Re: Ink
Re: Ink
- Subject: Re: Ink
- From: Ricky Sharp <email@hidden>
- Date: Thu, 26 Jan 2006 17:20:18 -0600
Raleigh,
Thank you very much for your very detailed description!
Currently, I allow users of my app to write their answers to math
problems. It really works well!
I will definitely file a few enhancement requests about adding a
Cocoa wrapper. I would really like to see something like this:
- (void)inkText:(NSString*)text;
- (void)inkGesture:(int)gesture;
That's basically what I added as wrappers around handling the Ink
carbon events.
One problem I initially had though was when I would write my number
such that digits were spaced a bit apart (beyond the tolerance as set
by the system prefs), each digit would produce a separate event. To
solve this, I just enqueue recognized text into a buffer (NSString)
and only dispatch that string after a certain delay. Basically, if I
get multiple Ink events that are very close together, I coalesce them
into a single string.
Do you think that coalescing should also be handled by the Cocoa
APIs? I'm thinking that it would be best to just get a single
NSString back. Apple could just inject spaces in between the
individual recognized strings. One could then just filter out the
spaces if need be (basically what I'd do in my case).
One final thing I thought I'd share is that because I only accept
digits as input, I convert '\', '/', '|' and 'l' to ones and captial/
lower-case 'O' to zeroes. This greatly helps the accuracy of the input.
___________________________________________________________
Ricky A. Sharp mailto:email@hidden
Instant Interactive(tm) http://www.instantinteractive.com
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