Overview
Each type of descriptor is stored as an individual XML element situated within the <description> element of one macro screen.
You do not have to understand all the types of descriptors at first.
Instead you should begin by becoming familiar with just two types:
- The Fields Counts and OIA descriptor (actually contains 3 individual descriptors)
- The String descriptor
Table 1 lists all the types of descriptors
and shows the number of descriptors of each type that are allowed
to exist in one macro screen (more specifically, in one <description>
element belonging to one <screen> element):
The following subsections describe each type of descriptor
in detail.
Type of descriptor: | Number of this type of descriptor allowed per macro screen: |
---|---|
Field Counts and OIA | 1 (required) |
String descriptor | 0 or more |
Cursor descriptor | 0 or 1 |
Attribute descriptor | 0 or more |
Condition descriptor | 0 or more |