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C H A P T E R 2 4
Built-in Communications Tools
24-8
Infrared Tool
Infrared Tool
24
You use the infrared (IR) communications tool to perform half-duplex infrared
communications. Since the infrared tool does not support full-duplex communica-
tions, you cannot activate an input specification and expect to output data.
The infrared tool supports packetized data, which means that an endpoint can
include
kPacket
,
kEOP
, and
kMore
flags to control sending and receiving framed
(packetized) data. For more information on these flags, see "Sending Data"
(page 23-11).
The following is an example of how to create an endpoint that uses the infrared
communications tool:
myIrEP := {_proto:protoBasicEndpoint};
myOptions := [
{ label: kCMSSlowIR,
type: 'service,
opCode: opSetRequired }
];
returnedoptions:= myIrEP:Instantiate(myIrEP, myOptions);
The infrared tool supports three options, which are summarized in Table 24-5.
These options are described in detail in "Options for the Infrared Tool"
(page 21-65) in Newton Programmer's Reference.
Table 24-5
Summary of Infrared Options
Label
Value
Use when
Description
kCMOSlowIRConnect
"irco"
When initiating,
connecting, or
listening
Controls how the
connection is made
kCMOSlowIRProtocolType
"irpt"
After connecting
or accepting
Read-only option returns
the protocol and speed of
the connection
kCMOSlowIRStats
"irst"
After connecting
or accepting
Read-only option returns
statistics about the data
received and sent
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