FS functions.
Gets a user-selected file path. Note: call after run() only.
Sets the background title for dialog widgets.
Returns current background title.
It is possible to assign callbacks to events such as pressing OK (or YES), NO (or CANCEL), ESC. ESC is always available.
Changes a box text.
Execution launch.
FSelect displays a text-entry window in which you can type a filename (or directory), and above that two windows with directory names and filenames (description taken from man dialog, the --fselect section). Mixins: Uses mixin-template $(DIALOG_REF2 FileSystemBox)!"fselect".