FileFilter.this

Creates a new [gtk.file_filter.FileFilter] with no rules added to it.

Such a filter doesn’t accept any files, so is not particularly useful until you add rules with [gtk.file_filter.FileFilter.addMimeType], [gtk.file_filter.FileFilter.addPattern], [gtk.file_filter.FileFilter.addSuffix] or [gtk.file_filter.FileFilter.addPixbufFormats].

To create a filter that accepts any file, use:

GtkFileFilter *filter = gtk_file_filter_new ();
gtk_file_filter_add_pattern (filter, "*");