PageSize Property
Applies To: Form, Scroll, SubForm
Description
For a Form and SubForm, the PageSize property is a 2-element integer vector which specifies the size of the thumb in the vertical and horizontal scrollbars respectively.
For a Scroll object it is a single integer.
If PageSize is 0 (the default) it specifies the default thumb. Otherwise, PageSize is expressed in proportion to the corresponding value of Range. For example, if Range is 1000, setting PageSize to 100 will obtain a thumb which is approximately 10% of the height or length of the scrollbar.