Emitted when a button in the 4 to 7 range is pressed.
Wheel mice are usually configured to generate button press events for buttons 4 and 5 when the wheel is turned in an item.
| event |
the event data. The x & y fields contain the mouse position in the item's coordinate space. The x_root & y_root fields contain the same coordinates converted to the canvas coordinate space. |
| target_item |
the target of the event. |
|
true to stop the signal emission, or false to let it continue. |