Clear Line; Setting And Clearing Margins - HP 262SA Reference Manual

Dual-system display terminal and word-processing terminal
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Display Control
When Format mode is on, pressing the
lIB
key deletes all unprotected displaying and non-
displaying characters (except protected video enhancement escape sequences) from the cur-
rent cursor position through the end of the workspace.
This key is disabled in the User Key and configuration menus.
To perform this function programmatically, use the following escape sequence:
Ec
J
Clear Line
When Format mode is off, pressing the. key deletes all displaying and non-displaying
characters from the current cursor position through the end of the current line.
When Format mode is on and the cursor is positioned within an unprotected field, pressing
the. key deletes all displaying and non-displaying characters (except video enhancement
escape sequences) from the current cursor position through the end of the current field. If the
cursor is not within an unprotected field, the. key has no effect.
In the User Key menu and any configuration menu, clear line acts the same as for unpro-
tected and transmit-only fields in Format mode.
To perform this function programmatically, use the following escape sequence:
Ec K
SETTING AND CLEARING MARGINS
You can redefine the left and/or right margin. These margins affect the cursor positioning for
certain functions (such as carriage return, home up, home down, etc.) and establish opera-
tional bounds for the insert character and delete character functions. In addition, the left
margin is always an implicit tab stop. Data to the left of the left margin or to the right of the
right margin is still accessible. Data transfers from the workspace to a host computer or to a
printer are performed without regard to margins. Format mode, when enabled, also operates
without regard to margins.
When you are entering data through the keyboard and the cursor reaches the right margin, it
automatically moves to the left margin in the next lower line (note that this operating
characteristic can be disabled through the use of the
InhEolWrp
terminal configuration
parameter; refer to Section 3). When you press
1:1,
the cursor moves to the left margin in the
current line if Auto Line Feed mode is disabled or to the left margin in the next lower line if
Auto Line Feed mode is enabled.
When data is being received from a host computer, it enters display memory only within the
defined margins. When the cursor reaches the right margin, it automatically moves to the
left margin in the next lower line (as mentioned above, this operating characteristic can be
disabled through the use of the
InhEolWrp
configuration parameter). When an ASCII
<CR>
control code is received, the cursor always moves to the left margin in the current line
regardless of whether or not Auto Line Feed mode is enabled.
4-19

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