The TixExFileSelectDialog widget is very similar to the TixFileSelectDialog widget. It supports all the options and widget commands of the latter, so essentially we can just take the program 5-1 and replace the command tixFileSelectDialog in the first line to tixExFileSelectDialog.
The composition of the TixExFileSelectDialog widget is a bit different: it contains one contains one subwidget, which is also called fsbox, of the type TixExFileSelectBox widget (figure 5-3). Again this fsbox widgets supports all widget options and commands of the fsbox subwidget in TixFileSelectDialog, so the line 2 of program 5-1 can work for TixExFileSelectDialog widgets without any change.
