Event Handlers
62
NetLinx Programming Language Reference Guide
 CHANNEL refers to:
 LEVEL refers to:
Button events
Button events include pushes, releases, and holds. These events are associated with a push or release on
a particular device-channel. A sample button event is shown below:
BUTTON_EVENT[DEVICE,CHANNEL] or BUTTON_EVENT[(DEVCHAN[ ])]
{
PUSH:
{
// PUSH event handler
}
RELEASE:
{
// RELEASE event handler
}
HOLD[TIME]: or HOLD[TIME, REPEAT]:
{
// HOLD event handler
}
}
A HOLD event handler specifies the actions that should be performed when a button is pressed and held
for a minimum length of time indicated by the
TIME parameter (TIME is specified in .10 second
increments). The
REPEAT keyword specifies that the event notification should be repeated in TIME
increments as long as the button is held.
The
BUTTON object is available to the button event handler as a local variable. The following table lists
the information contained in Button Objects.
CHANNEL A single channel number constant
CHAN[ ] An integer array of channel numbers
DEVCHAN[ ] A device-channel array
LEVEL A single level number constant
LEV[ ] An integer array of level numbers
DEVLEV[ ] A device-level array
The processing of an event associated with a given member of a device, channel,
device-channel, level, or device-array must be completed before processing can
begin on another event associated with the same array.
To Next Page
Loading...
Need help?
General
