Using more than one map to present and process alphanumeric information

GDDM V3R2 Base Application Programming Guide

Using more than one map to present and process alphanumeric information

GDDM V3R2 Base Application Programming Guide
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For most applications, you will find it necessary to two or more maps to format the screen. For instance, you might want to use one map to allow the end user to ask a question, and then a second to give the answer. You would probably want the first map to remain on the screen while the second one is displayed.

GDDM enables you to put many maps onto a page provided there is space, and the maps do not overlap with each other. The section "Using maps with positions fixed by GDDM-IMD" in topic 15.5.1 gives further information.

In some applications, you may need to repeat a set of fields several times. For a data-entry application, for instance, you might need to fill the screen with many copies of a single set of input fields, each set being one or a few lines deep. You can do this by having several copies of the same map.

For such applications, GDDM-IMD enables you to define floating maps. You do not have to calculate where to put these on the page. GDDM positions a floating map at the next available location, rather than at a location specified either to GDDM-IMD, or to GDDM by the program.

An example of using floating maps is given in "Using several maps that position themselves relative to each other" in topic 15.5.2.

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