WindowHandlers.py 文件源码

def get_hwnd_by_title_class(self, class_text = None, title_text= None, parent_title = None,parent_class = None):

        """ Returns a windows window_handler

        Args:
            title_text (string): the title of the window we are looking for
            SPECIAL CASE: if "desktop:n" is given, a handle to the desktop number n handle is given

        Returns:
            int: the handler for the window if found

        Raises:
            win32.error: If the windowtitle is invalid

        """

        if 'desktop:' in title_text.lower():
            _ , num = title_text.lower().split(':',1)
            num = int(num)
            monitors = win32api.EnumDisplayMonitors()
            tar_mon = monitors[num]
            self.hwnd = tar_mon[1]
            return self.hwnd

        if title_text.lower() == "desktop":
            self.hwnd = win32gui.GetDesktopWindow()
            return self.hwnd

        child_hwnd = []
        def child_enumerator(hwnd,param):
            child_hwnd.append(hwnd)
            return True

        if parent_title is not None or parent_class is not None:
            logging.debug("Where supplied title/class: {0}/{1}".format(str(title_text), str(class_text)))
            parent_hwnd = self.get_hwnd_by_title_class(class_text=parent_class,title_text=parent_title)
            win32gui.EnumChildWindows(parent_hwnd,child_enumerator,None)

            for hwnd in child_hwnd:
                hwnd_title = win32gui.GetWindowText(hwnd)
                hwnd_class = win32gui.GetClassName(hwnd)
                if (hwnd_title == title_text and title_text is not None) or \
                    (hwnd_class == class_text and class_text is not None):
                    self.hwnd = hwnd
                    return hwnd

            # logging.debug("Found parent with title/class {0}{1} at {2}".format(parent_title,parent_class,parent_hwnd))
            # self.hwnd = win32gui.FindWindowEx(parent_hwnd,0,class_text,title_text)
        else:
            logging.debug("Where supplied title/class: {0}/{1}".format(str(title_text), str(class_text)))
            self.hwnd = win32gui.FindWindow(class_text, title_text)


        if self.hwnd == 0:
            raise ValueError('Unable to find a window with that title or class')

        logging.debug("Found window 0x{:2X}".format(self.hwnd))
        return self.hwnd