onTertiaryLongPressStart property Null safety

GestureLongPressStartCallback? onTertiaryLongPressStart
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Called when a long press gesture by a tertiary button has been recognized.

This is equivalent to (and is called immediately before) onTertiaryLongPress. The only difference between the two is that this callback contains details of the position at which the pointer initially contacted the screen, whereas onTertiaryLongPress does not.

See also:


GestureLongPressStartCallback? onTertiaryLongPressStart;