Kristian Adrup wrote in message <44776@palm-dev-forum>...
>Hi,
>I know that I can't use the serial port and IR port at the same time since
>they share the same UART. My app sends/receives data through IR using
>Netlib. If a user has a Palm portable keyboard and hits a key during a
>transfer he will get an error. Can I disable the PPK somehow during the
>transfer? Currently I don't have a PPK in my posession so I can't test it.
>I haven't been able to find any info on how the PPK driver works, I guess
>it traps som system event handlers and waits for a hotsync signal. Any
>ideas?
Ok, I've thought a bit more on this one. The keyboard driver does patch
sysTrapEvtGetEvent, and there doesn't seem to exists any API to programmatically
disable the driver. So my idea is to patch sysTrapEvtGetEvent myself and when my app
is in connected state redirect EvtGetEvent calls to the original(Palm) EvtGetEvent
routine, instead of the keyboard EvtGetEvent which normally gets called. My question
is how do I know the address of the original EvtGetEvent? Is there a way to get it
from the system or do I have to figure out where the keyboard driver saves it? If I
patch a trap with SetTrapAddress() and then reset the palm, the trap reverts back to
its original handler. So there ought to be some way for me to get the original
address, at least I hope so!
Regards,
Kristian Adrup
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