Key Event Constants

The key event mechanism

Each time a key is pressed, held and released a number of events get generated. Here is a typical flow:

• when a key is pressed a FIRST event is generated

• if the key continues to be pressed, then after a while a LONG event is generated

• if the key continues to be pressed, then a REPEAT events are being generated

• when the key is released a BREAK event is generated

Couple of examples:

• a short press on key would generate: FIRST, BREAK

• a longer pres on key would generate: FIRST, LONG, BREAK

• even longer press: FIRST, LONG, REPEAT,REPEAT, ..., BREAK

This normal key event sequence can be altered with the killEvents(key) function. Any time this function is called (after the FIRST event) all further key events for this key will be suppressed until the next key press of this key. Examples:

• kill immediately after the key press would generate: FIRST

• kill after the long key press would generate: FIRST, LONG

Constants

The event parameter in the Telemetry and One-Time scripts run function actually carries two pieces of information:

• key number

• type of event

The two fields are combined into one single number. Some of these combinations are defined as constants and are available to Lua scripts:

Radios with rotary encoder (X7 and Horus) have also:

Virtual events

Given the large number of radios supported by OpenTX, and the large difference in keys available on those, a set of VIRTUAL KEYS has been defined and are mapped to best fit available hardware