Stav 23.06.2026

2026-06-23 15:20:56 +02:00
commit 6d91e83e8c
5670 changed files with 1145969 additions and 0 deletions
@@ -0,0 +1,68 @@
+"""
+Demonstrates how to propagate a folder's view state to all its subfolders
+The format of the ColInfo stream is apparently undocumented, but
+it can be read raw from one folder and copied to another's view state.
+"""
+
+import os
+import sys
+
+import pythoncom
+from win32com.shell import shell, shellcon
+
+template_folder = os.path.split(sys.executable)[0]
+print("Template folder:", template_folder)
+template_pidl = shell.SHILCreateFromPath(template_folder, 0)[0]
+template_pb = shell.SHGetViewStatePropertyBag(
+    template_pidl,
+    "Shell",
+    shellcon.SHGVSPB_FOLDERNODEFAULTS,
+    pythoncom.IID_IPropertyBag,
+)
+
+# Column info has to be read as a stream
+# This may blow up if folder has never been opened in Explorer and has no ColInfo yet
+template_iunk = template_pb.Read("ColInfo", pythoncom.VT_UNKNOWN)
+template_stream = template_iunk.QueryInterface(pythoncom.IID_IStream)
+streamsize = template_stream.Stat()[2]
+template_colinfo = template_stream.Read(streamsize)
+
+
+def update_colinfo(not_used, dir_name, fnames):
+    for fname in fnames:
+        full_fname = os.path.join(dir_name, fname)
+        if os.path.isdir(full_fname):
+            print(full_fname)
+            pidl = shell.SHILCreateFromPath(full_fname, 0)[0]
+            pb = shell.SHGetViewStatePropertyBag(
+                pidl,
+                "Shell",
+                shellcon.SHGVSPB_FOLDERNODEFAULTS,
+                pythoncom.IID_IPropertyBag,
+            )
+            ## not all folders already have column info, and we're replacing it anyway
+            pb.Write("ColInfo", template_stream)
+            iunk = pb.Read("ColInfo", pythoncom.VT_UNKNOWN)
+            s = iunk.QueryInterface(pythoncom.IID_IStream)
+            s.Write(template_colinfo)
+            s = None
+            ## attribute names read from registry, can't find any way to enumerate IPropertyBag
+            for attr in (
+                "Address",
+                "Buttons",
+                "Col",
+                "Vid",
+                "WFlags",
+                "FFlags",
+                "Sort",
+                "SortDir",
+                "ShowCmd",
+                "FolderType",
+                "Mode",
+                "Rev",
+            ):
+                pb.Write(attr, template_pb.Read(attr))
+            pb = None
+
+
+os.path.walk(template_folder, update_colinfo, None)