Python win32gui.EnumChildWindows() Examples

def enumCallback(hwnd, self):
            title = win32gui.GetWindowText(hwnd)

            for name in self.WindowNames:
                if title.find(name) > -1:
                    try:
                        self.FoundWindowEvent.set()

                        if self.CloseWindows:
                            win32gui.PostMessage(hwnd, win32con.WM_CLOSE, 0, 0)
                    except:
                        pass
                else:
                    try:
                        win32gui.EnumChildWindows(hwnd, _WindowWatcher.enumChildCallback, self)
                    except:
                        pass

            return True 

def dumpWindows(hwnd):
    '''Dump all controls from a window
    
    Useful during development, allowing to you discover the structure of the
    contents of a window, showing the text and class of all contained controls.

    Parameters
    ----------
    hwnd
        The window handle of the top level window to dump.

    Returns
    -------
        all windows

    Usage example::
        
        replaceDialog = findTopWindow(wantedText='Replace')
        pprint.pprint(dumpWindow(replaceDialog))
    '''
    windows = []
    win32gui.EnumChildWindows(hwnd, _windowEnumerationHandler, windows)
    return windows 

def enumCallback(hwnd, args):
            """
            Will get called by win32gui.EnumWindows, once for each
            top level application window.
            """

            proc = args[0]
            windowName = args[1]

            try:
                # Get window title
                title = win32gui.GetWindowText(hwnd)

                # Is this our guy?
                if title.find(windowName) == -1:
                    win32gui.EnumChildWindows(hwnd, FileWriterLauncherGui.enumChildCallback, args)
                    return

                # Send WM_CLOSE message
                win32gui.PostMessage(hwnd, win32con.WM_CLOSE, 0, 0)
            except:
                pass 

def enumCallback(hwnd, windowName):
            """
            Will get called by win32gui.EnumWindows, once for each
            top level application window.
            """

            try:
                # Get window title
                title = win32gui.GetWindowText(hwnd)

                # Is this our guy?
                if title.find(windowName) == -1:
                    win32gui.EnumChildWindows(hwnd, FileWriterLauncherGui.enumChildCallback, windowName)
                    return

                # Send WM_CLOSE message
                win32gui.PostMessage(hwnd, win32con.WM_CLOSE, 0, 0)
            except:
                pass 

def attach(self, device):
        if self.device is not None:
            print "Warning: already attached to a device."
            if device is not self.device:
                self.detach()

        handle = device.hwnd
        def callback(hwnd, extra):
            extra.add(hwnd)
            return True
        self.watched_hwnds.add(handle)
        try:
            # EnumChildWindows may crash for windows have no any child.
            # refs: https://mail.python.org/pipermail/python-win32/2005-March/003042.html
            win32gui.EnumChildWindows(handle, callback, self.watched_hwnds)
        except pywintypes.error:
            pass

        self.device = device
        print "attach to device", device 

def foreach_window(self):
        def callback(hwnd, lparam):
            title = win32gui.GetWindowText(hwnd).lower()

            for window in self.to_close:
                if window in title:
                    win32gui.PostMessage(hwnd, win32con.WM_CLOSE, 0, 0)
                    print "Closed window ({})".format(title)

            for window in self.clicks:
                if window in title:
                    self._windows[hwnd] = {
                        "matches": self.clicks[window],
                        "to_click": [],
                        "buttons": []
                    }
                    try:
                        win32gui.EnumChildWindows(hwnd, self.foreach_child(), hwnd)
                    except:
                        print "EnumChildWindows failed, moving on."

                    for button_toclick in self._windows[hwnd]['to_click']:
                        for button in self._windows[hwnd]['buttons']:
                            if button_toclick in button['text']:
                                win32gui.SetForegroundWindow(button['handle'])
                                win32gui.SendMessage(button['handle'], win32con.BM_CLICK, 0, 0)
                                print "Clicked on button ({} / {})".format(title, button['text'])

                    del self._windows[hwnd]

            return True

        return callback 

def findSpecifiedWindows(top_hwnd, numChildWindows=70):
    '''
    查找某一窗口下指定数量的子窗口
    :param top_hwnd: 主窗口句柄
    :param numChildWindows: 子窗口数量
    :return:子窗口列表，包括子窗口hwnd, title, className
    '''
    windows = []
    try:
        win32gui.EnumChildWindows(top_hwnd, _windowEnumerationHandler, windows)
    except win32gui.error:
        # No child windows
        return
    for window in windows:
        childHwnd, windowText, windowClass = window
        windowContent = dumpSpecifiedWindow(childHwnd)
        if len(windowContent) == numChildWindows:
            return windowContent
    # 没有指定数量的句柄
    return 

def dumpWindows(hwnd):
    """Dump all controls from a window

    Useful during development, allowing to you discover the structure of the
    contents of a window, showing the text and class of all contained controls.

    Parameters
    ----------
    hwnd
        The window handle of the top level window to dump.

    Returns
    -------
        all windows

    Usage example::

        replaceDialog = findTopWindow(wantedText='Replace')
        pprint.pprint(dumpWindow(replaceDialog))
    """
    windows = []
    win32gui.EnumChildWindows(hwnd, _windowEnumerationHandler, windows)
    return windows 

def enumCallback(hwnd, windowName):
            """
            Will get called by win32gui.EnumWindows, once for each
            top level application window.
            """

            try:
                # Get window title
                title = win32gui.GetWindowText(hwnd)

                # Is this our guy?
                if title.find(windowName) == -1:
                    win32gui.EnumChildWindows(hwnd, FileWriterLauncherGui.enumChildCallback, windowName)
                    return

                # Send WM_CLOSE message
                win32gui.PostMessage(hwnd, win32con.WM_CLOSE, 0, 0)
            except:
                pass 

def dumpWindow(hwnd):
    '''Dump all controls from a window into a nested list
    
    Useful during development, allowing to you discover the structure of the
    contents of a window, showing the text and class of all contained controls.

    Parameters
    ----------
    hwnd
        The window handle of the top level window to dump.

    Returns
    -------
    A nested list of controls. Each entry consists of the
    control's hwnd, its text, its class, and its sub-controls, if any.

    Usage example::
        
        replaceDialog = findTopWindow(wantedText='Replace')
        pprint.pprint(dumpWindow(replaceDialog))
    '''
    windows = []
    try:
        win32gui.EnumChildWindows(hwnd, _windowEnumerationHandler, windows)
    except win32gui.error:
        # No child windows
        return
    windows = [list(window) for window in windows]
    for window in windows:
        childHwnd, windowText, windowClass = window
        window_content = dumpWindow(childHwnd)
        if window_content:
            window.append(window_content)
    return windows 

def dumpWindow(hwnd):
    '''Dump all controls from a window into a nested list
    
    Useful during development, allowing to you discover the structure of the
    contents of a window, showing the text and class of all contained controls.

    Parameters
    ----------
    hwnd
        The window handle of the top level window to dump.

    Returns
    -------
    A nested list of controls. Each entry consists of the
    control's hwnd, its text, its class, and its sub-controls, if any.

    Usage example::
        
        replaceDialog = findTopWindow(wantedText='Replace')
        pprint.pprint(dumpWindow(replaceDialog))
    '''
    windows = []
    try:
        win32gui.EnumChildWindows(hwnd, _windowEnumerationHandler, windows)
    except win32gui.error:
        # No child windows
        return
    windows = [list(window) for window in windows]
    for window in windows:
        childHwnd, windowText, windowClass = window
        window_content = dumpWindow(childHwnd)
        if window_content:
            window.append(window_content)
    return windows 

def findWindow(name='',C='',parent=0):
    R=[]
    def callbck(hwnd, lParam):
        title,c = getInfo(hwnd)
        if (name=='' or title.startswith(name)) and (C=='' or c==C):
            R.append(hwnd)
        return True
    user32.EnumChildWindows(parent,WNDENUMPROC(callbck),42)        
    return R 

def findControls(topHwnd,
                 wantedText=None,
                 wantedClass=None,
                 selectionFunction=None):
    
    def searchChildWindows(currentHwnd):
        results = []
        childWindows = []
        try:
            win32gui.EnumChildWindows(currentHwnd,
                                      _windowEnumerationHandler,
                                      childWindows)
        except win32gui.error:
            # This seems to mean that the control *cannot* have child windows,
            # i.e. not a container.
            return
        for childHwnd, windowText, windowClass in childWindows:
            descendentMatchingHwnds = searchChildWindows(childHwnd)
            if descendentMatchingHwnds:
                results += descendentMatchingHwnds

            if wantedText and \
               not _normaliseText(wantedText) in _normaliseText(windowText):
                continue
            if wantedClass and \
               not windowClass == wantedClass:
                continue
            if selectionFunction and \
               not selectionFunction(childHwnd):
                continue
            results.append(childHwnd)
        return results

    return searchChildWindows(topHwnd)