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Vcl.Controls.TControl.OnMouseWheelUp

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Delphi

property OnMouseWheelUp: TMouseWheelUpDownEvent read FOnMouseWheelUp write  FOnMouseWheelUp;

C++

__property TMouseWheelUpDownEvent OnMouseWheelUp = {read=FOnMouseWheelUp, write=FOnMouseWheelUp};

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 upward.

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

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

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