| OpenTTD
    | 
Gestalt() and EnterMovies(). Needs changes in InitQuickTimeIfNeeded.  Class derives from NWidgetCore, but does not use #colour, #widget_data, or #tool_tip.
AddDirtyBlock as it neither set a dirty rect nor add several dirty rects although the function name is in plural. (Progman)   1.8.1.2
 1.8.1.2