RAD Studio VCL Reference
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TButtonGroup.OnMouseWheelUp Event
TButtonGroup Class | TButtonGroup Members | ButtonGroup Namespace | Description | See Also
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Occurs when the mouse wheel is rotated upward.

Pascal
property OnMouseWheelUp: TMouseWheelUpDownEvent;
C++
__property TMouseWheelUpDownEvent OnMouseWheelUp;
Description

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. 

 

See Also
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