VC 彈出選擇文件夾對話框

    首先創建如下的對話框，併爲它創建類Dialog，然後添加一個按鈕設置按鈕ID爲IDC_BTN_VIEW，爲按鈕添加消息響應函數OnBtnView()，並添加如下代碼。

 

//這個函數可以設置爲全局函數

//顯示文件夾對話框，返回選中文件夾的路徑
CString BrowseForFolder(HWND hWnd)
{
 TCHAR szTitle[] = _T("Select a folder");
 TCHAR szDisplayName[MAX_PATH] = _T("");
 TCHAR  szPath[MAX_PATH] = _T("");

 BROWSEINFO bi;
 bi.hwndOwner = hWnd;
 bi.pidlRoot = NULL;
 bi.lpszTitle = szTitle;
 bi.pszDisplayName = szDisplayName;
 bi.ulFlags = BIF_RETURNONLYFSDIRS;
 bi.lpfn  = NULL;
 bi.lParam = 0;
 LPITEMIDLIST pItemIDList = SHBrowseForFolder(&bi);
 if(pItemIDList)
 {
  SHGetPathFromIDList(pItemIDList,szPath);
  IMalloc *pMalloc;
  if(SHGetMalloc(&pMalloc) != NOERROR)
  {
   TRACE( "Failed to get pointer to shells task allocator" );
   return szPath;
  }
  pMalloc->Free(pItemIDList);
  if( pMalloc )
   pMalloc->Release();
 }
 return szPath;
}

 

//按鈕中添加如下代碼

void CFtpServerTestDlg::OnBtnView()
{
 // TODO: Add your control notification handler code here
 /***********************方法一******************************/
 //彈出文件夾選擇對話框
 UpdateData(TRUE);
 char szDir[MAX_PATH];
 BROWSEINFO bi;
 ITEMIDLIST *pidl;
 bi.hwndOwner = this->m_hWnd;
 bi.pidlRoot = NULL;
 bi.pszDisplayName = szDir;
 bi.lpszTitle = "請選擇目錄";
 bi.ulFlags = BIF_STATUSTEXT | BIF_RETURNONLYFSDIRS;
 bi.lpfn = NULL;
 bi.lParam = 0;
 bi.iImage = 0;
 
 pidl = SHBrowseForFolder(&bi);
 if(pidl == NULL)  return;
 if(!SHGetPathFromIDList(pidl, szDir)) 
  return;
 else  
  MessageBox(szDir); 
 UpdateData(FALSE); 
 /***********************************************************/

 

/************************方法二*****************************/
 CString str = BrowseForFolder(NULL);
 MessageBox(str);
 /***********************************************************/
}