Diver++ is a little system utility, MDI program, that allow you do some usable things, you need in working/testing process. Can do: send messages, search window by mouse moving, by handle, change state of window, change position, z-order, parent of window, cnange style, extended style of window, show windows hierarchy, change window font, change window opaque, kill/hide/show menu, enable/disable, check/uncheck all items.