From: ba0571 AT chlothar DOT bamberg DOT baynet DOT de (Michael Lemke)
Subject: How to create shortcut?
10 May 1998 08:54:47 -0700
Message-ID: <35559FEB.9542CF0B.cygnus.gnu-win32@mail.bamberg.baynet.de>
Reply-To: ai26 AT a400 DOT sternwarte DOT uni-erlangen DOT de
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To: gnu-win32 AT cygnus DOT com
Cc: michael AT sternwarte DOT uni-erlangen DOT de

This is not purely a gnuwin question but related:

How do I create a shortcut for a file?  I found the attached program
in one of the WIN32 API helpfiles but gcc doesn't like it.  I also
could not find which library exports the IShell stuff.

Is this the only way to make a shortcut?  Looks extremely cumbersome to
me.  Just to make it clear: I don't want a symbolic link but a real .LNK
file.

Anyway, here goes:

#include <windows.h>
// CreateLink - uses the shell's IShellLink and IPersistFile interfaces 
//   to create and store a shortcut to the specified object. 
// Returns the result of calling the member functions of the interfaces. 
// lpszPathObj - address of a buffer containing the path of the object 
// lpszPathLink - address of a buffer containing the path where the 
//   shell link is to be stored 
// lpszDesc - address of a buffer containing the description of the 
//   shell link 

 
HRESULT CreateLink(LPCSTR lpszPathObj, 
    LPSTR lpszPathLink, LPSTR lpszDesc) 
{ 
    HRESULT hres; 
    IShellLink* psl; 
 
    // Get a pointer to the IShellLink interface. 
    hres = CoCreateInstance(&CLSID_ShellLink, NULL, 
        CLSCTX_INPROC_SERVER, &IID_IShellLink, &psl); 
    if (SUCCEEDED(hres)) { 
        IPersistFile* ppf; 
 
        // Set the path to the shortcut target, and add the 
        // description. 
        psl->lpVtbl->SetPath(psl, lpszPathObj); 

        psl->lpVtbl->SetDescription(psl, lpszDesc); 
 
       // Query IShellLink for the IPersistFile interface for saving the 
       // shortcut in persistent storage. 
        hres = psl->lpVtbl->QueryInterface(psl, &IID_IPersistFile, 
            &ppf); 
 
        if (SUCCEEDED(hres)) { 
            WORD wsz[MAX_PATH]; 
 
            // Ensure that the string is ANSI. 
            MultiByteToWideChar(CP_ACP, 0, lpszPathLink, -1, 
                wsz, MAX_PATH); 

 
            // Save the link by calling IPersistFile::Save. 
            hres = ppf->lpVtbl->Save(ppf, wsz, TRUE); 
            ppf->lpVtbl->Release(ppf); 
        } 
        psl->lpVtbl->Release(psl); 
    } 
    return hres; 
} 


And that is what I get:

BASH.EXE-2.01$ gcc shortc.c
shortc.c: In function `CreateLink':
shortc.c:16: `IShellLink' undeclared (first use this function)
shortc.c:16: (Each undeclared identifier is reported only once
shortc.c:16: for each function it appears in.)
shortc.c:16: `psl' undeclared (first use this function)
shortc.c:19: `CLSID_ShellLink' undeclared (first use this function)
shortc.c:20: `CLSCTX_INPROC_SERVER' undeclared (first use this function)
shortc.c:20: `IID_IShellLink' undeclared (first use this function)
shortc.c:22: `IPersistFile' undeclared (first use this function)
shortc.c:22: `ppf' undeclared (first use this function)
shortc.c:32: `IID_IPersistFile' undeclared (first use this function)
BASH.EXE-2.01$


Thanks for ideas,
Michael

-- 
Michael Lemke
Sternwarte Bamberg, University of Erlangen-Nürnberg, Germany
(michael AT astro DOT as DOT utexas DOT edu or ai26 AT a400 DOT sternwarte DOT uni-erlangen DOT de)
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