Passing Data into Screen Functions

If you want to pass data from a P4API calling program, you may want the user to have only limited access to that data: for example, you may not want its value to be changed. The situation may be complicated by differing needs if the screen is allowed to have multiple iterations. To help control data integrity while offering programmer flexibility, a Screen field attribute of Pre-Load has been implemented (not in an S/390 environment), to augment No-Change and Auto-Repeat. This attribute is discussed further in Pre-Load Fields.

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Topic ID: 540108