Core Text - Height of glyph

Question

I have 2 attributed strings say \'A\' and \'.\'

I need to calculate the height of each of these strings. Currently the height returned is the same for both, it seems to

Answer 1

Got there in the end, you can do it like this:

// Create an attributed string
CTLineRef line = CTLineCreateWithAttributedString(_string);

// Get an array of glyph runs from the line
CFArrayRef runArray = CTLineGetGlyphRuns(line);

// loop through each run in the array      
CTRunRef run = ....

// Get the range of the run         
CFRange range = CFRangeMake...

// Use CTRunGetImageBounds                                  
CGRect glyphRect = CTRunGetImageBounds(run, context, range);

// glyphRect now contains the bounds of the glyph run, if the string is just 1 character you have the correct dimensions of that character.