Win32 实现 MFC CFileDialog 对话框

 void CWriteWnd::OpenFileDialog()
 {
     OPENFILENAME ofn;
     TCHAR szFile[MAX_PATH] = _T("");

     ZeroMemory(&ofn, sizeof(ofn));
     ofn.lStructSize = sizeof(ofn);
     ofn.hwndOwner   = *this;
     ofn.lpstrFile   = szFile;
     ofn.nMaxFile    = sizeof(szFile);
     ofn.lpstrFilter = NULL;
     ofn.nFilterIndex    = ;
     ofn.lpstrFileTitle  = NULL;
     ofn.nMaxFileTitle   = ;
     ofn.lpstrInitialDir = NULL;
     ofn.Flags = OFN_EXPLORER | OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;

     GetOpenFileName(&ofn);//如果用户指定了一个文件名且点击OK按钮，返回值为非零值。如果用户取消或关闭Save对话框或错误出现，返回值为零。
     if (GetOpenFileName(&ofn))
     {
         //std::vector<wstring> vctString(1, szFile);//保存添加文件的路径
     }
    else
    {
        DWORD dwError = NOERROR;
        dwError = CommDlgExtendedError();
    }
 }

注:The error codes returned by CommDlgExtendedError are defined in the Cderr.h file.