API:Vcl.ComCtrls.THeaderControl.OnSectionTrack
Delphi
property OnSectionTrack: TSectionTrackEvent read GetOnSectionTrack write SetOnSectionTrack;
C++
__property TSectionTrackEvent OnSectionTrack = {read=GetOnSectionTrack, write=SetOnSectionTrack};
Properties
Type | Visibility | Source | Unit | Parent |
---|---|---|---|---|
event | published | Vcl.ComCtrls.pas Vcl.ComCtrls.hpp |
Vcl.ComCtrls | THeaderControl |
Description
Occurs as one of the header control's sections is being resized.
Vcl.ComCtrls.THeaderControl.OnSectionTrack inherits from Vcl.ComCtrls.TCustomHeaderControl.OnSectionTrack. All content below this line refers to Vcl.ComCtrls.TCustomHeaderControl.OnSectionTrack.
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.