DCL:GRPH1:SWPACK: Machine-Dependent Routines:Explanation of Subroutines: Control Routines
Opens/closes a device.
CALL SWDOPN
CALL SWDCLS
None.
- (a)
- All SWPACK routines except for SWpSET(SWpSTX) and SWCSET(SWCSTX) are called between these routines.
- (b)
- STPACK performs the rotation of the coordinate system.
- (c)
- The internal variable 'IWS' handled by SWpGET/SWpSET must be set before calling SWDOPN. This internal variable is usually set in SGOPN.