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DCL:GRPH1:SGPACK: User Interface:Explanation of 
Subroutines: Control
   
2.4.3 SGCLS
 
- 1.
 - Function
Closes (shuts down) a graphics workstation (output device).
  
   - 2.
 - Call
  
CALL SGCLS  
  
   - 3.
 - Explanation of parameters
  
None.
  
   - 4.
 - Notes
  
- (a)
 - This should only be called once after all GRPH1 subroutines.