Letting a Window believe it is still in focus although it is not
问题 I have to deal with a nasty MS Windows application that quits doing its job as soon as it loses focus. My question is, how can I trick this application somehow to believe that it is still in focus, although it really is not? My thoughts are: Is it possible to suppress the corresponding "WM" message from just this application? Can I send a fake message to this window that it acts like it is in focus? 回答1: Sending the WM_ACTIVATE message works for some apps: SendMessage(hWnd, WM_ACTIVATE, WA