Gets the child in the (@x, @y) position.
Both @x and @y are assumed to be relative to the origin of @box.
the x coordinate of the child
the y coordinate of the child
the child widget, which will always be a GtkFlowBoxChild or %NULL in case no child widget exists for the given x and y coordinates.
See Implementation
Gets the child in the (@x, @y) position.
Both @x and @y are assumed to be relative to the origin of @box.