# 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_ = "{CED0336C-C9EE-4a7f-8D7F-C660393C381F}"
_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 = []
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):
return "Hello from Python!!"
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, 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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