How can i browse a folder C++, MFC

I have just finished a project and my project has got an method which allow you create a button for browse an folder. I have created a class to do this duty.

// This is getFolderPath.h
#include "shlobj.h"
#include <string>
class getFolderPath
{
public:
    getFolderPath(void);
    ~getFolderPath(void);
   static  bool GetFolderPath(std::string& folderpath, HWND);
};

// This is getFolderPath.cpp
// You have to add "stdafx.h" library if you make your project in Visual Stdio
#include "getFolderPath.h"

getFolderPath::getFolderPath(void)
{
    /*hOwner = hWnd;*/
}

getFolderPath::~getFolderPath(void)
{
}

bool getFolderPath::GetFolderPath(std::string& folderpath,HWND hOwner)
{
    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 = NULL;

    // 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] = {L'\0'};
        if(::SHGetPathFromIDListA(pIDL, buffer) != 0)
        {
            // Set the string value.
            folderpath = buffer;
            retVal = true;
        }       

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

    ::OleUninitialize();

    return retVal;
}

How you can use my class.

+ Create two file .h  and  .cpp with their content as  i wrote above.

+ Coppy two file into your project, add "getFolderPath.h" library in you programme

+ In main programme or when you process an event such as click to a button, you report an std::string variable to call GetFolderPath function. Example: std::string path = "";

   - If your application is console application,  hOwner = NULL 
   - If  it is a window application or a MFC application, you have to use it's HWND for GetFolderPath function. You can get it's HWND by this function: this->GetSafeHWND();

If success, (GetFolderPath return true)  path will contain your path to folder which you choose

I use static function:  static  bool GetFolderPath(std::string& folderpath, HWND); so you can call it although you don't create new object

This is example which i do with console application:

#include "getPathFolder.h"
#include <string>
int main()
{
        std::string sPath = "";
        if(getPathFoder::GetFolderPath(sPath,NULL))
        {
               printf("You have just chosen this folder: %s",sPath.c_str());       
        }
        else
        {
                 // Process when can get folder's path
        }
        return 1;
}

Best wishes for you, thanks for visiting my blog!

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