attributes.event_mask = gtk_widget_get_events (widget)
| GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK
| GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK
- | GDK_BUTTON_MOTION_MASK;
+ | GDK_BUTTON_MOTION_MASK
+ | GDK_SCROLL_MASK | GDK_SMOOTH_SCROLL_MASK
+ | GDK_TOUCH_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
window = gdk_window_new (gtk_widget_get_parent_window (widget),