What is the fastest way to copy from text file and paste into QListWidget?

[umen242]

hello all
i have QListWidget that load from file strings , each string in the file converted to item in the QListWidget.
now i need to be able copy from text numbers of line to clipbord and paste them into the QListWidget
and it will add items into the QListWidget .
how can i do the copy / paste function is there any tutorial or example that show this kind of action ?
thanks