I use an Mapobjects (from ESRI) active X to display maps in a Foxpro application. Most of the code works fine, but still i get problems in some topics. One of them its the following:

In several methods they return an object address. For example:

lins = map.TrackLine

Returns an object LINE that contains the line drawed by user. But sometimes the user can press the key ESC and then the method returns VB NOTHING. How can we test in VFP if an object is NOTHING??? (its not NULL or EMPTY).

Sincerely:

Edmundo Ríos Miranda