On Tuesday, 15 Jan 2002, Martin Waitz wrote: > is there already a way in gimp to do background calculations? > i.e. perform some lengthly calculations while user interaction > is still possible? Have a look at how the gradient fill tool does it. Its a horrible hack at the moment, and there's no locking (as of 1.2.2) Do we have locking in 1.3.x? Austin