ArcObjects Library Reference (Display)  

esriScaleSnapping Constants

Scale snapping setting.

Constant Value Description
esriStandardScaleSnapping 0 Snap scales to a set of standard scales. Includes user scales.
esriUserScaleSnapping 1 Snap scales only to user scales.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.