Input point monitors are invoked for all string and digitizer events when a point is being acquired, or when forced entity picking is enabled. Input point monitors can view the final point position and can display a ToolTip string. The ToolTip string can be set by using the appendToTooltipStr and additionalTooltipString parameters when creating the input point monitor.
Input point monitors are processed after all other input point computations are performed by AutoCAD, including custom input point filtering if a filter exists. The output points are still subject to AutoCAD XYZ point filtering.
There can be any number of input point monitors active at a given time, since they only allow viewing of the input points.