• How to use the three types of programming interface to GDDM-GKS (the nonreentrant, reentrant, and system programmer interfaces)

• Programming-language-dependent considerations

• Mixing GDDM-GKS functions and other GDDM functions.

• Using GDDM-GKS in a windowing environment

• Using GDDM-GKS workstations

• How workstations are opened

• How to replace the default error-handling procedure

• Using GDDM-GKS under various subsystems.

Subtopics:

• 4.1 Invocation of GDDM-GKS functions
• 4.2 FORTRAN language considerations
• 4.3 Considerations for languages other than FORTRAN
• 4.4 Mixing GKS functions and other GDDM functions
• 4.5 Using GDDM-GKS in a windowing environment
• 4.6 Using GDDM-GKS workstations
• 4.7 How workstations are opened
• 4.8 Error handling in GDDM-GKS
• 4.9 Using GDDM-GKS under various subsystems