The drag_begin signal is emitted when the DragAction starts the dragging
The emission of this signal can be delayed by using the x_drag_threshold and y_drag_threshold properties
| actor |
the Actor attached to the action |
| event_x |
the X coordinate (in stage space) of the press event |
| event_y |
the Y coordinate (in stage space) of the press event |
| modifiers |
the modifiers of the press event |