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Vcl.Controls.TControl.OnMouseWheelDown

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Delphi

property OnMouseWheelDown: TMouseWheelUpDownEvent read FOnMouseWheelDown  write FOnMouseWheelDown;

C++

__property TMouseWheelUpDownEvent OnMouseWheelDown = {read=FOnMouseWheelDown, write=FOnMouseWheelDown};

Properties

Type Visibility Source Unit Parent
event protected
Vcl.Controls.pas
Vcl.Controls.hpp
Vcl.Controls TControl

Description

Occurs when the mouse wheel is rotated downward.

Write code in the OnMouseWheelDown event handler to perform actions when the mouse wheel is rotated downward. OnMouseWheelDown occurs only if the message is not already handled in an OnMouseWheel event handler.

OnMouseWheelDown is an event handler of type Vcl.Controls.TMouseWheelUpDownEvent.

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