ArcObjects Library Reference (Editor)  

IEditLocation Interface

Provides access to the Editor's Location property.

Product Availability

Available with ArcGIS Desktop.

Members

Description
Read/write property Location The last known location of the mouse.

Remarks

This interface was added specifically to allow alternative input of the editor's location property.

Generally, the ::Location() of the editor is set using the current tool via right click(ing) within the display.

However, issues arise when attempting to co-create and show the edit sketch context menu (as an external AO developer).  This context menu uses the location of the editor to hit test for a valid geometry.  If no valid sketch geometry is found, the context shown will fall back to the default for the display.