An application sends a ZGM_GETCOPYCELL message to copy a cell specified by cell index in wParam to the cell index specified in lParam.
ZGM_COPYCELL
wParam = (WPARAM)(int) iCellIndexSource; //cell index
lParam = (LPARAM)(int) iCellIndexDestination; //cell index
This message does not return a value.
Copying a cell will copy every attribute of the source cell into the destination cell.