Vcl.ComCtrls.TCustomHeaderControl.OnSectionTrack
Delphi
property OnSectionTrack: TCustomSectionTrackEvent read FOnSectionTrack write FOnSectionTrack;
C++
__property TCustomSectionTrackEvent OnSectionTrack = {read=FOnSectionTrack, write=FOnSectionTrack};
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| event | published | Vcl.ComCtrls.pas Vcl.ComCtrls.hpp |
Vcl.ComCtrls | TCustomHeaderControl |
Description
Occurs as one of the header control's sections is being resized.
The OnSectionTrack event tracks the dragging of a header section's border as it happens. OnSectionTrack occurs when the mouse pointer is positioned between two header sections and the left mouse button is pressed.
OnSectionTrack is of type TCustomSectionTrackEvent.