Hi All,
To explain things bit more clearly, I'm trying to add my own menu item to
the context menu that appears for files and folders. When I was searching
about how to achieve it in Python, I found this example provided with
pywin32 under folder "
*python36-32\Lib\site-packages\win32comext\shell\demos\servers\context_menu.py".
*
When I run the program, I could see that the entries are added into the
registry correctly under "Python.File>shellex>ContextMenuHandlers". But the
menu item is not showing up in explorer.
However if I add any entry manually like the way mentioned here
<https://www.howtogeek.com/howto/windows-vista/add-any-application-to-the-desktop-right-click-menu-in-vista/>
(under
Python.File>shell) it's working fine even without explorer restart. I'm
quite new to this win32 APIs and stuff. Any help would be appreciated. I've
attached the sample code for your reference.
Thanks.
Hi,
>
> The context menu example provided with pywin32 isn't working in Windows 10.
> Have you had any luck running it from Windows 10?
>
# A sample context menu handler.
# Adds a 'Hello from Python' menu entry to .py files. When clicked, a
# simple message box is displayed.
#
# To demostrate:
# * Execute this script to register the context menu.
# * Open Windows Explorer, and browse to a directory with a .py file.
# * Right-Click on a .py file - locate and click on 'Hello from Python' on
# the context menu.
import pythoncom
from win32com.shell import shell, shellcon
import win32gui
import win32con
class ShellExtension:
_reg_progid_ = "Python.ShellExtension.ContextMenu"
_reg_desc_ = "Python Sample Shell Extension (context menu)"
_reg_clsid_ = "{6D2DFAAD-72B9-4FB0-8935-5BE30F3945FE}"
_com_interfaces_ = [shell.IID_IShellExtInit, shell.IID_IContextMenu]
_public_methods_ = shellcon.IContextMenu_Methods +
shellcon.IShellExtInit_Methods
def Initialize(self, folder, dataobj, hkey):
print("Init", folder, dataobj, hkey)
self.dataobj = dataobj
def QueryContextMenu(self, hMenu, indexMenu, idCmdFirst, idCmdLast, uFlags):
print("QCM", hMenu, indexMenu, idCmdFirst, idCmdLast, uFlags)
# Query the items clicked on
format_etc = win32con.CF_HDROP, None, 1, -1, pythoncom.TYMED_HGLOBAL
sm = self.dataobj.GetData(format_etc)
num_files = shell.DragQueryFile(sm.data_handle, -1)
if num_files>1:
msg = "&Hello from Python (with %d files selected)" % num_files
else:
fname = shell.DragQueryFile(sm.data_handle, 0)
msg = "&Hello from Python (with '%s' selected)" % fname
idCmd = idCmdFirst
items = ['First Python content menu item']
if (uFlags & 0x000F) == shellcon.CMF_NORMAL: # Check == here, since
CMF_NORMAL=0
print("CMF_NORMAL...")
items.append(msg)
elif uFlags & shellcon.CMF_VERBSONLY:
print("CMF_VERBSONLY...")
items.append(msg + " - shortcut")
elif uFlags & shellcon.CMF_EXPLORE:
print("CMF_EXPLORE...")
items.append(msg + " - normal file, right-click in Explorer")
elif uFlags & CMF_DEFAULTONLY:
print("CMF_DEFAULTONLY...\r\n")
else:
print("** unknown flags", uFlags)
win32gui.InsertMenu(hMenu, indexMenu,
win32con.MF_SEPARATOR|win32con.MF_BYPOSITION,
0, None)
indexMenu += 1
for item in items:
win32gui.InsertMenu(hMenu, indexMenu,
win32con.MF_STRING|win32con.MF_BYPOSITION,
idCmd, item)
indexMenu += 1
idCmd += 1
win32gui.InsertMenu(hMenu, indexMenu,
win32con.MF_SEPARATOR|win32con.MF_BYPOSITION,
0, None)
indexMenu += 1
return idCmd-idCmdFirst # Must return number of menu items we added.
def InvokeCommand(self, ci):
mask, hwnd, verb, params, dir, nShow, hotkey, hicon = ci
win32gui.MessageBox(hwnd, "Hello", "Wow", win32con.MB_OK)
def GetCommandString(self, cmd, typ):
# If GetCommandString returns the same string for all items then
# the shell seems to ignore all but one. This is even true in
# Win7 etc where there is no status bar (and hence this string seems
# ignored)
return "Hello from Python (cmd=%d)!!" % (cmd,)
def DllRegisterServer():
import winreg
key = winreg.CreateKey(winreg.HKEY_CLASSES_ROOT,
"Python.File\\shellex")
subkey = winreg.CreateKey(key, "ContextMenuHandlers")
subkey2 = winreg.CreateKey(subkey, "PythonSample")
winreg.SetValueEx(subkey2, None, 0, winreg.REG_SZ,
ShellExtension._reg_clsid_)
print(ShellExtension._reg_desc_, "registration complete.")
def DllUnregisterServer():
import winreg
try:
key = winreg.DeleteKey(winreg.HKEY_CLASSES_ROOT,
"Python.File\\shellex\\ContextMenuHandlers\\PythonSample")
except WindowsError as details:
import errno
if details.errno != errno.ENOENT:
raise
print(ShellExtension._reg_desc_, "unregistration complete.")
if __name__=='__main__':
from win32com.server import register
register.UseCommandLine(ShellExtension,
finalize_register = DllRegisterServer,
finalize_unregister = DllUnregisterServer)
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