thumbSize

Specifies how large a scrollbar draggable scrollbar thumb is.

# Metadata

Platforms: desktop, server, mobile OS: mac, windows, linux, ios, android Introduced: 1.0 Security:

# Syntax

set the thumbSize of scrollbar to number

# Examples

set the thumbSize of scrollbar "Contents Group" to 500

set the thumbSize of scrollbar 1 to \ (the height of group "Main"/the formattedHeight of group "Main")

# Description

Use the thumbSize property to specify the size of a scrollbar draggable scrollbar thumb.

Normally, the thumbSize is proportional to the proportion of content visible on the screen. For example, if a third of the content can be seen and the rest is always scrolled off, the scrollbar thumb should cover a third of the scrollbar area, so the number should be one-third of the difference between the scrollbar startValue and its endValue.

If the proportionalThumbs property is set to false, this property has no effect.

# Tags

ui,

# See

- **property:** thumbPosition, endValue, formattedHeight, proportionalThumbs, startValue, formattedWidth - **glossary:** scrollbar thumb, property - **object:** scrollbar