Synopsis

callback [subcommand] [-option value...]

Description

Set or remove callback functions.

Subcommands

callback create [script] [-option value...]

Create a callback function and returns its ID. The function is called until it returns another code than ok (e.g. return -code break) or until it is deleted with the delete subcommand.

Options

 -interval integer or "idle" (default: idle)

If interval is an integer, script is called every interval milliseconds. If its "idle" script is called whenever there are no other events pending.

-priority integer (default: 0) 

 Priority with which this callback is handled. Negativ values mean lower priority than normal, positiv values mean higher priority than normal.

callback delete [ID]

Deletes the callback function with the ID ID.