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How to Browse for a Folder

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16 Feb 20061 min read 226.1K   2.9K   55   49
This article presents a 'cut-n-paste' solution for getting the path to a directory.

Image 1

Introduction

This article presents a no-frills, cut-n-paste solution to the age-old problem of browsing for a folder. There are several classes out here that offer much more customization and a plethora of features, but I'm sure one more example won't hurt.

When to use this solution

The benefit of this approach over some of the others here is that this implementation is a direct wrapper function for SHBrowseForFolder. As such, you can use it in console applications that don't use MFC, such as unit-testing applications that could benefit from not hard-coding an output location for test results.

So, in short, if you're looking for eye candy, check out XFolderDialog or some of the other folder dialogs here. Otherwise, read on.

Using the code

To use this code, you need to include the following standard files:

#include "shlobj.h"
#include <string>

The GetFolder function

Params

  • folderpath - A reference to the string that will contain the folder path if successful.
  • szCaption - An optional message for the dialog.
  • hOwner - An optional handle to the parent window.

Returns

  • true if successful, false if cancelled or an error occurs.
bool GetFolder(std::string& folderpath, 
               const char* szCaption = NULL, 
               HWND hOwner = NULL)
{
   bool retVal = false;

   // The BROWSEINFO struct tells the shell 
   // how it should display the dialog.
   BROWSEINFO bi;
   memset(&bi, 0, sizeof(bi));

   bi.ulFlags   = BIF_USENEWUI;
   bi.hwndOwner = hOwner;
   bi.lpszTitle = szCaption;

   // must call this if using BIF_USENEWUI
   ::OleInitialize(NULL);

   // Show the dialog and get the itemIDList for the 
   // selected folder.
   LPITEMIDLIST pIDL = ::SHBrowseForFolder(&bi);

   if(pIDL != NULL)
   {
      // Create a buffer to store the path, then 
      // get the path.
      char buffer[_MAX_PATH] = {'\0'};
      if(::SHGetPathFromIDList(pIDL, buffer) != 0)
      {
         // Set the string value.
         folderpath = buffer;
         retVal = true;
      }

      // free the item id list
      CoTaskMemFree(pIDL);
   }

   ::OleUninitialize();

   return retVal;
}

Conclusion

Well, that's really all there is to it. If this code saves time for even one person out here, then the few minutes spent writing this was well worth it. Enjoy!

License

This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here


Written By
CEO Aspen Insights
United States United States
Walter Storm is currently doing quantitative research and data science. Originally from Tunkhannock, PA., he has a B.S. in Aerospace Engineering from Embry-Riddle Aeronautical University[^], and an M.S. in Systems Engineering from SMU[^]. He has been professionally developing software in some form or another since January of 2001.

View Walter Storm's profile on LinkedIn.[^]

Comments and Discussions

 
QuestionPossible to preset a specific folder? Pin
Christof Schardt16-Feb-06 11:38
Christof Schardt16-Feb-06 11:38 
AnswerRe: Possible to preset a specific folder? Pin
Nitron16-Feb-06 11:44
Nitron16-Feb-06 11:44 
GeneralRe: Possible to preset a specific folder? Pin
Christof Schardt16-Feb-06 11:50
Christof Schardt16-Feb-06 11:50 
Nitron wrote:
I do believe there are flags/params for the BROWSEINFO struct that will specify this


I looked for it but didn't find.
pidlRoot cannot be used, because it doesn't show the tree above the specified folder, so you are not able to navigate upwards from the starting-point.

Christof
GeneralRe: Possible to preset a specific folder? Pin
Nish Nishant16-Feb-06 14:18
sitebuilderNish Nishant16-Feb-06 14:18 
GeneralRe: Possible to preset a specific folder? Pin
Christof Schardt16-Feb-06 19:56
Christof Schardt16-Feb-06 19:56 
GeneralRe: Possible to preset a specific folder? Pin
Nish Nishant17-Feb-06 1:23
sitebuilderNish Nishant17-Feb-06 1:23 
GeneralRe: Possible to preset a specific folder? Pin
SBJ21-Feb-06 4:52
SBJ21-Feb-06 4:52 
GeneralRe: Possible to preset a specific folder? Pin
Nish Nishant21-Feb-06 13:15
sitebuilderNish Nishant21-Feb-06 13:15 
GeneralRe: Possible to preset a specific folder? Pin
SBJ21-Feb-06 13:27
SBJ21-Feb-06 13:27 
AnswerRe: Possible to preset a specific folder? Pin
Nitron17-Feb-06 3:32
Nitron17-Feb-06 3:32 
AnswerRe: Possible to preset a specific folder? Pin
Stephan Poirier21-Feb-06 18:12
Stephan Poirier21-Feb-06 18:12 
AnswerRe: Possible to preset a specific folder? Pin
brightatlantis16-Oct-07 4:26
brightatlantis16-Oct-07 4:26 

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