The scroll-child signal is emitted when the child widget is being scrolled by a keyboard action. The default key bindings with resulting scrolltype and horizontal arguments are:
| Control+Left Arrow | Gtk::SCROLL_STEP_BACKWARD (horizontal) |
| Control+Right Arrow | Gtk::SCROLL_STEP_FORWARD (horizontal) |
| Control+Up Arrow | Gtk::SCROLL_STEP_BACKWARD (vertical) |
| Control+Down Arrow | Gtk::SCROLL_STEP_FORWARD (vertical) |
| Control+Page Up | Gtk::SCROLL_PAGE_BACKWARD (horizontal) |
| Control+Page Down | Gtk::SCROLL_PAGE_FORWARD (horizontal) |
| Page Up | Gtk::SCROLL_PAGE_BACKWARD (vertical) |
| Page Down | Gtk::SCROLL_PAGE_FORWARD (vertical) |
| Control+Home | Gtk::SCROLL_START (horizontal) |
| Control+End | Gtk::SCROLL_END (horizontal) |
| Home | Gtk::SCROLL_START (vertical) |
| End | Gtk::SCROLL_END (vertical) |
Callback function