Updating a ComboBox

["Mike Martin" <redtux1 googlemail com>]

Does anyone know if it is possible to update the contents of a combobox?

I have the following

a combolist which is generated from a array read in from a file ie:

OPEN(FILE,$file)
my @arr=<FILE>
foreach my $file (@arr){
append_text($file)
}

which all works

however I have another function which updates the file and I cant work
out how to pass the changes to the combobox.

Any ideas appreciated