Solved

CHTML View : Add Favorites Menu

Posted on 2004-04-04
5
382 Views
Last Modified: 2013-11-20
I am using the microsoft sample "mfcie" from the samples download at the msdn site to go by on this. When trying to fill the 'favorites' menu, I keep getting a debug assertation failure. I can get this funtion to work fine using a SDI app, but it crashes if I try to use it in a MDI app. I'm trying to make a MDI web browser (just for fun and to learn from) to have several browsers open in the same frame. Here is the code:

int CWebView::setup()
{
// set up Favorites menu
      TCHAR           sz[MAX_PATH];
      TCHAR           szPath[MAX_PATH];
      HKEY            hKey;
      DWORD           dwSize;
      CMenu*          pMenu;

      // first get rid of bogus submenu items.
      pMenu = GetMenu()->GetSubMenu(3);
      while(pMenu->DeleteMenu(0, MF_BYPOSITION));

      // find out from the registry where the favorites are located.
      if(RegOpenKey(HKEY_CURRENT_USER, _T("Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\User Shell Folders"), &hKey) != ERROR_SUCCESS)
      {
            TRACE0("Favorites folder not found\n");
            return 0;
      }
      dwSize = sizeof(sz);
      RegQueryValueEx(hKey, _T("Favorites"), NULL, NULL, (LPBYTE)sz, &dwSize);
      ExpandEnvironmentStrings(sz, szPath, MAX_PATH);
      RegCloseKey(hKey);

      BuildFavoritesMenu(szPath, 0, pMenu);
      return 0;
}
 int CWebView::BuildFavoritesMenu(LPCTSTR pszPath, int nStartPos, CMenu* pMenu)
{
      CString         strPath(pszPath);
      CString         strPath2;
      CString         str;
      WIN32_FIND_DATA wfd;
      HANDLE          h;
      int             nPos;
      int             nEndPos;
      int             nNewEndPos;
      int             nLastDir;
      TCHAR           buf[INTERNET_MAX_PATH_LENGTH];
      CStringArray    astrFavorites;
      CStringArray    astrDirs;
      CMenu*          pSubMenu;

      // make sure there's a trailing backslash
      if(strPath[strPath.GetLength() - 1] != _T('\\'))
            strPath += _T('\\');
      strPath2 = strPath;
      strPath += "*.*";

      // now scan the directory, first for .URL files and then for subdirectories
      // that may also contain .URL files
      h = FindFirstFile(strPath, &wfd);
      if(h != INVALID_HANDLE_VALUE)
      {
            nEndPos = nStartPos;
            do
            {
                  if((wfd.dwFileAttributes & (FILE_ATTRIBUTE_DIRECTORY|FILE_ATTRIBUTE_HIDDEN|FILE_ATTRIBUTE_SYSTEM))==0)
                  {
                        str = wfd.cFileName;
                        if(str.Right(4) == _T(".url"))
                        {
                              // an .URL file is formatted just like an .INI file, so we can
                              // use GetPrivateProfileString() to get the information we want
                              ::GetPrivateProfileString(_T("InternetShortcut"), _T("URL"),
                                                                    _T(""), buf, INTERNET_MAX_PATH_LENGTH,
                                                                    strPath2 + str);
                              str = str.Left(str.GetLength() - 4);

                              // scan through the array and perform an insertion sort
                              // to make sure the menu ends up in alphabetic order
                              for(nPos = nStartPos ; nPos < nEndPos ; ++nPos)
                              {
                                    if(str.CompareNoCase(astrFavorites[nPos]) < 0)
                                          break;
                              }
                              astrFavorites.InsertAt(nPos, str);
                              m_astrFavoriteURLs.InsertAt(nPos, buf);
                              ++nEndPos;
                        }
                  }
            } while(FindNextFile(h, &wfd));
            FindClose(h);
            // Now add these items to the menu
            for(nPos = nStartPos ; nPos < nEndPos ; ++nPos)
            {
                  pMenu->AppendMenu(MF_STRING | MF_ENABLED, 0xe00 + nPos, astrFavorites[nPos]);
            }


            // now that we've got all the .URL files, check the subdirectories for more
            nLastDir = 0;
            h = FindFirstFile(strPath, &wfd);
            ASSERT(h != INVALID_HANDLE_VALUE);
            do
            {
                  if(wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
                  {
                        // ignore the current and parent directory entries
                        if(lstrcmp(wfd.cFileName, _T(".")) == 0 || lstrcmp(wfd.cFileName, _T("..")) == 0)
                              continue;

                        for(nPos = 0 ; nPos < nLastDir ; ++nPos)
                        {
                              if(astrDirs[nPos].CompareNoCase(wfd.cFileName) > 0)
                                    break;
                        }
                        pSubMenu = new CMenu;
                        pSubMenu->CreatePopupMenu();

                        // call this function recursively.
                        nNewEndPos = BuildFavoritesMenu(strPath2 + wfd.cFileName, nEndPos, pSubMenu);
                        if(nNewEndPos != nEndPos)
                        {
                              // only intert a submenu if there are in fact .URL files in the subdirectory
                              nEndPos = nNewEndPos;
                              pMenu->InsertMenu(nPos, MF_BYPOSITION | MF_POPUP | MF_STRING, (UINT)pSubMenu->m_hMenu, wfd.cFileName);
                              pSubMenu->Detach();
                              astrDirs.InsertAt(nPos, wfd.cFileName);
                              ++nLastDir;
                        }
                        delete pSubMenu;
                  }
            } while(FindNextFile(h, &wfd));
            FindClose(h);
      }
      return nEndPos;
}
Does anyone know why this crashes when using in a MDI app and how can I get this to work?
0
Comment
Question by:cheapstr
  • 3
  • 2
5 Comments
 
LVL 48

Expert Comment

by:AlexFM
Comment Utility
What assertion and where does it happen?
0
 

Author Comment

by:cheapstr
Comment Utility
One thing I forgot to mention about the preceeding question: This MDI app uses 2 different document types, htmlview and richeditview, so of course uses different menu resources, IDR_MAINFRAME(when no documents), IDR_TEXT(when using richeditview), and IDR_WEB(when using browser). I'm thinking that this is the reason for crashing because the favorites menu is under IDR_WEB.  But I am fairly new to this and I'm not sure where or how to specify which menu resource to use in the  setup() and BuildFavoritesMenu() code.
0
 

Author Comment

by:cheapstr
Comment Utility
It happens as soon as setup(); is called. It says:

Debug Assertation Failed
project directory path...
f:\vs70builds\9466\vc\MFCATL\ship\atlmfc\include\afxwin1.inl
Line 875
0
 
LVL 48

Accepted Solution

by:
AlexFM earned 250 total points
Comment Utility
pMenu = GetMenu()->GetSubMenu(3);

If this code belongs to View class, GetMenu returns NULL. Menu belongs to MDI frame window. Try this:

pMenu = AfxGetMainWnd()->GetMenu()->GetSubMenu(3);
0
 

Author Comment

by:cheapstr
Comment Utility
thanks, I've been racking my brain on that for almost a week. worked perfectly!
0

Featured Post

Enabling OSINT in Activity Based Intelligence

Activity based intelligence (ABI) requires access to all available sources of data. Recorded Future allows analysts to observe structured data on the open, deep, and dark web.

Join & Write a Comment

Suggested Solutions

Title # Comments Views Activity
Running shell command from Access 3 63
Unix / Linux grid computing 5 125
if loop in java 3 114
only14 challenge 19 63
Introduction: Finishing the grid – keyboard support for arrow keys to manoeuvre, entering the numbers.  The PreTranslateMessage function is to be used to intercept and respond to keyboard events. Continuing from the fourth article about sudoku. …
Introduction: Ownerdraw of the grid button.  A singleton class implentation and usage. Continuing from the fifth article about sudoku.   Open the project in visual studio. Go to the class view – CGridButton should be visible as a class.  R…
This video will show you how to get GIT to work in Eclipse.   It will walk you through how to install the EGit plugin in eclipse and how to checkout an existing repository.
Illustrator's Shape Builder tool will let you combine shapes visually and interactively. This video shows the Mac version, but the tool works the same way in Windows. To follow along with this video, you can draw your own shapes or download the file…

771 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

14 Experts available now in Live!

Get 1:1 Help Now