| Value | Meaning |
|---|---|
| STEP_FORWARD0 | Increment by the adjustments step increment. |
| STEP_BACKWARD1 | Decrement by the adjustments step increment. |
| PAGE_FORWARD2 | Increment by the adjustments page increment. |
| PAGE_BACKWARD3 | Decrement by the adjustments page increment. |
| HOME4 | Go to the adjustments lower bound. |
| END5 | Go to the adjustments upper bound. |
| USER_DEFINED6 | Change by a specified amount. |
The values of the GtkSpinType enumeration are used to specify the change to make in SpinButton.spin.