Linux and GTK: GtkFileSelection vs. GtkFileChooserDialog

In GTK, the GtkFileSelection (via gtk_file_selection_new) and the GtkFileChooserDialog (via gtk_file_chooser_dialog_new) look like they're intended for the same purpose but with different appearances.

Is there any reason I should prefer one o开发者_Python百科ver the other or is it just a matter of picking the one that is most visually appealing?

GtkFileSelection is deprecated in the current stable version. You should use GtkFileChooserDialog.