SCREEN Section

The SCREEN section of the form specification file specifies the vertical and horizontal dimensions of the physical screen, and the position of one or more display fields and other information that will appear on the screen form. This section is required. It has the following syntax:

lines is a literal integer that specifies how many lines of characters (measured vertically) the form can display. The default is 24.

characters is a literal integer, specifying how many characters (measured horizontally) a line can display. The default is the maximum number of characters in any line of the screen-layout.

The SCREEN keyword is required. As in other sections of a form specification file, the keyword END is not required, but it is recognized by the Form Compiler to provide compatibility with earlier Informix products.

A single pair of braces ( { } ) symbols, immediately preceded and immediately followed by Newline characters, must enclose the screen-layout. Do not use braces ( { } ) as comment indicators within the SCREEN section.

The Screen Layout

The screen-layout of the SCREEN section must be enclosed in braces ( { } ). It consists of display fields and (optionally) text characters.

field-tag is 4GL identifier of no more than 50 characters within each field. The length of a field tag cannot exceed the field width.

character is a printable character of text that will appear in the form.