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DirDialog.cpp
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DirDialog.cpp：Code Content
  2. #include "DirDialog.h"
  3. #include <shlobj.h>
  5. static int __stdcall BrowseCtrlCallback(HWND hwnd, UINT uMsg, LPARAM lParam, LPARAM lpData)
  6. {
  7.   CDirDialog* pDirDialogObj = (CDirDialog*)lpData;
  9.   if (uMsg == BFFM_INITIALIZED && !pDirDialogObj->m_strSelDir != NULL)
  10.   {
  11.   
  12.   }
  13.   else 
  14.   {
  16.   }
  18.   return 0;
  19. }
  22. CDirDialog::CDirDialog()
  23. {
  24. this->m_strPath    = (char *) new char[32768];
  25.     this->m_strInitDir = NULL;
  26.     this->m_strSelDir  = NULL;
  27.     this->m_strTitle   = NULL;
  28. }
  30. CDirDialog::~CDirDialog()
  31. {
  33. }
  35. int CDirDialog::DoBrowse()
  36. {
  38.   BROWSEINFO bInfo;
  39.   LPITEMIDLIST pidl;
  40.   ZeroMemory ( (PVOID) &bInfo,sizeof (BROWSEINFO));
  42.   if (m_strInitDir != NULL)
  43.   {
  44.     OLECHAR       olePath[MAX_PATH];
  45.     ULONG         chEaten;
  46.     ULONG         dwAttributes;
  47.     HRESULT       hr;
  48.     LPSHELLFOLDER pDesktopFolder;
  51.     
  52. if (SUCCEEDED(SHGetDesktopFolder(&pDesktopFolder)))
  53.     {
  54.  
  56.       MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, m_strInitDir, -1,
  57.                           olePath, MAX_PATH);
  59.  
  60.       hr = pDesktopFolder->ParseDisplayName(NULL,
  61.                                             NULL,
  62.                                             olePath,
  63.                                             &chEaten,
  64.                                             &pidl,
  65.                                             &dwAttributes);
  66.       bInfo.pidlRoot = pidl;
  68.     }
  69.   }
  70.  
  71.   bInfo.hwndOwner      = NULL;
  72.   bInfo.pszDisplayName = m_strPath;
  73.   bInfo.lpszTitle      = "Select Directory";
  74.   bInfo.ulFlags        = BIF_RETURNFSANCESTORS | BIF_RETURNONLYFSDIRS;
  75.   bInfo.lpfn           = BrowseCtrlCallback;
  76.   bInfo.lParam         = (LPARAM)this;
  78.   if ((pidl = SHBrowseForFolder(&bInfo)) == NULL)
  79.   {
  80.   return 0;
  81.   }
  83.   m_iImageIndex = bInfo.iImage;
  85.   if (SHGetPathFromIDList(pidl, m_strPath) == FALSE)
  86.   {
  87.     return 0;
  88.   }
  90.   return 1;
  91. }