HbListBox() > Methods

:select( [<nItemPos>] ) --> nCurrentItemPos

oHbListBox:scroll()

Scrolls items in the list box.

Syntax

:scroll( <nMode> ) --> self

Arguments

<nMode>

This is a numeric value indicating how to scroll the list box. It is usually the return value of the :hitTest() method when a list box is displayed with a vertical scroll bar. The following #define constants from the Button.ch file can be used for <nMode>:

Constants for the :scroll() method

Constant Value Description

HTSCROLLUNITDEC -3074 Scroll down one line

HTSCROLLUNITINC -3075 Scroll up one line

HTSCROLLBLOCKDEC -3076 Scroll down one page

HTSCROLLBLOCKINC -3077 Scroll up one page

Constant	Value	Description
HTSCROLLUNITDEC	-3074	Scroll down one line
HTSCROLLUNITINC	-3075	Scroll up one line
HTSCROLLBLOCKDEC	-3076	Scroll down one page
HTSCROLLBLOCKINC	-3077	Scroll up one page

Description

Method :scroll() scrolls the items visible in the list box window up or down by one line or an entire page. This is usually done in response to a scroll bar being clicked with the mouse when the list box is displayed with a vertical scroll bar.