Special Procedure SCROLL Command

The Special Procedure SCROLL Command allows the user to manipulate one or more independent SCROLLERS within a SCREEN definition.

Syntax:

SCROLL/options <cx> [<dgname>] <Scroller-name> ...

Options:

A - When last character of a field fills advance cursor to next field
Cn - Update only the number of records specified by n, then exit
N - Do not allow any field to change
W - Switch to APPEND mode after the last record so can add more
X - Suppress the command response
Y - Do not alter the command answer cells

Description:

The SCROLL Command requires a SCROLLER object within a SCREEN definition. This SCROLLER object is separate from the primary SCROLLER that is used in conventional SCROLLing SCREENs. The default SCROLLER Object in a SCREEN definition is characterized by a null object name. A SCREEN definition can have at most one default SCROLLER.

However, additional SCROLLERs can be defined in a SCREEN definition if they contain a unique, non-null object name.

A SCREEN definition must have at least one transfer field or one default SCROLLER in addition to any named SCROLLERs.

The collection/datagroup that are used with a SCROLLER must be distinct from those of any currently existing SCROLLER or SCREEN definition.

Note that the Special Procedure that invokes the SCROLL command resumes execution after the SCROLLER has been instantiated.