DECSTBM—Set Top and Bottom Margins

This control function sets the top and bottom margins for the current page. You cannot perform scrolling outside the margins.

Default: Margins are at the page limits.

Format

CSI 9/11

Pt 3/n

; 3/11

Pb 3/n

r 7/2

Parameters

Pt
is the line number for the top margin.
Default: Pt = 1.

Pb
is the line number for the bottom margin.
Default: Pb = current number of lines per screen.

Notes on DECSTBM

• The value of the top margin (Pt) must be less than the bottom margin (Pb).
• The maximum size of the scrolling region is the page size.
• DECSTBM moves the cursor to column 1, line 1 of the page.