Re: keyboard events
Re: keyboard events
- Subject: Re: keyboard events
- From: Bill Cheeseman <email@hidden>
- Date: Mon, 21 Jan 2008 15:37:11 -0500
- Thread-topic: keyboard events
on 2008-01-21 2:48 PM, Glenn English at email@hidden wrote:
> I'm working on a program for the blind and visually impaired, and I'd
> like to get completer control of the keyboard. Is that possible?
>
> I'm handling keyboard events, but some of them are grabbed upstream and
> some of the things done are less than optimal for a user who can't see
> what's going on. It'd be really cool if I could keep the sound from
> being muted or the app from quitting. I'm not afraid of Quartz, but I'd
> just as soon not patch the kernel...
Quartz Event Taps can handle this. To play around with them, download my
free developer tool, PreFab Event Taps Testbench
<http://prefabsoftware.com/eventtapstestbench>.
In a couple of weeks I expect to release Event Taps Testbench 1.1. I expect
to make my Objective-C framework wrapping the Quartz Event Taps API
available then too, for a modest charge. Among other things, it lets you
capture hardware input events destined for any application or the system at
large, and then to suppress or modify them, or to insert additional
synthetic events, based on any criteria you like. With my framework, you can
do this with Objective-C delegate methods, an Objective-C callback method,
or Objective-C notifications. My framework only works with Leopard or newer,
because it supports Objective-C 2.0, 32-bit and 64-bit applications, and the
retain/release or garbage collected memory management model.
--
Bill Cheeseman - email@hidden
Quechee Software, Quechee, Vermont, USA
www.quecheesoftware.com
PreFab Software - www.prefabsoftware.com
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