OK... I sorted it out
I modified the current cCJGridControl.pkg that I had as follows:
- added cCJGridControl.pkg and SigCjw_reportcontrol.pkg
- added Class declarations (from OldcCJReportControl.pkg) for
- cCJIReportItemButton
- cCJReportItemButton
- cCJIReportItemControls
- cCJReportItemControls
- cCJIReportHitTestInfo
- cCJReportHitTestInfo
- made several changes for several declarations from "XTP..." to "OLEXTP..."
Attached is my updated package that now works in DF24.0