A.4 Listbox (Advanced Perl Programming)

A.4 Listbox

Let us take a look at the indexing syntax before we examine Table A.8 , which details listbox properties and methods:

number: The index of the row, starting from 0.
end: Indicates the end of the row.
active: Where the location cursor is currently poised. The active location appears underlined.
anchor: The anchor point of the selection.

Table A.8: Listbox Widget Properties and Methods
Properties	Description
height, width	Height in lines and width in characters. If 0, the widget resizes to accommodate all elements.
selectMode	One of `single` , `browse` , `multiple` , or `extended` .
Methods
get (index)	Get the entire string.
insert (index, string)	Inserts a string at the index.
delete (index, [last])	Deletes at index or within range.
index (index)	Return the numerical index.
see (index)	Bring the index 'th element within view.
selectionFrom (index) selectionTo (index) selection (from,to) selectionClear ( )	Set or adjust the selection.
selectionPresent ()	True if there's a selection.
curselection( )	A list of indices of the elements that have been selected.