By default there is no icon provider and this function returns 0. Reimplemented from QWidget. Re-reads the active directory in the file dialog. It is seldom necessary to call this function. It is provided in case the directory contents change and you want to refresh the directory list box.
Handles resize events for the file dialog.
Reimplemented from QWidget. If a file name was selected, the returned string contains the absolute path name. The returned string is a null string if no file name was selected. This is an overloaded member function, provided for convenience. See the license file included in the distribution for a complete license statement.