GPR_$ENABLE_DIRECT_ACCESS         GPR Calls          GPR_$ENABLE_DIRECT_ACCESS


NAME
     gpr_$enable_direct_access - ensures completion of display hardware opera-
     tions before the program uses the pointer to access display memory.

FORMAT
     gpr_$enable_direct_access (status)

DESCRIPTION
     This routine ensures completion of display hardware operations before the
     program uses the pointer to access display memory.

   Output Parameters
     status
          Completion status, in status_$t format.

SEE ALSO
     gpr_$inq_bitmap_pointer.

NOTES
     If a program uses the  gpr_$inq_bitmap_pointer  to  get  the  address  of
     display  memory  for  a  monochromatic  or  color display, it should call
     gpr_$enable_direct_access after any calls that  change  the  display  and
     before using the pointer returned from the gpr_$inq_bitmap_pointer.