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Reference for unit 'Classes' (#rtl)

TBasicAction.Change

Calls the OnChange handler.

Declaration

Source position: classesh.inc line 1715

protected procedure TBasicAction.Change; virtual;

Change calls the OnChange handler if one is assigned.

Application programmers should not call Change directly. It is called automatically if a property of an action component changes.

Descendent classes of TBasicAction should call explicitly call Change if one of their properties that affect client controls changes its value.