Creating a Windows shortcut in C++
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Thread: Creating a Windows shortcut in C++

  1. #1
    Join Date
    May 2010
    Posts
    24

    Question Creating a Windows shortcut in C++

    Hi everyone,

    I have the following problem to solve:
    I have a configuration file that contains only a path (like C:/Program Files/install for instance). In this path, I have to unzip an Apache. I do not install Apache because the zip I have contains special configuration I need in my project.
    With the Apache unpacked, I have 2 things to do:
    1- Edit the httpd.conf file in order to contain the "unzip" path correctly
    2- Create a "start Apache" shortcut.

    The problem I have is exactly in the step 2. I just don't know how to create a shortcut from inside a C++. As most of you should know, this shortcut is not just an executable call. In my PC, the shortcut has the following meaningful info:

    Target: "C:\Program Files\Apache Software Foundation\Apache2.2\bin\httpd.exe" -w -f "C:\Program Files\Apache Software Foundation\Apache2.2\conf\httpd.conf" -d "C:\Program Files\Apache Software Foundation\Apache2.2\."
    Start in: "C:\Program Files\Apache Software Foundation\Apache2.2\"


    So, is it possible to create this shortcut?


    thanks in advance for your help

  2. #2
    Join Date
    Jan 2009
    Posts
    1,689

    Re: Creating a Windows shortcut in C++

    Why do you need to code this? Why can't you just create it normally?

    Are you trying to write an installer program or something? C++ is not meant for that and I don't think anyone does that. Most people use NSIS.

  3. #3
    Join Date
    Apr 2008
    Posts
    726

    Re: Creating a Windows shortcut in C++

    I found this:

    Code:
    /*
      -------------------------------------------------------------------
      Description:
        Creates the actual 'lnk' file (assumes COM has been initialized).
    
      Parameters:
        pszTargetfile    - File name of the link's target.
        pszTargetargs    - Command line arguments passed to link's target.
        pszLinkfile      - File name of the actual link file being created.
        pszDescription   - Description of the linked item.
        iShowmode        - ShowWindow() constant for the link's target.
        pszCurdir        - Working directory of the active link. 
        pszIconfile      - File name of the icon file used for the link.
        iIconindex       - Index of the icon in the icon file.
    
      Returns:
        HRESULT value >= 0 for success, < 0 for failure.
      --------------------------------------------------------------------
      */
      static HRESULT CreateShortCut(LPSTR pszTargetfile, LPSTR pszTargetargs,
                                    LPSTR pszLinkfile, LPSTR pszDescription, 
                                    int iShowmode, LPSTR pszCurdir, 
                                    LPSTR pszIconfile, int iIconindex)
      {
        HRESULT       hRes;                  /* Returned COM result code */
        IShellLink*   pShellLink;            /* IShellLink object pointer */
        IPersistFile* pPersistFile;          /* IPersistFile object pointer */
        WORD          wszLinkfile[MAX_PATH]; /* pszLinkfile as Unicode 
                                                string */
        int           iWideCharsWritten;     /* Number of wide characters 
                                                written */
    
        hRes = E_INVALIDARG;
        if (
             (pszTargetfile != NULL) && (strlen(pszTargetfile) > 0) &&
             (pszTargetargs != NULL) &&
             (pszLinkfile != NULL) && (strlen(pszLinkfile) > 0) &&
             (pszDescription != NULL) && 
             (iShowmode >= 0) &&
             (pszCurdir != NULL) && 
             (pszIconfile != NULL) &&
             (iIconindex >= 0)
           )
        {
          hRes = CoCreateInstance(
            &CLSID_ShellLink,     /* pre-defined CLSID of the IShellLink 
                                     object */
            NULL,                 /* pointer to parent interface if part of 
                                     aggregate */
            CLSCTX_INPROC_SERVER, /* caller and called code are in same 
                                     process */
            &IID_IShellLink,      /* pre-defined interface of the 
                                     IShellLink object */
            &pShellLink);         /* Returns a pointer to the IShellLink 
                                     object */
          if (SUCCEEDED(hRes))
          {
            /* Set the fields in the IShellLink object */
            hRes = pShellLink->lpVtbl->SetPath(pShellLink, 
                                                 pszTargetfile);
            hRes = pShellLink->lpVtbl->SetArguments(pShellLink, 
                                                  pszTargetargs);
            if (strlen(pszDescription) > 0)
            {
              hRes = pShellLink->lpVtbl->SetDescription(pShellLink, 
                                                      pszDescription);
            }
            if (iShowmode > 0)
            {
              hRes = pShellLink->lpVtbl->SetShowCmd(pShellLink, 
                                                           iShowmode);
            }
            if (strlen(pszCurdir) > 0)
            {
              hRes = pShellLink->lpVtbl->SetWorkingDirectory(pShellLink, 
                                                              pszCurdir);
            }
            if (strlen(pszIconfile) > 0 && iIconindex >= 0)
            {
              hRes = pShellLink->lpVtbl->SetIconLocation(pShellLink, 
                                                pszIconfile, iIconindex);
            }
    
            /* Use the IPersistFile object to save the shell link */
            hRes = pShellLink->lpVtbl->QueryInterface(
              pShellLink,                /* existing IShellLink object */
              &IID_IPersistFile,         /* pre-defined interface of the 
                                            IPersistFile object */
              &pPersistFile);            /* returns a pointer to the 
                                            IPersistFile object */
            if (SUCCEEDED(hRes))
            {
              iWideCharsWritten = MultiByteToWideChar(CP_ACP, 0, 
                                                   pszLinkfile, -1, 
                                                   wszLinkfile, MAX_PATH);
              hRes = pPersistFile->lpVtbl->Save(pPersistFile, 
                                                       wszLinkfile, TRUE);
              pPersistFile->lpVtbl->Release(pPersistFile);
            }
            pShellLink->lpVtbl->Release(pShellLink);
          }
    
        }
        return (hRes);
      }
    http://www.codeproject.com/KB/winsdk/makelink.aspx

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