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_DoneBreakHeader1 through RPT_DoneBreakHeader8 are before a report's detail block. Value = 53

public const int RPT_DoneBreakHeader6