Solved

Directory Picker in VC++ 6.0 with MFC

Posted on 2000-04-29
2
723 Views
Last Modified: 2008-02-01
I want to get a directory through a dialog. There is a standard dialog that allows you to select a file, but not only a directory. How can I manage that?
0
Comment
Question by:ToniVR
2 Comments
 
LVL 1

Expert Comment

by:cbeattie
ID: 2762638
I'm not in front of MSVC++ right now to walk you through it exactly, but it is very easy.  One of the menu items is something along the lines of Insert ActiveX compoment (Insert | ActiveX mabye).  There is an ActiveX component named something along the lines of FolderPicker or FolderDialog.  Just insert that ActiveX component into your project and then instantiate an object of that type.  I won't submit this as an answer becuase I haven't given you the precise details , but if it works for you, I would appreciate it if you used the "Accept comment as answer" feature.  Thanks.
0
 
LVL 49

Accepted Solution

by:
DanRollins earned 50 total points
ID: 2763334
Here's a working example.  Very useful for OnClick handler of [Browse] button.


//====================================================
// Pick Dir
//
static char szPickDir[MAX_PATH];
//---------------------------------------------------------------
int CALLBACK
BrowseCallbackProc(HWND hwnd,UINT uMsg,LPARAM lp, LPARAM pData)
{
      char szTmpDir[MAX_PATH];
      switch( uMsg ) {
            case BFFM_INITIALIZED:
           SendMessage(hwnd,BFFM_SETSELECTION,TRUE,(LPARAM)szPickDir); // WParam is TRUE since you are passing a path. It would be FALSE if you were passing a pidl.
        break;
        case BFFM_SELCHANGED:  // Set the status window to the currently selected path.
           if ( SHGetPathFromIDList((LPITEMIDLIST) lp ,szTmpDir) ) {
              SendMessage(hwnd,BFFM_SETSTATUSTEXT,0,(LPARAM)szTmpDir);
           }
        break;
        default:
            break;
    }
      return 0;
}

int PickDir( CString& sDir )
{
      int iRet= IDCANCEL;
      BROWSEINFO bi;
      char szDir[MAX_PATH];
      LPITEMIDLIST pidl;
      LPMALLOC pMalloc;

      if ( sDir > "" ) {
            lstrcpyn( szPickDir, (LPCSTR)sDir, sizeof(szPickDir) ) ;
      } else {
            GetCurrentDirectory( sizeof(szPickDir), szPickDir );
      }
      sDir="";

      if ( SUCCEEDED(SHGetMalloc(&pMalloc)) ) {
            ZeroMemory(&bi,sizeof(bi));
            bi.hwndOwner = NULL;
            bi.pszDisplayName = 0;
            bi.pidlRoot = 0;
            bi.ulFlags = BIF_RETURNONLYFSDIRS | BIF_STATUSTEXT;
            bi.lpfn = BrowseCallbackProc;

            pidl = SHBrowseForFolder(&bi);
            if (pidl) {
                  if (SHGetPathFromIDList(pidl,szDir)) {
                        sDir= szDir;
                        iRet= IDOK;
                  }
                  pMalloc->Free(pidl); pMalloc->Release();
            }
      }
      return ( iRet );
}
0

Featured Post

What is SQL Server and how does it work?

The purpose of this paper is to provide you background on SQL Server. It’s your self-study guide for learning fundamentals. It includes both the history of SQL and its technical basics. Concepts and definitions will form the solid foundation of your future DBA expertise.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Written by John Humphreys C++ Threading and the POSIX Library This article will cover the basic information that you need to know in order to make use of the POSIX threading library available for C and C++ on UNIX and most Linux systems.   [s…
This article will show you some of the more useful Standard Template Library (STL) algorithms through the use of working examples.  You will learn about how these algorithms fit into the STL architecture, how they work with STL containers, and why t…
The viewer will learn how to pass data into a function in C++. This is one step further in using functions. Instead of only printing text onto the console, the function will be able to perform calculations with argumentents given by the user.
The viewer will learn how to clear a vector as well as how to detect empty vectors in C++.

773 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question