WndNoTopMost Repositions the window to the top of all nontopmost windows (that is, behind all topmost windows). This flag has no effect if the window is already a nontopmost window.

• 将窗口重新定位到所有非顶层窗口的顶部(这意味着在所有的顶层窗口之下)。这个标志对那些已经是非顶层窗口的窗口没有作用。