Newton Developer Technical Information: Newton Programmer's Guide: 2.1 OS Addendum /

Chapter 11 - Miscellaneous / Reference

Constants

Built-In Communication Tools

A new serial communication tool option is described.

Serial Communication Tool Sound Option

There is a new serial communication tool option for enabling sound pass-through using a PCMCIA card. Here is an example of what the option looks like:

 local option := {

type: 'option,
label:kCMOPCMCIAModemSound, //"msnd"
opCode:opSetRequired,
form: 'template,
result:nil,
data: {
      arglist: [nil],
      typelist: ['struct, 'boolean],
      },
 }

The arglist value is either true or nil. If true, sound pass-through is enabled. If nil, sound pass-through is disabled.

You would normally use this option with a PCMCIA modem using the serial tool. The modem tool automatically enables sound pass-through, so you should not need to use this option with the modem tool.

This option should be used only after the serial endpoint has connected.

Note

Sound pass-through should be disabled before the endpoint is disconnected. If it is not, power consumption increases and the speaker emits an annoying sound.

Sound pass-through only works for PCMCIA cards which support it through the PCMCIA specification.

This option is only for use in Newton OS 2.1 and higher.

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Subtopics

Serial Communication Tool Sound Option