How set SHBrowseForFolder default path to expand My Computer (Win32)

Question

How set SHBrowseForFolder default path to expand My Computer (Win32)

drjackool 956

Hi
I can set default path SHBrowseForFolder() to folder paths by BFFM_SETSELECTION message but how can I just expand Computer(My Computer/This PC) branch like below photo?

Thanks

Viorel 125.7K Reputation points

2022-08-11T14:21:28.15+00:00

Did you try sending the BFFM_SETEXPANDED message, which is explained in documentation?

Probably you can also use the BFFM_SETSELECTION message to select and expand the Computer node, then another BFFM_SETSELECTION to select the Desktop node.
RLWA32 51,456 Reputation points

2022-08-11T15:12:34.217+00:00

Did I misunderstand the question and what you are trying to accomplish?
RLWA32 51,456 Reputation points

2022-08-15T09:00:00.253+00:00

Any update on this question? Have you had a chance to try the code I posted?

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Viorel 125.7K Reputation points

2022-08-11T14:21:28.15+00:00

Did you try sending the BFFM_SETEXPANDED message, which is explained in documentation?

Probably you can also use the BFFM_SETSELECTION message to select and expand the Computer node, then another BFFM_SETSELECTION to select the Desktop node.
RLWA32 51,456 Reputation points

2022-08-11T15:12:34.217+00:00

Did I misunderstand the question and what you are trying to accomplish?
RLWA32 51,456 Reputation points

2022-08-15T09:00:00.253+00:00

Any update on this question? Have you had a chance to try the code I posted?

Answer 1

RLWA32 51,456

In terms of the shell obtain the pidl of the known folder (FOLDERID_ComputerFolder) and assign it to the BROWSEINFO structure member pidlRoot. Then SHBrowseForFolder returns this (Win10 21H1) -

drjackool 956 Reputation points

2022-08-11T15:19:30.963+00:00

Not work me!!! following window is displayed

RLWA32 51,456

This is the code I used from a Win32 desktop application -

   #define STRICT_TYPED_ITEMIDS  
   #include <ShlObj.h>  


    PIDLIST_ABSOLUTE pidlComputer{};  
  
    if (SUCCEEDED(SHGetKnownFolderIDList(FOLDERID_ComputerFolder, KF_FLAG_DEFAULT, NULL, &pidlComputer)))  
    {  
        BROWSEINFOW binfo{};  
        binfo.hwndOwner = m_hWnd;  
        binfo.pidlRoot = pidlComputer;  
        binfo.ulFlags = BIF_NEWDIALOGSTYLE;  
  
        PIDLIST_ABSOLUTE pidl = SHBrowseForFolderW(&binfo);  
  
        if (pidl)  
            CoTaskMemFree(pidl);  
  
        CoTaskMemFree(pidlComputer);  
    }

RLWA32 51,456 Reputation points

2022-08-11T17:21:59.863+00:00

Did you properly initialize COM?

Note If COM is initialized using CoInitializeEx with the COINIT_MULTITHREADED flag, SHBrowseForFolder fails if the calling application uses the BIF_USENEWUI or BIF_NEWDIALOGSTYLE flag in the BROWSEINFO structure.

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How set SHBrowseForFolder default path to expand My Computer (Win32)

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