Vcl.StdCtrls.TScrollEvent
Delphi
TScrollEvent = procedure(Sender: TObject; ScrollCode: TScrollCode;
var ScrollPos: Integer) of object;
C++
typedef void __fastcall (__closure *TScrollEvent)(System::TObject* Sender, System::Uitypes::TScrollCode ScrollCode, int &ScrollPos);
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
type typedef |
public | Vcl.StdCtrls.pas Vcl.StdCtrls.hpp |
Vcl.StdCtrls | Vcl.StdCtrls |
Description
TScrollEvent is the type of an Vcl.StdCtrls.TScrollBar.OnScroll event handler.
TScrollEvent defines the type of method procedure that you must define in order to implement the OnScroll event of a visual component such as TScrollBar.
The OnScroll event occurs when the user scrolls a scroll bar with the mouse or keyboard.
Sender is a reference to the component invoking the OnScroll event.
ScrollCode defines the user scroll action that was performed.
ScrollPos provides the new scroll position.