GDDM V3R2 Base Application Programming Guide
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Appendix D. Programming with GDDM under IMS

GDDM V3R2 Base Application Programming Guide
SC33-0867-01
This appendix describes the use of GDDM under the IMS operating system. It covers the following topics:
  • Restrictions on the use of GDDM under IMS
  • Application program structure
  • Link-editing a GDDM application
  • Using the system programmer interface with dynamic load
  • PSBs for GDDM applications
  • Data sets and file processing
  • The IMS default error exit
  • GDDM and MFS
  • GDDM DL/I interface
  • IMS considerations for GDDM utilities
  • GDDM object import/export utility
  • Examples of JCL.
The use of the IMS version of the GDDM print utility is described in the GDDM System Customization and Administration book.
Application programs for IMS should carefully follow the instruction given under "The structure of GDDM application programs for use on IMS" in topic D.2. Careful note of the restrictions should also be taken. The IMS samples in Appendix A, "GDDM sample programs" in topic A.0 can be used as a model for application programs.
The description in this appendix assumes a working knowledge of IMS.

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