iesniffer OnWBVisible event
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Applies to
acIESniffer component.  

  TacIEWebBrowserOnVisible = procedure(Sender: TObject; const URL: Stringconst Browser: IWebBrowser2;  
    Visible: WordBool) of object;  
property OnWBVisible: TacIEWebBrowserOnVisible;  

The OnWBVisible event occurs when the Web browser window is about to be shown or hidden.  
Write an OnWBVisible event handler to make adjustments to compensate for the appearance or disappearance of the Web browser window.  
The Browser parameter is the Web browser (IWebBrowser2 interface) whose Visible property is changing.  
Visible is True if the Web browser is about to appear, False if the Web browser is about to be hidden.  

See also
OnWBToolBar, OnWBStatusBar, OnWBMenuBar, OnWBTheaterMode and OnWBFullScreen events.