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.venv/Lib/site-packages/win32comext/shell/demos/servers/copy_hook.py

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+# A sample shell copy hook.
+
+# To demostrate:
+# * Execute this script to register the context menu.
+# * Open Windows Explorer
+# * Attempt to move or copy a directory.
+# * Note our hook's dialog is displayed.
+import sys, os
+import pythoncom
+from win32com.shell import shell, shellcon
+import win32gui
+import win32con
+import winerror
+
+# Our shell extension.
+class ShellExtension:
+    _reg_progid_ = "Python.ShellExtension.CopyHook"
+    _reg_desc_ = "Python Sample Shell Extension (copy hook)"
+    _reg_clsid_ = "{1845b6ba-2bbd-4197-b930-46d8651497c1}"
+    _com_interfaces_ = [shell.IID_ICopyHook]
+    _public_methods_ = ["CopyCallBack"]
+
+    def CopyCallBack(self, hwnd, func, flags, srcName, srcAttr, destName, destAttr):
+        # This function should return:
+        # IDYES Allows the operation.
+        # IDNO Prevents the operation on this folder but continues with any other operations that have been approved (for example, a batch copy operation).
+        # IDCANCEL Prevents the current operation and cancels any pending operations.
+        print("CopyCallBack", hwnd, func, flags, srcName, srcAttr, destName, destAttr)
+        return win32gui.MessageBox(
+            hwnd, "Allow operation?", "CopyHook", win32con.MB_YESNO
+        )
+
+
+def DllRegisterServer():
+    import winreg
+
+    key = winreg.CreateKey(
+        winreg.HKEY_CLASSES_ROOT,
+        "directory\\shellex\\CopyHookHandlers\\" + ShellExtension._reg_desc_,
+    )
+    winreg.SetValueEx(key, None, 0, winreg.REG_SZ, ShellExtension._reg_clsid_)
+    key = winreg.CreateKey(
+        winreg.HKEY_CLASSES_ROOT,
+        "*\\shellex\\CopyHookHandlers\\" + ShellExtension._reg_desc_,
+    )
+    winreg.SetValueEx(key, 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,
+            "directory\\shellex\\CopyHookHandlers\\" + ShellExtension._reg_desc_,
+        )
+    except WindowsError as details:
+        import errno
+
+        if details.errno != errno.ENOENT:
+            raise
+    try:
+        key = winreg.DeleteKey(
+            winreg.HKEY_CLASSES_ROOT,
+            "*\\shellex\\CopyHookHandlers\\" + ShellExtension._reg_desc_,
+        )
+    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,
+    )
+#!/usr/bin/env python