# AG\_SCROLLBACK

> [HTML Version](ag_scrollback.htm)

_Reviewed and revised December 2023_

**tab(-10, AG\_SCROLLBACK); opcode; chr(127);**     [Tab(-10,x) Syntax Notes](ag_xxx_syntax-notes.htm.md)

AG\_SCROLLBACK (109) hides, shows, or toggles the visibility of the vertical scrollback bar.

**Parameters**

_opcode_

| **Value** | **Description\*** |
|------|------|
| 0 or omitted | disable/hide the vertical scroll bar |
| 1 | enable/show it |
| \-1 | toggle its visibility |




**Response**:

none