DECLRMM—Left Right Margin Mode

This control function defines whether or not the set left and right margins (DECSLRM) control function can set margins.

Available in: VT Level 4 mode only.
Default: DECSLRM cannot set margins.

Format

CSI
9/11
?
3/15
6
3/6
9
3/9
h
6/8
Set: DECSLRM can set margins.
CSI
9/11
?
3/15
6
3/6
9
3/9
l
6/12
Reset: DECSLRM cannot set margins.

Description

When DECLRMM is set, DECSLRM can set the left and right margins. All line attributes currently in page memory for the session are set to single width, single height. The terminal ignores any sequences to change the line attributes to double width or double height (DECDWL or DECDHL).

When DECLRMM is reset, DECSLRM cannot set the left and right margins. The margins are set to the page borders for every page. The terminal can process sequences to change the line attributes to double width or double height (DECDWL or DECDHL).