  Uncoordinated access to SMG display? 
 The Question is:
 
I create a Menue with SMG-Routines from witch I execute Programs and
 Commandfiles. The Output will be dispayed in a virtual Display. So long its
 ok, but if Programs use ESC-Sequenzes theese will not be displayed.
What can I do?
 
 The Answer is:
 
  Either the programs cannot use escape sequences (and thus corrupting
  the view of the display maintained by SMG), or you will want to use
  the following SMG routines to save and restore the display around the
  (uncoordinated) display updates:
 
    SMG$SAVE_PHYSICAL_SCREEN
    SMG$RESTORE_PHYSICAL_SCREEN
 
