Python - 在當前Windows資源管理器中獲取所選文件的路徑

Question

我正在嘗試在Python 2.7中執行this。我在C＃here中找到了它的答案，但我在Python中重新創建時遇到了問題。答案建議here確實解釋了我理解的概念，但我不知道如何去實現它。

基本上我只想標記一個文件，按下Winkey + C並複製它的路徑。我知道如何做熱鍵部分（pyhk，win32 [RegisterHotKey]），但我的麻煩是解決文件路徑。

在此先感謝！

Answer 1

對不起，但你要達到的目標沒有什麼意義，因爲你可以有多個資源管理器窗口，在其中選擇文件，多個顯示器甚至多個終端會話在同一臺機器上運行。

Answer 2

它需要大量的黑客左右，但粗略的解決方案如下：

#!python3 
import win32gui, time 
from win32con import PAGE_READWRITE, MEM_COMMIT, MEM_RESERVE, MEM_RELEASE, PROCESS_ALL_ACCESS, WM_GETTEXTLENGTH, WM_GETTEXT 
from commctrl import LVM_GETITEMTEXT, LVM_GETITEMCOUNT, LVM_GETNEXTITEM, LVNI_SELECTED 
import os 
import struct 
import ctypes 
import win32api 

GetWindowThreadProcessId = ctypes.windll.user32.GetWindowThreadProcessId 
VirtualAllocEx = ctypes.windll.kernel32.VirtualAllocEx 
VirtualFreeEx = ctypes.windll.kernel32.VirtualFreeEx 
OpenProcess = ctypes.windll.kernel32.OpenProcess 
WriteProcessMemory = ctypes.windll.kernel32.WriteProcessMemory 
ReadProcessMemory = ctypes.windll.kernel32.ReadProcessMemory 
memcpy = ctypes.cdll.msvcrt.memcpy 

def readListViewItems(hwnd, column_index=0): 

    # Allocate virtual memory inside target process 
    pid = ctypes.create_string_buffer(4) 
    p_pid = ctypes.addressof(pid) 
    GetWindowThreadProcessId(hwnd, p_pid) # process owning the given hwnd 
    hProcHnd = OpenProcess(PROCESS_ALL_ACCESS, False, struct.unpack("i",pid)[0]) 
    pLVI = VirtualAllocEx(hProcHnd, 0, 4096, MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE) 
    pBuffer = VirtualAllocEx(hProcHnd, 0, 4096, MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE) 

    # Prepare an LVITEM record and write it to target process memory 
    lvitem_str = struct.pack('iiiiiiiii', *[0,0,column_index,0,0,pBuffer,4096,0,0]) 
    lvitem_buffer = ctypes.create_string_buffer(lvitem_str) 
    copied = ctypes.create_string_buffer(4) 
    p_copied = ctypes.addressof(copied) 
    WriteProcessMemory(hProcHnd, pLVI, ctypes.addressof(lvitem_buffer), ctypes.sizeof(lvitem_buffer), p_copied) 

    # iterate items in the SysListView32 control 
    num_items = win32gui.SendMessage(hwnd, LVM_GETITEMCOUNT) 
    item_texts = [] 
    for item_index in range(num_items): 
     win32gui.SendMessage(hwnd, LVM_GETITEMTEXT, item_index, pLVI) 
     target_buff = ctypes.create_string_buffer(4096) 
     ReadProcessMemory(hProcHnd, pBuffer, ctypes.addressof(target_buff), 4096, p_copied) 
     item_texts.append(target_buff.value) 

    VirtualFreeEx(hProcHnd, pBuffer, 0, MEM_RELEASE) 
    VirtualFreeEx(hProcHnd, pLVI, 0, MEM_RELEASE) 
    win32api.CloseHandle(hProcHnd) 
    return item_texts 

def getSelectedListViewItem(hwnd): 
    return win32gui.SendMessage(hwnd, LVM_GETNEXTITEM, -1, LVNI_SELECTED) 

def getEditText(hwnd): 
# buf_size = 1 + win32gui.SendMessage(hwnd, WM_GETTEXTLENGTH, 0, 0) 
# print(buf_size) 
# buffer = ' ' * buf_size 
# print(win32gui.SendMessage(hwnd, WM_GETTEXT, buf_size, buffer)) 
# return buffer[:buf_size] 

#def getEditText2(hwnd): 
    # api returns 16 bit characters so buffer needs 1 more char for null and twice the num of chars 
    buf_size = (win32gui.SendMessage(hwnd, WM_GETTEXTLENGTH, 0, 0) +1) * 2 
    target_buff = ctypes.create_string_buffer(buf_size) 
    win32gui.SendMessage(hwnd, WM_GETTEXT, buf_size, ctypes.addressof(target_buff)) 
    return target_buff.raw.decode('utf16')[:-1]# remove the null char on the end 

def _normaliseText(controlText): 
    '''Remove '&' characters, and lower case. 
    Useful for matching control text.''' 
    return controlText.lower().replace('&', '') 

def _windowEnumerationHandler(hwnd, resultList): 
    '''Pass to win32gui.EnumWindows() to generate list of window handle, 
    window text, window class tuples.''' 
    resultList.append((hwnd, win32gui.GetWindowText(hwnd), win32gui.GetClassName(hwnd))) 

def searchChildWindows(currentHwnd, 
       wantedText=None, 
       wantedClass=None, 
       selectionFunction=None): 
    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 

w=win32gui 

while True: 
    time.sleep(5) 
    window = w.GetForegroundWindow() 
    print("window: %s" % window) 
    if (window != 0): 
     if (w.GetClassName(window) == 'CabinetWClass'): # the main explorer window 
      print("class: %s" % w.GetClassName(window)) 
      print("text: %s " %w.GetWindowText(window)) 
      children = list(set(searchChildWindows(window))) 
      addr_edit = None 
      file_view = None 
      for child in children: 
       if (w.GetClassName(child) == 'ComboBoxEx32'): # the address bar 
        addr_children = list(set(searchChildWindows(child))) 
        for addr_child in addr_children: 
         if (w.GetClassName(addr_child) == 'Edit'): 
          addr_edit = addr_child 
        pass 
       elif (w.GetClassName(child) == 'SysListView32'): # the list control within the window that shows the files 
        file_view = child 
      if addr_edit: 
       path = getEditText(addr_edit) 
      else: 
       print('something went wrong - no address bar found') 
       path = '' 

      if file_view: 
       files = [item.decode('utf8') for item in readListViewItems(file_view)] 
       index = getSelectedListViewItem(file_view) 
       selected_file = files[index] 
       print('files: %s' % files) 
       print('selected file: %s' % selected_file) 
       print('path: %s' % path) 
       print('file path: %s' % os.path.join(path, selected_file)) 
      else: 
       print('something went wrong - no file view found') 

所以這樣做是繼續檢查，如果該活動窗口的瀏覽器窗口使用類的，然後通過迭代兒童小部件可以找到地址欄和文件列表視圖。當它從列表中提取文件列表並請求選定的索引時。它也獲取並解碼地址欄中的文本。
在底部，然後將信息組合起來，爲您提供完整路徑，文件夾路徑，文件名或其任意組合。

我已經用python3.4在windows xp上測試過了，但是你需要安裝win32gui和win32 conn包。