RAD Studio VCL Reference
TActionList.OnChange Event

Occurs when a change occurs in the action list.

property OnChange: TNotifyEvent;
__property TNotifyEvent OnChange;

Write an OnChange event handler to update your application in response to changes in the action list. Changes to the action list that trigger an OnChange event include changes to an action category or to the action list's image list.

Note: The action list automatically informs the actions in the list when an OnChange event occurs. You need only provide an OnChange event handler for application-specific responses.

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