SUB Dplot_showstat(INTEGER I_status,Verbose)
!
! Prints status of variable I_status on the screen
! Designed to work best together with SUB Dplot_fprint
! 0 = ok, <>0 = Error
! Reserved error values: -10: Canceled by user
Dplot_showstat prints status of variable I_status on the screen (used in together with Dplot_fprint).