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 TRvSystem. OverridePreview event (read/write)  | 
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 Declaration procedure OverridePreview(RvSystem: TRvSystem; OverrideMode: TOverrideMode; var OverrideForm: TForm); 
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 Description This event allows the programmer to replace the default preview screen with a custom preview screen. See RpSYSTEM.PAS for more information. 
 See also TRvSystem Class, OverridePreviewProc  | 
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