I am not a USB programmer either but have made quite a lot of use of
the HID Manager. But even there I would not call myself an expert so
others may want to correct what I say below.
I've got sample. The HID Explorer app is very useful. But it can
hardly react to the reader. If I set there i.e. key 7 it reacts only
in few of the cases I try to scan the code. Perhaps it's too fast.
- What to read to know all the terms?
I actually managed to get along pretty well with just that sample
code as it does all the hard stuff for you.
Wow! I have no idea what the values HID Explorer are so I'd like to
read some books first.
- Is possible to capture all the keystrokes produced by that HID device that
should go that the app my code is loaded in?
Starting in Panther you can capture a device with the HID manager so
it will not be available to other apps or even the system. You will
need to use kIOHIDOptionsTypeSeizeDevice (see the Panther headers
for more info) and modify the sample code accordingly.
Unfortunately the app has to run 10.2 or later :(. I'll try what
happens if I capture the external keyboard. If I get all they
keystrokes only myself or not.
- What would be the recommended steps for doing such app.
Build a basic app using the HID Utilties sample and take it from there.
OK.
- I believe this can be done without the kernel level code or am I wrong?
No need for going into the Kernel unless you want to capture the
device on pre-Panther systems.
And about the forwarding of the events, try AppleEvents ;-)
:) there'll be no need for forwarding events but it had to be really
fast do I'd use CFMach* or mach_msg stuff for that. I've spoke about
that with Steve Zellers.
Thanks,
Tomas
--
Ing. Tomas Zahradnicky, Jr.
Production Manager, 24U Software
Associate Member, Filemaker Solutions Alliance
mailto:email@hiddenhttp://www.24uSoftware.com
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