Solved

Programatically reading and writing Windows Shortcuts

Posted on 2003-10-29
3
487 Views
Last Modified: 2008-02-26
Is it possible to read the destination of a windows shortcut programatically.

eg link = fopen("myDoc.lnk", "r");
then read a string containing the shortcut destination from the file to give me C:\myDocs\myDoc.Doc.

From what I have seen *.lnk files are binary, not text, hence my question.

Thanks
0
Comment
Question by:penz
  • 2
3 Comments
 
LVL 86

Accepted Solution

by:
jkr earned 125 total points
ID: 9647371
Take the official approach:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/shellcc/platform/Shell/programmersguide/shell_int/shell_int_programming/shortcuts/shortcut.asp ("Shell Links") - this article comes with sample code:

HRESULT ResolveIt(HWND hwnd, LPCSTR lpszLinkFile, LPSTR lpszPath)
{
    HRESULT hres;
    IShellLink* psl;
    char szGotPath[MAX_PATH];
    char szDescription[MAX_PATH];
    WIN32_FIND_DATA wfd;
 
    *lpszPath = 0; // assume failure
 
    // Get a pointer to the IShellLink interface.
    hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER,
                            IID_IShellLink, (LPVOID*)&psl);
    if (SUCCEEDED(hres))
    {
        IPersistFile* ppf;
 
        // Get a pointer to the IPersistFile interface.
        hres = psl->QueryInterface(IID_IPersistFile, (void**)&ppf);
         
        if (SUCCEEDED(hres))
        {
            WCHAR wsz[MAX_PATH];
 
            // Ensure that the string is Unicode.
            MultiByteToWideChar(CP_ACP, 0, lpszLinkFile, -1, wsz, MAX_PATH);
 
            // TODO: Check return value from MultiByteWideChar to ensure
                     success.
 
            // Load the shortcut.
            hres = ppf->Load(wsz, STGM_READ);
           
            if (SUCCEEDED(hres))
            {
                // Resolve the link.
                hres = psl->Resolve(hwnd, 0);

                if (SUCCEEDED(hres))
                {
                    // Get the path to the link target.
                    hres = psl->GetPath(szGotPath,
                                        MAX_PATH,
                                        (WIN32_FIND_DATA*)&wfd,
                                        SLGP_SHORTPATH);

                    if (SUCCEEDED(hres))
                    {
                        // Get the description of the target.
                        hres = psl->GetDescription(szDescription, MAX_PATH);

                        if (SUCCEEDED(hres))
                        {
                            hres = StringCbCopy(lpszPath, sizeof(lpszPath),
                                                szGotPath);
                            if (SUCCEEDED(hres))
                            {
                                // Handle success
                            }
                            else
                                // application-defined function
                                HandleErr(hres);
                        }
                    }
                }
            }

            // Release the pointer to the IPersistFile interface.
            ppf->Release();
        }

        // Release the pointer to the IShellLink interface.
        psl->Release();
    }
    return hres;
}
0
 
LVL 2

Author Comment

by:penz
ID: 9647478
Thanks for the quick answer
0
 
LVL 86

Expert Comment

by:jkr
ID: 9647486
You're most welcome :o)
0

Featured Post

Gigs: Get Your Project Delivered by an Expert

Select from freelancers specializing in everything from database administration to programming, who have proven themselves as experts in their field. Hire the best, collaborate easily, pay securely and get projects done right.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Article by: SunnyDark
This article's goal is to present you with an easy to use XML wrapper for C++ and also present some interesting techniques that you might use with MS C++. The reason I built this class is to ease the pain of using XML files with C++, since there is…
  Included as part of the C++ Standard Template Library (STL) is a collection of generic containers. Each of these containers serves a different purpose and has different pros and cons. It is often difficult to decide which container to use and …
The goal of the video will be to teach the user the concept of local variables and scope. An example of a locally defined variable will be given as well as an explanation of what scope is in C++. The local variable and concept of scope will be relat…
The viewer will be introduced to the member functions push_back and pop_back of the vector class. The video will teach the difference between the two as well as how to use each one along with its functionality.

813 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

12 Experts available now in Live!

Get 1:1 Help Now