RAD Studio VCL Reference
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Occurs when a popup menu item is to be placed on the popup action bar.
property OnGetControlClass: TGetControlClassEvent;
__property TGetControlClassEvent OnGetControlClass;
Write an OnGetControlClass event handler to specify the class of item that the action bar should create to represent a specified action client.
Sender is the action band that needs to generate a child control to represent an action client.
AnItem is the action client that the new control should represent.
ControlClass returns the class reference for the new control. This should be a descendant of TCustomActionControl
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