Help with Snapping on Custom Tools

[Corbinde_Bruin]

Hello,

I'm having trouble with following the basic snapping instructions

http://resources.arcgis.com/en/help/arcobjects-net/conceptualhelp/index.html#//0001000001s1000000

I can see these Interfaces in the API reference, but they come up as undefined when I try to use them in code.
ISnappingEnvironment
IPointSnapper
ISnappingFeedback

I have ESRI.ArcGIS.Geometry referenced.
Does anyone have working 10.1 code for snapping. I am attempting to use this functionality outside of an edit session.

Thank you,
Corbin de Bruin

[NeilClemmons · Accepted solution]

The library you need to reference is listed at the top of the help pages for these interfaces.  In this case, it is the Controls library.

[Anonymous User]

Corbin,
The following blog post may also be of help.
Incorporating snapping into custom tools

[Corbinde_Bruin]

Yes it is, thank you. I had already been using that, just totallly missed the "control" reference statement. Must have looked at it a million times.