Graphics Display Control; Graphics Cursor Control - HP 262SA Reference Manual

Dual-system display terminal and word-processing terminal
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Graphics
GRAPHICS DISPLAY CONTROL
Graphics display control is made up of the functions used to control the graphics cursor, the
portion of the graphics memory that is currently being displayed, or the state of the graphics
memory. These functions are as follows:
• Graphics Cursor Control
• Graphics Memory Control
Table D-3 lists the escape sequences for the graphics display control functions.
Table D-3. Graphics Display Control Functions
FUNCTION
CODE
DESCRIPTION
Graphics Cursor Control
Cursor On
Ec*dk
Turn on the graphics cursor.
Cursor Off
Ec*dl
Turn off the graphics cursor.
Move Absolute
Ec*d<x,y>Q
Position the graphics cursor.
Move Relative
Ec*d<x,y>p
Position the graphics cursor.
Graphics Memory Control
Clear Memory
Ec*da
Turn off all dots in graphics
memory.
Set Memory
Ec*db
Turn on all dots in graphics
memory.
Display On
Ec*dc
Enable the graphics display.
Display Off
Ec*dd
Inhibit the graphics display.
Graphics Cursor Control
A separate graphics cursor is available for use in locating points in the graphics display. The
graphics cursor is used by the terminal operator to input position data or to interact with a
graphics application program.
GRAPHICS CURSOR ON/OFF.
The graphics cursor is initially off (power on or full reset).
Turning the cursor on or off does not affect the data in graphics memory.
The graphics cursor may be toggled on and off by pressing the G.
CURSOR
key on the
graphics/numeric pad.
Programmatically, you can toggle the cursor:
Graphics Cursor On:
Graphics Cursor Off:
D-7

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