Vcl.Forms.TControlScrollBar.Tracking
Delphi
property Tracking: Boolean read FTracking write FTracking default False;
C++
__property bool Tracking = {read=FTracking, write=FTracking, default=0};
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| property | published | Vcl.Forms.pas Vcl.Forms.hpp |
Vcl.Forms | TControlScrollBar |
Description
Determines whether the form or scroll box moves before the thumb tab is released.
Use Tracking to control whether the scroll bar and associated control repaint while the thumb tab is dragged with the mouse. If Tracking is true, the image moves as the user drags the thumb tab. If Tracking is false, the image remains static until the thumb tab is released.
Repainting while the thumb tab is dragged can provide useful feedback to the user about how far the control has scrolled, but slows performance.