Gets the #GFile that should be previewed in a custom preview Internal function, see gtk_file_chooser_get_preview_uri().
the #GFile for the file to preview, or %NULL if no file is selected. Free with g_object_unref().
2.14
See Implementation
Gets the #GFile that should be previewed in a custom preview Internal function, see gtk_file_chooser_get_preview_uri().