Added sample for event processing in a canvas.
Added sample for event processing in a canvas.

libavg/libavg,hoodie/libavg,scotty007/libavg,scotty007/libavg,th3infinity/libavg,yyd01245/libavg,libavg/libavg,yyd01245/libavg,libavg/libavg,th3infinity/libavg,yyd01245/libavg,hoodie/libavg,hoodie/libavg,th3infinity/libavg,hoodie/libavg,scotty007/libavg,scotty007/libavg,yyd01245/libavg,libavg/libavg,th3infinity/libavg