captionbutton RefreshNCArea method
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Applies to
acCaptionButton component and all successors of TacFormHookComponent class (i.e: acAppAutoRun, acTrayIcon, acFormHelp, acFormTopmost and acFormRoller).  

procedure RefreshNCArea;  

The RefreshNCArea method repaints all non-client parts of window (i.e. frames, caption buttons etc). RefreshNCArea method automatically executes when buttons should recalculate their placement after changing of BtnOrder or SeparatorWidth values.  

See also

RefreshButton method.