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2.18 Referencing

You can use references to:

• Dynamically create and destroy components. In this way you can control the life span of components and  the memory use of your application. For information, refer to Dynamic Multi-Form Application.
• Pass values between components. Referencing is the most efficient way of communicating between components.
• Communicate with ActiveX (COM) components. For details, refer to ActiveX Controls.

References are set and used in:

• The REFERENCE parameter of the DEFINE_COM command
• The SET_REF command
• The IF_REF command
• In the PASS *BY_REFERENCE parameter of the DEFINE_MAP command

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