ofTrueTypeFont baseline

How do you get the baseline position of a string (ofTrueTypeFont)? I can get the bounding box, but I need to get the baseline position in that box.

I have a row that I am drawing text in. The text can change and I do not want the text to appear as if is moving up and down if some strings have capital letters and others have hanging letters.

the baseline is the “y” value you specify when you draw:

  
  
ofSetColor(127, 127, 127);  
ofLine(100,100,500,100);  
font.drawString("abcdefghijk", 100,100);  
  

here, for example, the baseline is 100.

take care!
zach