如何从上下文菜单中选择子菜单？

Question

我试图使用pywinauto从上下文菜单（发送到）中单击子菜单（BTDecoder）项。

我可以从上下文列表中单击菜单项并单击它。但是，当我尝试点击子菜单时，它没有发生。它显示没有这样的项目。

这是我的代码：

path=os.path.realpath(path) 
os.startfile(path) # open the folder named "FW"
app = pywinauto.Desktop(backend='uia').window(best_match='FW')
win = app.window(title_re='WRT_FW_27_12_2018_11_19_59_000001')
win.click_input(button='left')
win.click_input(button='right') # right click on one file listed there
app1 = pywinauto.Desktop(backend='uia').window(best_match='ContextMenu',top_level_only = True)
win1 = app1.window(title_re="Send to")
win1.click_input()  # click on "Send to" context menu

app.print_control_identifiers()
app2 = pywinauto.Desktop(backend='uia').window(best_match='ContextMenuItem',top_level_only = True)
win2 = app2.window(title_re="BTDecoder")
win2.click_input() # trying to click on sub menu item called "BTDecoder" which not happening.

单击“发送到”上下文菜单后，出现子菜单上下文。在app.print_control_identifiers之后，我能够找到子菜单，如下所示：

Dialog - 'FW'    (L85, T151, R1250, B728)
['FW', 'FWDialog', 'Dialog', 'FW0', 'FW1']
child_window(title="FW", control_type="Window")
   | 
   | Menu - 'Send to'    (L31, T101, R468, B573)
   | ['Menu', 'Send toMenu', 'Send to', 'Menu0', 'Menu1']
   | child_window(title="Send to", control_type="Menu")
   |    | 
   |    | MenuItem - 'Bluetooth device'    (L34, T104, R465, B128)
   |    | ['Bluetooth device', 'MenuItem', 'Bluetooth deviceMenuItem', 'MenuItem0', 'MenuItem1']
   |    | child_window(title="Bluetooth device", auto_id="31011", control_type="MenuItem")
   |    | 
   |    | MenuItem - 'BT Decoder CLI'    (L34, T128, R465, B150)
   |    | ['BT Decoder CLI', 'BT Decoder CLIMenuItem', 'MenuItem2']
   |    | child_window(title="BT Decoder CLI", auto_id="31012", control_type="MenuItem")
   |    | 
   |    | MenuItem - 'BT FW Trace Viewer'    (L34, T150, R465, B172)
   |    | ['BT FW Trace ViewerMenuItem', 'MenuItem3', 'BT FW Trace Viewer']
   |    | child_window(title="BT FW Trace Viewer", auto_id="31013", control_type="MenuItem")
   |    | 
   |    | MenuItem - 'BTDecoder'    (L34, T172, R465, B194)
   |    | ['BTDecoderMenuItem', 'MenuItem4', 'BTDecoder']
   |    | child_window(title="BTDecoder", auto_id="31014", control_type="MenuItem")
   |    | 
   |    | MenuItem - 'Compressed (zipped) folder'    (L34, T194, R465, B216)
   |    | ['Compressed (zipped) folderMenuItem', 'MenuItem5', 'Compressed (zipped) folder']
   |    | child_window(title="Compressed (zipped) folder", auto_id="31015", control_type="MenuItem")
   |    | 
   |    | MenuItem - 'Desktop (create shortcut)'    (L34, T216, R465, B238)
   |    | ['Desktop (create shortcut)', 'Desktop (create shortcut)MenuItem', 'MenuItem6']
   |    | child_window(title="Desktop (create shortcut)", auto_id="31016", control_type="MenuItem")
```````````````````````````````````````````````````

how to click on this sub menu item?

Answer 1

你应该使用backend ='uia'，下面是你需要用来点击上下文菜单的子菜单项的代码

popup_menu = Desktop(backend='uia').window(title="Context")
popup_menu[submenu].click_input()