636
'SB' Mnemonic
Set Mode to Background
Description
Use 'SB' to set background mode. (Characters are displayed at low intensity /
dimmed.) To clear background mode, use the 'CF' Mnemonic, p.593. (See also: 'SF'
'SCROLL' Mnemonic
Define/Control Scroll Region
Format
1. Define Region: 'SCROLL'(col,ln,wth,ht)
Long or short forms:
2. Start / Enable Scrolling: 'SCROLL'("ON") or 'SE'
3. Reset to Full Window: 'SCROLL'("RESET") or 'SR'
4. Disable Scrolling: 'SCROLL'("OFF") or 'SD'
Where:
@(col,ln,
Position / coordinates. Numeric expressions. Column and line
wth,ht)
coordinates for top left corner, width in number of columns and
height in number of lines.
Description
Use 'SCROLL' to define or change the scroll region in the screen / window. All subsequent
mnemonics for cursor position, clearing, deletion and insertion will only affect this
defined area.
If the cursor advances beyond the last line: when 'SCROLL' is ON, ProvideX moves all the
lines on the screen up one line; when 'SCROLL' is OFF, ProvideX returns the cursor to the
first column in the first line. Use 'SE' or 'SD' to enable or disable the scroll region. Use 'SR'
or 'SCROLL'("RESET") to reset the scroll region to the full window / screen. For a
window with a border, the border is included in the scroll region.
Note: The values ON, OFF and RESET can be literals, variables or string expressions.
'SE' & 'SD' Mnemonics
Scroll Enable/Disable
Description