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 | | Quintiq file version 2.0 |  | #parent: #root |  | Function CalcHistoricalDuration |  | { |  |   TextBody: |  |   [* |  |     // DWE2 Apr-29-2016 (created) |  |      |  |     value := Duration::Zero(); |  |      |  |     if( this.IsHistorical() |  |         or this.IsPartialHistorical() ) |  |     { |  |       value := this.MacroPlan().StartOfPlanning() - this.Start(); |  |     } |  |      |  |     this.HistoricalDuration( value ); |  |   *] |  | } | 
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