[ Version ( deprecated = true , deprecated_since = "3.20" , since = "2.4" ) ]
public void set_spacing (int spacing)
Warning: set_spacing is deprecated since 3.20.
Sets the spacing field of this, which is the number of pixels to place between expander and the child.
Use margins on the child instead.
| this |
a Expander |
| spacing |
distance between the expander and child in pixels |