New Post: usage ICancelProgressHandler in ClipPolygonWithPolygon

Hi

I have this problem and not found the solution:

I have 2 input Featureset:

IFeatureSet yourFset;
yourFset = fl1.DataSet;

FeatureSet fspcata = new FeatureSet(p.FeatureType);
...
fspcata.AddFeature(PolygonFeat1);
...

one output featureset

TestOutput.Filename = ("OutputClipPolygonWithPolygon.shp");

I want use ClipPolygonWithPolygon in this mode

ClipPolygonWithPolygon testmyclip = new ClipPolygonWithPolygon();
testmyclip.Execute(yourFset, fspzonz, TestOutput, CancelHandle);

but CancelHandle???? I no understand the usage

please help me...
thanks

Alberto