appbar OnUnhiding event
Example
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Applies to
acAppBar component.  

Declaration
type  
  TacAppBarHidingEvent = procedure(Sender: TObject; var AllowOperation: Boolean) of object;  
 
property OnUnhiding: TacAppBarHidingEvent;  

Description
The OnUnhiding event occurs when the docked and hidden appbar (with AutoHide = True) is about to appear on screen. This event occurs when user moves the mouse pointer over thin line on screen edge and appbar became visible.  
 
Set AllowOperation parameter in the event handler to False to discard the operation. See an example for more details.  

Remarks
The OnHiding and OnUnhiding events does not occurs when you call ShowHiddenAppBar method programatically.  

See also

AutoHide property and OnHiding event.