gtk4_sys

Function gtk_font_dialog_choose_font

Source 
pub unsafe extern "C" fn gtk_font_dialog_choose_font(
    self_: *mut GtkFontDialog,
    parent: *mut GtkWindow,
    initial_value: *mut PangoFontDescription,
    cancellable: *mut GCancellable,
    callback: GAsyncReadyCallback,
    user_data: gpointer,
)
Available on crate feature v4_10 only.