LlDetectedKey

Returns a key that is the UUID of the detected object or avatar number.

number does not support negative indexes. Returns an empty key if number does not correspond to a valid sensed object or avatar.

llDetected* functions only work if called from within Detection events (collision, collision_start, collision_end, sensor, touch, touch_start, touch_end) or in functions called by Detection events. They will fail silently and return unusable values if called during other events.

default
{
    touch_start(integer num_detected)
    {
        llSay(0, "touch_start event: key of avatar touching: " + (string) llDetectedKey(0) );
    }
}

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Footnotes

function key llDetectedKey( integer number );