How to loosen a painted screw

I have been working on some painting projects around the house and I needed to remove a badly damaged screen door.  As you can see from the picture, the hinge had been painted over many times.  I tried and tried and was afraid I would strip the head of the screw.  I was  using a heat gun to strip the paint, so I decied to heat the hinge with the heat gun and tried again.  It worked!!

Tools used and hinge removed…YEA