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typedef void __fastcall (__closure *TGrpButtonEvent)(System::TObject* Sender, int Index);


Type Visibility Source Unit Parent
typedef public Vcl.ButtonGroup.hpp Vcl.ButtonGroup Vcl.ButtonGroup


TGrpButtonEvent is a type of Button Group event handler.

TGrpButtonEvent defines the type of method procedure that you must define in order to implement the OnButtonClicked and OnHotButton events.

This event is invoked for a button in the button group.

Sender is a reference to the TButtonGroup invoking the event.

Index is the index of the button in the button group.

See Also