No line spacing when using drawline

@NebbishHacker
I was thinking about this strategy for my drawstring override:

• get the area that is going to be covered by the string using fontHeight/fontWidth accounting for newlines in the string
  
• clear this area with clearRect
  
• then call the original drawstring
  
• done, nice and simple, no further bookkeeping.
  
  

But using getModified is more universal as it seems to cover all graphics. I have an App that uses many screens, so I would have to do a lot of bookkeeping with the different getModified areas.

Hmmmmm...... pondering .........