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Display Control
This key is disabled when a configuration menu or the User Key menu is displayed. If the
•
key is pressed in Memory Lock mode, any text preceding the locked text will be scrolled
down, a line at a time, and inserted between the locked text and the first line following the
locked text.
To perform this function programmatically, use the following escape sequence:
Ec T
Next Page/Previous Page
Data in the active workspace can be accessed (displayed on the screen) in blocks that are
known as CCpages". A page is a sequence of lines of data, the number of which is equal to the
number of lines that can be displayed at one time in the active window. For example, if the
active window is 24 lines long, then a page of display memory is 24 lines of data. The current
page is that sequence of lines which appears in the window (24, in this example). The next
page is that sequence of lines which follows the current page in the associated workspace (the
next 24 lines, in this example) while the previous page is that sequence which precedes the
current page in the workspace (the previous 24 lines, in this example).
When Memory Lock is enabled, the page size is equal to the number ofccunlocked" lines in the
cursor active window.
The concept of display CCpages" is illustrated in figure 4-2.
Workspace
Figure 4-2. Previous Page and Next Page Concepts
4-10
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