatusMask() const;

Returns nonzero (true) if the layer mask is set, or zero (false) if it is not set.