GUIPropView

GUIPropView displays extensive information about all windows currently open on your system. The top panel of GUIPropView displays all top-level windows, and when you select a window in the top panel, the bottom panel displays a list of all child windows of the selected top-level window. You can also select one or more windows and then perform any of the actions such as close, hide, display, minimize, maximize, disable, enable, and so on ...