The Status Line And Error Messages; Figure 8.2. Layout Of 5280 Screen Information - IBM 5280 Programmer's Manual

The Status Line and Error Messages
Figure 8.2 shows the layout of information as it appears on a 5280 screen.
Figure 8.2. Layout of 5280 screen information
Row 1 of the display is reserved for the status line, which provides information
about the operation of the system; row 2 is reserved for fixed position prompts.
These prompts are defined with the PMT keyword in a field description
statement as described in Chapter 2.
The remainder of the screen can be used as prompt lines by the COBOL
applications you write. The number of lines available depends on the size of
the screens available in your 5280 system.
Four status line formats are used depending upon the conditions being
displayed:
• Normal operations
• Keyboard error
• Device error
• COBOL Execution Error
The format of the status line for normal operations and for keyboard errors is
the same regardless of whether the program is written in COBOL, RPG, or
assembler.
(See either the Operator's Guide or the Messages Manual for a description of
the status line for normal operations and for keyboard errors.)
The format of the status line for device errors and execution errors differs
when generated by a COBOL program. These formats are discussed in the
sections that follow.
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