MFC读取单个文件/文件名目录/文件目录下所有文件

待我称王封你为后i 2023-06-04 03:56 28阅读 0赞

1.读取单个文件路径

1 Invalidate();
     2 
     3     CFileDialog dlg(TRUE, NULL, NULL, OFN_FILEMUSTEXIST | OFN_PATHMUSTEXIST | OFN_READONLY,
     4         TEXT("Supported Types (*.jpg;*.png;*.gif;*.bmp;...)|*.jpg;*.png;*.gif;*.bmp|Tiff(*.tiff;*.tif)|*.tiff;*.tif|All Files(*.*)|*.*||"), NULL);
     5     dlg.m_ofn.nFilterIndex = 1;
     6     dlg.m_ofn.hwndOwner = m_hWnd;
     7     dlg.m_ofn.lStructSize = sizeof(OPENFILENAME);
     8     dlg.m_ofn.lpstrTitle = TEXT("Opening Image...\0");
     9     dlg.m_ofn.nMaxFile = MAX_PATH;
    10     if (dlg.DoModal() == IDOK)
    11     {
    12         m_path = dlg.GetPathName();
    13         m_isOpen = TRUE;
    14         UpdateData(FALSE);
    15     }
    16     else
    17         return;
    18     //左边图片控件显示图片
    19     char* s_path;
    20     USES_CONVERSION;
    21     s_path = T2A(m_path);

2.读取多个文件的文件名

1    vector<CString>fileDict;
    　　　　 CFileDialog dlg(TRUE, _T("*"), NULL, OFN_ALLOWMULTISELECT | OFN_FILEMUSTEXIST, _T("所有文件 file (*.*)|*.*||"), NULL);
     2     DWORD MAXFILE = 500 * MAX_PATH;// 最多打开500个文件
     3     dlg.m_ofn.nMaxFile = MAXFILE;
     4     TCHAR* buf = new TCHAR[MAXFILE];
     5     memset(buf, 0, sizeof(TCHAR) * MAXFILE);
     6     dlg.m_ofn.lpstrFile = buf;
     7 
     8     int iReturn = dlg.DoModal();
     9     if (iReturn == IDCANCEL)
    10     {
    11         return;
    12     }
    13     POSITION pos = dlg.GetStartPosition();
    14     while (pos != NULL)
    15     {
    16         fileDict.push_back(dlg.GetNextPathName(pos));
    17     }
    18 
    19     delete[] buf;  
    　　　　}

3.选择文件夹路径

1 CString m_saveFilePath;
     2     TCHAR szPath[_MAX_PATH];
     3     BROWSEINFO bi;
     4     bi.hwndOwner = GetSafeHwnd();
     5     bi.pidlRoot = NULL;
     6     bi.lpszTitle = _T("请选择图片路径");
     7     bi.pszDisplayName = szPath;
     8     bi.ulFlags = BIF_RETURNONLYFSDIRS;
     9     bi.lpfn = NULL;
    10     bi.lParam = NULL;
    11 
    12     LPITEMIDLIST pItemIDList = SHBrowseForFolder(&bi);
    13     if (pItemIDList)
    14     {
    15         if (SHGetPathFromIDList(pItemIDList, szPath))
    16         {
    17             m_saveFilePath = szPath;
    18             m_saveFilePath = m_saveFilePath + _T("\\");
    19         }
    20 
    21         //use IMalloc interface for avoiding memory leak  
    22         IMalloc* pMalloc;
    23         if (SHGetMalloc(&pMalloc) != NOERROR)
    24         {
    25             TRACE(_T("Can't get the IMalloc interface\n"));
    26         }
    27 
    28         pMalloc->Free(pItemIDList);
    29         if (pMalloc)
    30             pMalloc->Release();
    31         UpdateData(FALSE);
    32     }

转载于:https://www.cnblogs.com/sclu/p/11599499.html