In general, no. You would typically take your widget, create it, and put it into a widget-agnostic container or layout manager. The widget wouldn't know about i

In general, no. You would typically take your widget, create it, and put it into a widget-agnostic container or layout manager. The widget wouldn't know about it's parent or children. The widgets would communicate by sending signals which bubbled up or down the container heirarchy, triggering repaints, resizes, and so on as needed. Of course, this varied by toolkit.