Screen Mode - Intermec CK30 Programmer's Manual

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TE 2000 5250 Terminal Emulation Programmer's Guide

3) Screen Mode

3) Screen Mode selects the cursor position and movement as you scroll
through data in the display buffer. This buffer stores data in a standard
CRT format (as sent from the host computer). Since the terminal display
is smaller than a CRT, these 3) Screen Mode options optimize your view
of information (data) on the display. Default is 2) Corner Mode.
Use arrow keys to scroll (or "move") the screen's view port on the display.
Screen Mode
1) Center Cursor
2) Corner Mode
3) Page Mode
4) Lazy Mode
5) Locked Mode
6) Define Origin
1) Center Cursor
In this mode, the cursor begins near the center of the display and attempts
to remain there as you scroll through the data. Upon reaching an outside
boundary of the full CRT screen, the display stops advancing while the
cursor moves beyond the center of the screen. When the cursor reaches the
boundary of the CRT screen, an error tone sounds, such as a "beep." The
cursor does not wrap to the next line in the display.
2) Corner Mode
Starts the display at the upper-left corner of the full CRT screen and keeps
the cursor in the lower-right corner of the display. As you scroll, the cursor
remains there as data advances in the scrolled direction (up, down, right,
or left) until an outside boundary of the full CRT screen is reached. Then
the screen stops moving in relation to the display and the cursor moves in
the scrolled direction (the cursor no longer remains in the corner of the
display). When the cursor reaches the CRT screen boundary it stops mo-
ving. The cursor does not wrap to the next line in the display. An error
tone sounds if you try to move the cursor beyond the boundary.
This option is recommended when your application uses only the upper-
left corner of the full CRT screen.
3) Page Mode
Divides the full CRT screen into predefined "pages," and starts the termi-
nal display on page 1. The cursor first appears in the upper-right corner of
the display. As you scroll, only the cursor moves (the data on the screen
does not appear to move). When you scroll off the edge of the displayed
page, the display snaps to the next (or previous) page. Upon reaching the
boundary of the CRT screen, the cursor stops moving and an error tone
sounds each time you attempt to move beyond the boundary.
Some "pages" in 3) Page Mode overlap each other (the same information
is shown on both pages). This overlap occurs because the 24-row by
80-column CRT screen cannot be divided equally.
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Chapter 4 Using the Terminal Emulation Menus
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