Inserts a row or column at the specified position.
The new row or column is placed next to sibling
, on the side determined by side
. If side
is
gtk_pos_top or gtk_pos_bottom, a row is inserted. If side
is gtk_pos_left of gtk_pos_right, a column is inserted.
this |
a `GtkGrid` |
sibling |
the child of this that the new row or column will be placed next to |
side |
the side of |