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106 lines
4.3 KiB
106 lines
4.3 KiB
# A sample context menu handler.
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# Adds a 'Hello from Python' menu entry to .py files. When clicked, a
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# simple message box is displayed.
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#
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# To demostrate:
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# * Execute this script to register the context menu.
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# * Open Windows Explorer, and browse to a directory with a .py file.
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# * Right-Click on a .py file - locate and click on 'Hello from Python' on
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# the context menu.
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import pythoncom
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from win32com.shell import shell, shellcon
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import win32gui
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import win32con
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class ShellExtension:
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_reg_progid_ = "Python.ShellExtension.ContextMenu"
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_reg_desc_ = "Python Sample Shell Extension (context menu)"
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_reg_clsid_ = "{CED0336C-C9EE-4a7f-8D7F-C660393C381F}"
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_com_interfaces_ = [shell.IID_IShellExtInit, shell.IID_IContextMenu]
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_public_methods_ = shellcon.IContextMenu_Methods + shellcon.IShellExtInit_Methods
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def Initialize(self, folder, dataobj, hkey):
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print("Init", folder, dataobj, hkey)
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self.dataobj = dataobj
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def QueryContextMenu(self, hMenu, indexMenu, idCmdFirst, idCmdLast, uFlags):
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print("QCM", hMenu, indexMenu, idCmdFirst, idCmdLast, uFlags)
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# Query the items clicked on
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format_etc = win32con.CF_HDROP, None, 1, -1, pythoncom.TYMED_HGLOBAL
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sm = self.dataobj.GetData(format_etc)
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num_files = shell.DragQueryFile(sm.data_handle, -1)
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if num_files>1:
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msg = "&Hello from Python (with %d files selected)" % num_files
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else:
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fname = shell.DragQueryFile(sm.data_handle, 0)
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msg = "&Hello from Python (with '%s' selected)" % fname
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idCmd = idCmdFirst
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items = ['First Python content menu item']
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if (uFlags & 0x000F) == shellcon.CMF_NORMAL: # Check == here, since CMF_NORMAL=0
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print("CMF_NORMAL...")
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items.append(msg)
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elif uFlags & shellcon.CMF_VERBSONLY:
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print("CMF_VERBSONLY...")
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items.append(msg + " - shortcut")
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elif uFlags & shellcon.CMF_EXPLORE:
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print("CMF_EXPLORE...")
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items.append(msg + " - normal file, right-click in Explorer")
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elif uFlags & CMF_DEFAULTONLY:
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print("CMF_DEFAULTONLY...\r\n")
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else:
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print("** unknown flags", uFlags)
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win32gui.InsertMenu(hMenu, indexMenu,
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win32con.MF_SEPARATOR|win32con.MF_BYPOSITION,
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0, None)
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indexMenu += 1
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for item in items:
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win32gui.InsertMenu(hMenu, indexMenu,
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win32con.MF_STRING|win32con.MF_BYPOSITION,
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idCmd, item)
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indexMenu += 1
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idCmd += 1
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win32gui.InsertMenu(hMenu, indexMenu,
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win32con.MF_SEPARATOR|win32con.MF_BYPOSITION,
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0, None)
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indexMenu += 1
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return idCmd-idCmdFirst # Must return number of menu items we added.
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def InvokeCommand(self, ci):
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mask, hwnd, verb, params, dir, nShow, hotkey, hicon = ci
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win32gui.MessageBox(hwnd, "Hello", "Wow", win32con.MB_OK)
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def GetCommandString(self, cmd, typ):
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# If GetCommandString returns the same string for all items then
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# the shell seems to ignore all but one. This is even true in
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# Win7 etc where there is no status bar (and hence this string seems
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# ignored)
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return "Hello from Python (cmd=%d)!!" % (cmd,)
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def DllRegisterServer():
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import winreg
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key = winreg.CreateKey(winreg.HKEY_CLASSES_ROOT,
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"Python.File\\shellex")
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subkey = winreg.CreateKey(key, "ContextMenuHandlers")
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subkey2 = winreg.CreateKey(subkey, "PythonSample")
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winreg.SetValueEx(subkey2, None, 0, winreg.REG_SZ, ShellExtension._reg_clsid_)
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print(ShellExtension._reg_desc_, "registration complete.")
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def DllUnregisterServer():
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import winreg
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try:
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key = winreg.DeleteKey(winreg.HKEY_CLASSES_ROOT,
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"Python.File\\shellex\\ContextMenuHandlers\\PythonSample")
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except WindowsError as details:
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import errno
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if details.errno != errno.ENOENT:
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raise
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print(ShellExtension._reg_desc_, "unregistration complete.")
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if __name__=='__main__':
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from win32com.server import register
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register.UseCommandLine(ShellExtension,
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finalize_register = DllRegisterServer,
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finalize_unregister = DllUnregisterServer)
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