Invoke snapping in IEngineEditSketch

Discussion created by shenglinxu on Sep 22, 2010
Latest reply on Dec 8, 2010 by shenglinxu
I have implemented IEngineEditSketch in a custom tool. In the OnMouseDown event handler, I can add a point to the edit sketch:

However, I don???t know how to invoke ESRI???s code to draw that blue circle in OnMouseMove event handler. Is it possible?
In another word, it is possible to invoke ESRI snap function in a custom tool programmatically? The key point is how to find out a snap point?