# Control Object Properties

ScrollWheel | Set Scroll Wheel Increment

## Description

Set scroll wheel increment

This property is used to define how many lines each click of the scroll wheel will move a list box or grid.

Possible values are:

| 0 | Scroll wheel support (all events go to parent window).
| 1 | Scroll only if the control has focus (mouse can hover on or off control).
| 2 | Scroll only if the control has focus (mouse must be hovered over control).
| 3 | If control does not have focus, then scroll when mouse hovers over this control (otherwise, same as 1).
| 4 | If control does not have focus, then scroll when mouse hovers over this control (otherwise, same as 2).

## Used By

DROP_BOX • GRID • H_SCROLLBAR • LIST_BOX • LIST_VIEW • MULTI_LINE • REPORT_VIEW • TREE_VIEW • VARDROP_BOX • VARLIST_BOX • V_SCROLLBAR