FMX.StdCtrls.TTrackBar.Tracking

Delphi

property Tracking: Boolean read FTracking write FTracking default 1;

C++

__property Tracking = {default=1};

Type	Visibility	Source	Unit	Parent
property	published	FMX.StdCtrls.pas FMX.StdCtrls.hpp	FMX.StdCtrls	TTrackBar

Description

Indicates whether thumb tracking is active or not. The default value of Tracking is True.

FMX.StdCtrls.TTrackBar.Tracking inherits from FMX.StdCtrls.TCustomTrack.Tracking. All content below this line refers to FMX.StdCtrls.TCustomTrack.Tracking.

Indicates whether thumb tracking is active or not. The default value of Tracking is True.

The following table shows how the value of Tracking impacts the behavior of a track bar and the related events:

Tracking	Scenario	Behaviour	Events fired	IsTracking
`True` or `False`	Press an arrow key on the keyboard.	The Thumb moves for one "step".	OnTracking OnChange	`False`
`True`	Click on the Thumb of the track bar and move the Thumb.	The Thumb moves as much as you move it.	For each "step" of the movement: OnTracking OnChange	`True`
`False`	Click on the Thumb of the track bar and move the Thumb.	The Thumb moves as much as you move it.	For each step of the movement: OnTracking After you release the Thumb OnChange	`True`
`True`	Click anywhere on the track bar (excluding the Thumb).	The Thumb moves for one "step".	OnTracking OnChange	`False`
`False`	Click anywhere on the track bar (excluding the Thumb).	The Thumb moves to the position where you click.	OnTracking OnChange	`False`
`True` or `False`	Hold the `Shift` button and click anywhere on the track bar (excluding the Thumb).	The Thumb moves to the position where you click.	OnTracking OnChange	`False`