Report Builder specifies this constant in a SAM_ReportNotify message's lParam. Report Builder sends the SAM_ReportNotify message when it is finished formatting part of a report. When you process SAM_ReportNotify, you can check the lParam parameter value to see which part of the report Report Builder has just processed. RPT_DoneReportHeader indicates that Report Builder has completed processing the beginning of the report. Value = 45

public const int RPT_DoneReportHeader