What are the known folder paths returned by SHGetKnownFolderPath on Windows 11 using OneDrive's Known Folder Move Feature?

RLWA32 45,396

OneDrive now includes a feature called Known Folder Move.

It is my understanding that for consumers (not managed devices) when OneDrive is used on a Windows 11 system it will implement this feature and several of the known folders will now default to OneDrive storage instead of the local file system. The local folders are viewed as "backup" for OneDrive.

I do not use OneDrive or Windows 11 so I cannot determine what code requesting known folder paths will return in that environment.

On my Win10 22H2 system using the 20348 SDK the knownfolders.h file includes GUIDs as shown here -

// {FDD39AD0-238F-46AF-ADB4-6C85480369C7}
DEFINE_KNOWN_FOLDER(FOLDERID_Documents,           0xFDD39AD0, 0x238F, 0x46AF, 0xAD, 0xB4, 0x6C, 0x85, 0x48, 0x03, 0x69, 0xC7);

// {f42ee2d3-909f-4907-8871-4c22fc0bf756}
DEFINE_KNOWN_FOLDER(FOLDERID_LocalDocuments,      0xf42ee2d3, 0x909f, 0x4907, 0x88, 0x71, 0x4c, 0x22, 0xfc, 0x0b, 0xf7, 0x56);

I am seeking the assistance of developers that have a Windows 11 system configured to use OneDrive Known Folder Move to run the following and share the results with us -

#define WIN32_LEAN_AND_MEAN
#include <Windows.h>
#include <ShlObj.h>

#include <stdio.h>

int main()
{
    auto hr = CoInitialize(nullptr);
    if(SUCCEEDED(hr))
    {
        PWSTR pszDocsDefault{}, pszDocsDefaultPath{},
            pszLocalDocsDefault{}, pszLocalDocsDefaultPath{};

        hr = SHGetKnownFolderPath(FOLDERID_Documents, KF_FLAG_DEFAULT, NULL, &pszDocsDefault);
        hr = SHGetKnownFolderPath(FOLDERID_Documents, KF_FLAG_DEFAULT_PATH, NULL, &pszDocsDefaultPath);
        wprintf_s(L"FOLDERID_Documents paths:\n\tKF_FLAG_DEFAULT: %s\n\tKF_FLAG_DEFAULT_PATH: %s\n\n",
            pszDocsDefault, pszDocsDefaultPath);

        hr = SHGetKnownFolderPath(FOLDERID_LocalDocuments, KF_FLAG_DEFAULT, NULL, &pszLocalDocsDefault);
        hr = SHGetKnownFolderPath(FOLDERID_LocalDocuments, KF_FLAG_DEFAULT_PATH, NULL, &pszLocalDocsDefaultPath);
        wprintf_s(L"FOLDERID_LocalDocuments paths:\n\tKF_FLAG_DEFAULT: %s\n\tKF_FLAG_DEFAULT_PATH: %s\n\n",
            pszLocalDocsDefault, pszLocalDocsDefaultPath);

        CoTaskMemFree(pszDocsDefault);
        CoTaskMemFree(pszDocsDefaultPath);
        CoTaskMemFree(pszLocalDocsDefault);
        CoTaskMemFree(pszLocalDocsDefaultPath);
    }

    CoUninitialize();

    return 0;
}

Thanks in advance to all who assist.

Tong Xu - MSFT 2,456 Reputation points Microsoft Vendor

2024-10-02T06:57:17.38+00:00

@RLWA32 I' m so sorry to tell you that we can't test it with OneDrive due to security policy. Microsoft Q&A also doesn't have the support in OneDrive. Get help with OneDrive may help you.
RLWA32 45,396 Reputation points

2024-10-02T07:03:58.95+00:00

@Tong Xu - MSFT, Thank you for your response. I appreciate that your particular circumstance may not permit you to assist. However, this is a Windows API issue concerning a shell function that happens to be relevant to OneDrive. It is not about how to use OneDrive.
Tong Xu - MSFT 2,456 Reputation points Microsoft Vendor

2024-10-02T07:34:52.5333333+00:00

@RLWA32 The doc have this: Known Folder Move. The professional developer will help you once posting the question. Two more options, Stackoverflow and github issue.

If this is urgent for you. You can open ticket. But it is not free.
If you want it, you can tell me. If you don't, we can request it at last.
RLWA32 45,396 Reputation points

2024-10-02T07:46:01.5333333+00:00

@Tong Xu - MSFT, My question about how the Windows API shell function returns known folder information in connection with OneDrive Known Folder Move and Windows 11 is related to the problem mentioned in https://learn.microsoft.com/en-us/answers/questions/2081056/how-can-i-write-my-deployment-app-to-force-local-d.
Tong Xu - MSFT 2,456 Reputation points Microsoft Vendor

2024-10-02T08:19:45.35+00:00

@RLWA32 I see.... It seems that the folders are tracked by the registry once turning on the backup for documents in OneDrive. I guess Change the location of your OneDrive folderwill update the registry. Otherwise, SHGetKnownFolderPath still remember the default path.

Unfortunately, I can't verify it due to no access to using OneDrive. :(
RLWA32 45,396 Reputation points

2024-10-02T08:48:53.2166667+00:00

@Tong Xu - MSFT, If you refer to the sample code that I posted you can see that it tests two different known folders with two different flags.What I was hoping to determine when OneDrive's Known Folder Move is in effect is which, if any, of those calls to SHGetKnownFolderPath would return the path to a user's local documents folder instead of the one on OneDrive.

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What are the known folder paths returned by SHGetKnownFolderPath on Windows 11 using OneDrive's Known Folder Move Feature?

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