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.
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
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).
(page 23-11).
The following is an example of how to create an endpoint that uses the infrared
communications tool:
communications tool:
myIrEP := {_proto:protoBasicEndpoint};
myOptions := [
myOptions := [
{ label: kCMSSlowIR,
type: 'service,
opCode: opSetRequired }
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.
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
connecting, or
listening
Controls how the
connection is made
connection is made
kCMOSlowIRProtocolType
"irpt"
After connecting
or accepting
or accepting
Read-only option returns
the protocol and speed of
the connection
the protocol and speed of
the connection
kCMOSlowIRStats
"irst"
After connecting
or accepting
or accepting
Read-only option returns
statistics about the data
received and sent
statistics about the data
received and sent