Solved

Programatically reading and writing Windows Shortcuts

Posted on 2003-10-29
3
491 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
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 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

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

Often, when implementing a feature, you won't know how certain events should be handled at the point where they occur and you'd rather defer to the user of your function or class. For example, a XML parser will extract a tag from the source code, wh…
Many modern programming languages support the concept of a property -- a class member that combines characteristics of both a data member and a method.  These are sometimes called "smart fields" because you can add logic that is applied automaticall…
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 learn how to use the return statement in functions in C++. The video will also teach the user how to pass data to a function and have the function return data back for further processing.

695 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