This function will search siblings of base_widget and siblings of its
ancestors for all widgets matching widget_type.
Of the matching widgets, the one that is geometrically closest to
base_widget will be returned.
The general purpose of this function is to find the most likely "action"
widget, relative to another labeling widget. Such as finding a
button or text entry widget, given its corresponding label widget.
Since 2.14
This function will search siblings of base_widget and siblings of its ancestors for all widgets matching widget_type. Of the matching widgets, the one that is geometrically closest to base_widget will be returned. The general purpose of this function is to find the most likely "action" widget, relative to another labeling widget. Such as finding a button or text entry widget, given its corresponding label widget. Since 2.14