GPPointFileInfo\TrackCancel.cs
Creating a non-trival custom GP tool - inputs, outputs, and responding to environment settings
GPPointFileInfo\TrackCancel.cs
// Copyright 2008 ESRI
// 
// All rights reserved under the copyright laws of the United States
// and applicable international laws, treaties, and conventions.
// 
// You may freely redistribute and use this sample code, with or
// without modification, provided you include the original copyright
// notice and use restrictions.
// 
// See use restrictions at <your ArcGIS install location>/developerkit/userestrictions.txt.
// 

namespace GPPointFileInfo
{
    public class TrackCancel : GPPointFileInfo.ITrackCancel
    {
        private ESRI.ArcGIS.esriSystem.ITrackCancel _trackCancel;

        public TrackCancel(ESRI.ArcGIS.esriSystem.ITrackCancel trackCancel)
        {
            _trackCancel = trackCancel;
        }

        public bool IsCancelPressed
        {
            get
            {
                return !(_trackCancel.Continue());
            }
        }

        public void Cancel()
        {
            _trackCancel.Cancel();
        }
    }
}