浏览文件窗口中指定默认目录

 int CALLBACK BrowseCallbackProc(HWND hwnd,
                                             UINT uMsg,
                                             LPARAM lParam,
                                             LPARAM lpData
                                             )
{
 char szPath[MAX_PATH];

 switch(uMsg)
 {
  case BFFM_INITIALIZED:
   SendMessage(hwnd, BFFM_SETSELECTION, TRUE, lpData);
   break;

  case BFFM_SELCHANGED:
   if (SHGetPathFromIDList((LPITEMIDLIST) lParam ,szPath))
   {
    SendMessage(hwnd, BFFM_SETSTATUSTEXT,0,(LPARAM)szPath); 

   }
   break;
 }

 // if((uMsg   &   BFFM_INITIALIZED)   ==   BFFM_INITIALIZED)
 // {
 //SendMessage(hwnd, BFFM_SETSELECTION, TRUE, lpData);
 // }
  return   0;  

}

void CSystemParam::OnBnClickedBtnPathBrowse()
{
 //ITEMIDLIST *ppidl;
 //SHGetSpecialFolderLocation(NULL, CSIDL_DESKTOP ,&ppidl);
 //if ( ppidl == NULL)
 //{
 // AfxMessageBox(_T("启动路径浏览失败") ) ;
 // return;
 //}

 BROWSEINFO bi;
 memset(&bi,0,sizeof(BROWSEINFO));
    bi.lpszTitle = _T("请选择一个数据文件保存文件");
 bi.lpfn = BrowseCallbackProc;
 bi.lParam = (LPARAM)(LPCTSTR)m_sFileSavePath;
 bi.ulFlags = BIF_RETURNONLYFSDIRS /*| BIF_EDITBOX*/ | BIF_STATUSTEXT /*| BIF_NEWDIALOGSTYLE*/;
    LPITEMIDLIST pidl = SHBrowseForFolder ( &bi );
    if ( pidl != 0 )
    {
        // get the name of the folder
        TCHAR path[MAX_PATH];
        if ( SHGetPathFromIDList ( pidl, path ) )
        {
   m_sFileSavePath.Format(_T("%s"),path);
   if(m_sFileSavePath.GetAt(m_sFileSavePath.GetLength()-1)!=_T('//'))
    m_sFileSavePath.AppendChar(_T('//'));
   UpdateData(FALSE);
        }

        // free memory used
        IMalloc * imalloc = 0;
        if ( SUCCEEDED( SHGetMalloc ( &imalloc )) )
        {
            imalloc->Free ( pidl );
            imalloc->Release ( );
        }
    }
}

参考资料：

The ''Browse For Folder'' dialog allows the user to select a folder from all available local drives and network resources.
The following code snippet demonstrate how to display this dialog-box. The BrowseFolders function accept 3 parameters:
hwnd - The handle of the parent window
lpszFolder - Address of a buffer to receive the selected folder. Before calling this function, you should fill this buffer with the folder that you want to be selected when the dialog-box is loaded at first.
lpszTitle - The text that should be displayed as a title of the ''Browse Folders'' dialog-box

Return back to C/C++ code index

#include
#include

int CALLBACK BrowseForFolderCallback(HWND hwnd,UINT uMsg,LPARAM lp, LPARAM pData)
{
 char szPath[MAX_PATH];

 switch(uMsg)
 {
  case BFFM_INITIALIZED:
   SendMessage(hwnd, BFFM_SETSELECTION, TRUE, pData);
   break;

  case BFFM_SELCHANGED:
   if (SHGetPathFromIDList((LPITEMIDLIST) lp ,szPath))
   {
    SendMessage(hwnd, BFFM_SETSTATUSTEXT,0,(LPARAM)szPath); 

   }
   break;
 }

 return 0;
}

BOOL BrowseFolders(HWND hwnd, LPSTR lpszFolder, LPSTR lpszTitle)
{
 BROWSEINFO bi;
 char szPath[MAX_PATH + 1];
 LPITEMIDLIST pidl;
 BOOL bResult = FALSE;

 LPMALLOC pMalloc;

    if (SUCCEEDED(SHGetMalloc(&pMalloc)))
 {
  bi.hwndOwner = hwnd;
  bi.pidlRoot = NULL;
  bi.pszDisplayName = NULL;
  bi.lpszTitle = lpszTitle;
  bi.ulFlags = BIF_STATUSTEXT; //BIF_EDITBOX
  bi.lpfn = BrowseForFolderCallback;
  bi.lParam = (LPARAM)lpszFolder;
  
  pidl = SHBrowseForFolder(&bi);
  if (pidl)
  {
   if (SHGetPathFromIDList(pidl,szPath))
   {
    bResult = TRUE;
    strcpy(lpszFolder, szPath);
   }

     pMalloc->Free(pidl);
     pMalloc->Release();
               
  }
 }

 return bResult;
 
}

 

文章出处：http://www.diybl.com/course/3_program/c++/cppsl/2008520/117219.html