Knowledge Base Nr: 00019 filedialog.cpp - http://www.swe-kaiser.de

MFC: Beispiel für CFileDialog (single- und multiselection)

  
//singleselection
void CDalliklickDlg::OnBilderlisteStarten()
{
  const char* lpszFilter = "ClickCon Bilderlisten (*.ccl)|*.ccl|"
                             "Alle Files|*.*|"
                             "|";

  CFileDialog dlg(TRUE, "ccl", "", OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT, lpszFilter);

  if (dlg.DoModal() == IDOK)
  {
      CString strFilename = dlg.GetPathName();

      FILE* fp = fopen(strFilename, "rt");
...
  }
}


//multiselection
void CDalliklickDlg::OnDateiImportieren()
{
  const char* lpszFilter = "Alle Files|*.jpg;*.jpe;*.jpeg;*.tif;*.tiff;*.png;*.tga;*.pcx|"
                             "JPEG Files (*.jpg;*.jpe;*.jpeg)|*.jpg;*.jpe;*.jpeg|"
                             "TIFF Files (*.tif;*.tiff)|*.tif;*.tiff|"
                             "PNG Files (*.png)|*.png|"
                             "TGA Files (*.tga)|*.tga|"
                             "PCX Files (*.pcx)|*.pcx|"
                             "|";

  CFileDialog dlg(TRUE, NULL, NULL, OFN_ALLOWMULTISELECT, lpszFilter, NULL);
  /*
  To allow the user to select multiple files, set the OFN_ALLOWMULTISELECT flag before calling DoModal.
  You need to supply your own filename buffer to accommodate the returned list of multiple filenames.
  Do this by replacing m_ofn.lpstrFile with a pointer to a buffer you have allocated,
  after constructing the CFileDialog, but before calling DoModal.
  Additionally, you must set m_ofn.nMaxFile with the number of characters in the buffer pointed
  to by m_ofn.lpstrFile.
  */
  const MAXBUFFER = 60*1024;
  char* pszBuffer = new char[MAXBUFFER];
  ZeroMemory(pszBuffer, MAXBUFFER);
  dlg.m_ofn.lpstrFile = pszBuffer;
  dlg.m_ofn.nMaxFile = MAXBUFFER;

  if (dlg.DoModal() == IDOK)
  {
      POSITION pos = dlg.GetStartPosition();
      while (pos)
      {
          CString strCopyFrom, strCopyTo, strFilename;

          strCopyFrom.Format("%s", (const char*) dlg.GetNextPathName(pos));

          strFilename = strCopyFrom.Mid(strCopyFrom.ReverseFind('\\')+1);

          strCopyTo = g_proc.BuildFilename("img-in\\%s", (const char*)strFilename);

          BOOL bSucc = ::CopyFile(strCopyFrom, strCopyTo, FALSE);   //kopieren und evtl. überschreiben
          ASSERT(bSucc);
      }
  }

  delete pszBuffer;
}