This special property sets the lowest value of the range of legal scroll bar values. The default value is "0" (zero).
This property sets the highest value of the range of legal scroll bar values. The default value is 100. MAX-VAL may not be greater than 65536. Setting a larger range has an undefined effect. See PAGE-SIZE below for additional information.
This property describes the number of elements that appear on a "page" of data. For example, if you scroll through a series of lines and 20 lines fit in the window, then the page size is 20. With a 32-bit runtime, this property determines the size of the slider relative to the scroll bar. If PAGE-SIZE is set to 0 (the default), then the system uses a default slider size. PAGE-SIZE also reduces the range of values that the scroll bar can take. The effective range is MIN-VAL to MAX-VAL minus PAGE-SIZE.