Structure: channel

Object Description:

External communications channel

Creation Command:

channel or open commands

Permitted Scope:

local, global or application

Array Capability:

Yes

Membership Potential:

compound, gstructure, structure, custom

Graphic Primitive Capability:

No

User Function Capability:

Yes, channel_function

.access

-

string

Access rights.

.alength

*

numeric

Array length.

.class

*

string

Identifier class. (channel)

.desc

-

string

Description.

.elements

*

string[24]

Structure element names.

.etypes

*

string[24]

Structure element types.

.is_proc

*

numeric

Whether identifier is a procedure/function.

.num_elements

*

numeric

Structure element count. (24)

.owner

*

string

Owner user-id.

.time

-

time

Modification time.

.type

*

string

Identifier type. (channel)

.variant

*

string

identifier variant. (identifier)

* = Read only element.

.atable

*

atable

Atable to be used during channel callbacks.

.binary

*

numeric

Whether or not channel is open for binary communication.

.close

*

procedure

Close the channel.

.customize

*

procedure

Extend the channel structure.

.delimiter

-

string

Delimiting character(s).

.done

-

callback

Statements to be executed on termination.

.eof

*

numeric

Whether at end-of-file

.exec

-

callback

Statements to be executed during polling.

.flush

*

numeric func

Flush input/output.

.format

-

string

Format for written output.

.id

*

numeric

Channel number.

.line

*

numeric

Current text file line number.

.menu_mode

-

numeric

Execution mode during polling.

.mode

*

string

Access mode.

.name

*

string

File or process name.

.poll

-

numeric

Whether polling is active.

.process_id

*

numeric

External process-id.

.query

*

procedure

Execute server commands en-bloc.

.rewind

*

numeric func

Rewind input.

.serverr

-

numeric

Server error status.

.session

*

procedure

Execute a block of server commands.

.signal

*

numeric func

Send a Unix signal.

.style

*

string

Channel type.

.timeout

-

numeric

Read time-out in seconds.

* = Read only element.