2013/11/17 Matthew Flatt <mfl...@cs.utah.edu>: > At Fri, 15 Nov 2013 23:03:21 +0100, Jens Axel Søgaard wrote: >> Anyways, since pict-height didn't return the correct height, I tried: >> (send (dc-for-text-size) get-text-extent "√" font)) >> but I am not able to make sense of the results. For most fonts >> I get a height of 30, but others give the height 34 (a number that I didn't >> see from pict-height. >> >> [...] >> >> 2) Why are the numbers from pict-height and get-text-extent different? > > Provide `#t` as the third argument to `get-text-extent` to enable > "combine" mode, which is what `text` uses by default. > > Since there's only one character to measure, you might expect that > "combine" mode has no effect, but measuring for non-combine mode > triggers rounding that is intended to preserve pixel alignment. In your > examples, when the height was 34 in non-"combined" mode, the height was > between 33 and 34 in "combine" mode.
Thanks for the tip. I thought "combine" affected the width only. -- Jens Axel Søgaard ____________________ Racket Users list: http://lists.racket-lang.org/users
