7.5.1. Style of Selected Items

Figure 7-4. Example of -selectborderwidth => 4

Listbox Indexes The items in a Listbox widget are ordered. The first Listbox item is at index 0, and the numbers increment by 1. These values are valid for any of the methods that require index values. They are as follows: n An integer index. The first item in a Listbox is at index 0. "active" The index within the Listbox that has the location cursor. If the Listbox has the keyboard focus, it will be displayed with an underline. "anchor" This index is set with the selectionAnchor(...) method. "end" The end of the Listbox. Depending on which method is using this index, it could mean just after the last element (such as when insert is used), or it could mean the last element in the Listbox (such as when delete is used). "@x,y" The Listbox item that covers the point at the coordinate (x, y) (pixel coordinates). The closest item will be used if (x, y) is not at a specific item.

7.5.2. Special Listbox Resizing