createlink.c File Reference

#include "appwiz.h"
#include <commctrl.h>
#include <shellapi.h>
#include <strsafe.h>
#include <shlwapi_undoc.h>
#include "../../win32/shell32/shresdef.h"

Include dependency graph for createlink.c:

Go to the source code of this file.

Functions
BOOL	IsShortcut (HKEY hKey)
BOOL	IsExtensionAShortcut (LPWSTR lpExtension)
BOOL	CreateShortcut (PCREATE_LINK_CONTEXT pContext)
BOOL	CreateInternetShortcut (PCREATE_LINK_CONTEXT pContext)
BOOL	IsInternetLocation (LPCWSTR pszLocation)
void	DoConvertNameForFileSystem (LPWSTR szName)
BOOL	DoValidateShortcutName (PCREATE_LINK_CONTEXT pContext)
INT_PTR CALLBACK	WelcomeDlgProc (HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)
INT_PTR CALLBACK	FinishDlgProc (HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)
static int CALLBACK	PropSheetProc (HWND hwndDlg, UINT uMsg, LPARAM lParam)
LONG CALLBACK	ShowCreateShortcutWizard (HWND hwndCPl, LPCWSTR szPath)
LONG CALLBACK	NewLinkHereW (HWND hwndCPl, UINT uMsg, LPARAM lParam1, LPARAM lParam2)
LONG CALLBACK	NewLinkHereA (HWND hwndCPl, UINT uMsg, LPARAM lParam1, LPARAM lParam2)

Function Documentation

CreateInternetShortcut()

BOOL CreateInternetShortcut

(

PCREATE_LINK_CONTEXT

pContext

)

Definition at line 121 of file createlink.c.

{
    IUniformResourceLocatorW *pURL = NULL;
    IPersistFile *pPersistFile = NULL;
    HRESULT hr;
    WCHAR szPath[MAX_PATH];
    GetFullPathNameW(pContext->szLinkName, _countof(szPath), szPath, NULL);
 
    hr = CoCreateInstance(&CLSID_InternetShortcut, NULL, CLSCTX_ALL,
                          &IID_IUniformResourceLocatorW, (void **)&pURL);
    if (FAILED(hr))
        return FALSE;
 
    hr = IUnknown_QueryInterface(pURL, &IID_IPersistFile, (void **)&pPersistFile);
    if (FAILED(hr))
    {
        IUnknown_Release(pURL);
        return FALSE;
    }
 
    pURL->lpVtbl->SetURL(pURL, pContext->szTarget, 0);
 
    hr = pPersistFile->lpVtbl->Save(pPersistFile, szPath, TRUE);
 
    IUnknown_Release(pPersistFile);
    IUnknown_Release(pURL);
 
    return SUCCEEDED(hr);
}

Referenced by FinishDlgProc().

CreateShortcut()

BOOL CreateShortcut

(

PCREATE_LINK_CONTEXT

pContext

)

Definition at line 77 of file createlink.c.

{
    IShellLinkW *pShellLink;
    IPersistFile *pPersistFile;
    HRESULT hr;
 
    hr = CoCreateInstance(&CLSID_ShellLink, NULL, CLSCTX_ALL, &IID_IShellLinkW, (void**)&pShellLink);
    if (FAILED(hr))
        return FALSE;
 
    hr = IUnknown_QueryInterface(pShellLink, &IID_IPersistFile, (void**)&pPersistFile);
    if (FAILED(hr))
    {
        IUnknown_Release(pShellLink);
        return FALSE;
    }
 
    if (IsExtensionAShortcut(PathFindExtensionW(pContext->szTarget)))
    {
        hr = pPersistFile->lpVtbl->Load(pPersistFile, (LPCOLESTR)pContext->szTarget, STGM_READ);
    }
    else
    {
        if (pContext->pidlTarget)
            pShellLink->lpVtbl->SetIDList(pShellLink, pContext->pidlTarget);
        else
            pShellLink->lpVtbl->SetPath(pShellLink, pContext->szTarget);
 
        if (pContext->szArguments[0])
            pShellLink->lpVtbl->SetArguments(pShellLink, pContext->szArguments);
 
        if (pContext->szDescription[0])
            pShellLink->lpVtbl->SetDescription(pShellLink, pContext->szDescription);
    }
 
    if (SUCCEEDED(hr))
        hr = pPersistFile->lpVtbl->Save(pPersistFile, pContext->szLinkName, TRUE);
 
    IUnknown_Release(pPersistFile);
    IUnknown_Release(pShellLink);
    return SUCCEEDED(hr);
}

Referenced by FinishDlgProc().

DoConvertNameForFileSystem()

void DoConvertNameForFileSystem

(

LPWSTR

szName

)

Definition at line 158 of file createlink.c.

{
    LPWSTR pch1, pch2;
    for (pch1 = pch2 = szName; *pch1; ++pch1)
    {
        if (wcschr(L"\\/:*?\"<>|", *pch1) != NULL)
        {
            /* *pch1 is an invalid character */
            continue;
        }
        *pch2 = *pch1;
        ++pch2;
    }
    *pch2 = 0;
}

Referenced by FinishDlgProc().

DoValidateShortcutName()

BOOL DoValidateShortcutName

(

PCREATE_LINK_CONTEXT

pContext

)

Definition at line 175 of file createlink.c.

{
    SIZE_T cch;
    LPCWSTR pch, pszName = pContext->szDescription;
 
    if (!pszName || !pszName[0])
        return FALSE;
 
    cch = wcslen(pContext->szOrigin) + wcslen(pszName) + 1;
    if (cch >= MAX_PATH)
        return FALSE;
 
    pch = pszName;
    for (pch = pszName; *pch; ++pch)
    {
        if (wcschr(L"\\/:*?\"<>|", *pch) != NULL)
        {
            /* *pch is an invalid character */
            return FALSE;
        }
    }
 
    return TRUE;
}

Referenced by FinishDlgProc().

FinishDlgProc()

INT_PTR CALLBACK FinishDlgProc	(	HWND	hwndDlg,
		UINT	uMsg,
		WPARAM	wParam,
		LPARAM	lParam
	)

Definition at line 369 of file createlink.c.

{
    LPPROPSHEETPAGEW ppsp;
    PCREATE_LINK_CONTEXT pContext;
    LPPSHNOTIFY lppsn;
    WCHAR szText[MAX_PATH], szPath[MAX_PATH];
    WCHAR szMessage[128];
 
    switch(uMsg)
    {
        case WM_INITDIALOG:
            ppsp = (LPPROPSHEETPAGEW)lParam;
            pContext = (PCREATE_LINK_CONTEXT) ppsp->lParam;
            SetWindowLongPtr(hwndDlg, DWLP_USER, (LONG_PTR)pContext);
            PropSheet_SetWizButtons(GetParent(hwndDlg), PSWIZB_BACK | PSWIZB_FINISH);
            break;
        case WM_COMMAND:
            switch(HIWORD(wParam))
            {
                case EN_CHANGE:
                    if (SendDlgItemMessage(hwndDlg, IDC_SHORTCUT_NAME, WM_GETTEXTLENGTH, 0, 0))
                    {
                        GetDlgItemTextW(hwndDlg, IDC_SHORTCUT_NAME, szText, _countof(szText));
                        StrTrimW(szText, L" \t");
                        if (szText[0])
                            PropSheet_SetWizButtons(GetParent(hwndDlg), PSWIZB_BACK | PSWIZB_FINISH);
                        else
                            PropSheet_SetWizButtons(GetParent(hwndDlg), PSWIZB_BACK);
                    }
                    else
                    {
                        PropSheet_SetWizButtons(GetParent(hwndDlg), PSWIZB_BACK);
                    }
                    break;
            }
            break;
        case WM_NOTIFY:
            lppsn  = (LPPSHNOTIFY) lParam;
            pContext = (PCREATE_LINK_CONTEXT) GetWindowLongPtr(hwndDlg, DWLP_USER);
            if (lppsn->hdr.code == PSN_SETACTIVE)
            {
                /* Remove invalid characters */
                DoConvertNameForFileSystem(pContext->szDescription);
                PathCleanupSpec(NULL, pContext->szDescription);
 
                /* Is it empty? (rare case) */
                if (!pContext->szDescription[0])
                {
                    HMODULE hShell32 = GetModuleHandleW(L"shell32.dll");
                    LoadStringW(hShell32, IDS_NEWITEMFORMAT, szText, _countof(szText));
                    LoadStringW(hShell32, IDS_LNK_FILE, szMessage, _countof(szMessage));
                    StringCchPrintfW(pContext->szDescription, _countof(pContext->szDescription),
                                     szText, szMessage);
                }
 
                /* Build a path from szOldFile */
                StringCchCopyW(szText, _countof(szText), pContext->szOldFile);
                PathRemoveFileSpecW(szText);
 
                /* Rename duplicate if necessary */
                PathAddExtensionW(pContext->szDescription,
                                  (IsInternetLocation(pContext->szTarget) ? L".url" : L".lnk"));
                PathYetAnotherMakeUniqueName(szPath, szText, NULL, pContext->szDescription);
                StringCchCopyW(pContext->szDescription, _countof(pContext->szDescription),
                               PathFindFileNameW(szPath));
                PathRemoveExtensionW(pContext->szDescription);
 
                SetDlgItemTextW(hwndDlg, IDC_SHORTCUT_NAME, pContext->szDescription);
                SendDlgItemMessageW(hwndDlg, IDC_SHORTCUT_NAME, EM_SETSEL, 0, -1);
                SetFocus(GetDlgItem(hwndDlg, IDC_SHORTCUT_NAME));
            }
            else if (lppsn->hdr.code == PSN_WIZFINISH)
            {
                GetDlgItemTextW(hwndDlg, IDC_SHORTCUT_NAME, pContext->szDescription, _countof(pContext->szDescription));
                StrTrimW(pContext->szDescription, L" \t");
 
                if (!DoValidateShortcutName(pContext))
                {
                    SendDlgItemMessageW(hwndDlg, IDC_SHORTCUT_NAME, EM_SETSEL, 0, -1);
 
                    LoadStringW(hApplet, IDS_INVALID_NAME, szMessage, _countof(szMessage));
                    MessageBoxW(hwndDlg, szMessage, NULL, MB_ICONERROR);
 
                    /* prevent the wizard to go next */
                    SetWindowLongPtr(hwndDlg, DWLP_MSGRESULT, -1);
                    return TRUE;
                }
 
                /* if old shortcut file exists, then delete it now */
                DeleteFileW(pContext->szOldFile);
                SHChangeNotify(SHCNE_DELETE, SHCNF_PATHW, pContext->szOldFile, NULL);
 
                if (IsInternetLocation(pContext->szTarget))
                {
                    /* internet */
                    StringCchCopyW(pContext->szLinkName, _countof(pContext->szLinkName),
                                   pContext->szOrigin);
                    PathAppendW(pContext->szLinkName, pContext->szDescription);
 
                    /* change extension if any */
                    PathRemoveExtensionW(pContext->szLinkName);
                    PathAddExtensionW(pContext->szLinkName, L".url");
 
                    if (!CreateInternetShortcut(pContext))
                    {
                        LoadStringW(hApplet, IDS_CANTMAKEINETSHORTCUT, szMessage, _countof(szMessage));
                        MessageBoxW(hwndDlg, szMessage, NULL, MB_ICONERROR);
                    }
                }
                else
                {
                    /* file */
                    StringCchCopyW(pContext->szLinkName, _countof(pContext->szLinkName),
                                   pContext->szOrigin);
                    PathAppendW(pContext->szLinkName, pContext->szDescription);
 
                    /* change extension if any */
                    PathRemoveExtensionW(pContext->szLinkName);
                    PathAddExtensionW(pContext->szLinkName, L".lnk");
 
                    /* Don't set a comment */
                    pContext->szDescription[0] = UNICODE_NULL;
 
                    if (!CreateShortcut(pContext))
                    {
                        WCHAR szMessage[128];
                        LoadStringW(hApplet, IDS_CANTMAKESHORTCUT, szMessage, _countof(szMessage));
                        MessageBoxW(hwndDlg, szMessage, NULL, MB_ICONERROR);
                    }
                }
            }
            else if (lppsn->hdr.code == PSN_RESET && !lppsn->lParam)
            {
                /* The user has clicked [Cancel] */
                DeleteFileW(pContext->szOldFile);
                SHChangeNotify(SHCNE_DELETE, SHCNF_PATHW, pContext->szOldFile, NULL);
            }
            break;
    }
    return FALSE;
}

Referenced by ShowCreateShortcutWizard().

IsExtensionAShortcut()

BOOL IsExtensionAShortcut

(

LPWSTR

lpExtension

)

Definition at line 38 of file createlink.c.

{
    HKEY hKey;
    WCHAR Buffer[100];
    DWORD Size;
    DWORD Type;
 
    if (RegOpenKeyExW(HKEY_CLASSES_ROOT, lpExtension, 0, KEY_READ, &hKey) != ERROR_SUCCESS)
        return FALSE;
 
    if (IsShortcut(hKey))
    {
        RegCloseKey(hKey);
        return TRUE;
    }
 
    Size = sizeof(Buffer);
    if (RegQueryValueEx(hKey, NULL, NULL, &Type, (LPBYTE)Buffer, &Size) != ERROR_SUCCESS || Type != REG_SZ)
    {
        RegCloseKey(hKey);
        return FALSE;
    }
 
    RegCloseKey(hKey);
 
    if (RegOpenKeyExW(HKEY_CLASSES_ROOT, Buffer, 0, KEY_READ, &hKey) != ERROR_SUCCESS)
        return FALSE;
 
    if (IsShortcut(hKey))
    {
        RegCloseKey(hKey);
        return TRUE;
    }
 
    RegCloseKey(hKey);
    return FALSE;
}

Referenced by CreateShortcut().

IsInternetLocation()

BOOL IsInternetLocation

(

LPCWSTR

pszLocation

)

Definition at line 151 of file createlink.c.

{
    return (PathIsURLW(pszLocation) || wcsstr(pszLocation, L"www.") == pszLocation);
}

Referenced by FinishDlgProc(), and WelcomeDlgProc().

IsShortcut()

BOOL IsShortcut

(

HKEY

hKey

)

Definition at line 21 of file createlink.c.

{
    WCHAR Value[10];
    DWORD Size;
    DWORD Type;
 
    Size = sizeof(Value);
    if (RegQueryValueExW(hKey, L"IsShortcut", NULL, &Type, (LPBYTE)Value, &Size) != ERROR_SUCCESS)
        return FALSE;
 
    if (Type != REG_SZ)
        return FALSE;
 
    return (_wcsicmp(Value, L"yes") == 0);
}

Referenced by IsExtensionAShortcut().

NewLinkHereA()

LONG CALLBACK NewLinkHereA	(	HWND	hwndCPl,
		UINT	uMsg,
		LPARAM	lParam1,
		LPARAM	lParam2
	)

Definition at line 646 of file createlink.c.

{
    WCHAR szFile[MAX_PATH];
 
    if (MultiByteToWideChar(CP_ACP, 0, (LPCSTR)lParam1, -1, szFile, _countof(szFile)))
        return NewLinkHereW(hwndCPl, uMsg, (LPARAM)szFile, lParam2);
    return -1;
}

NewLinkHereW()

LONG CALLBACK NewLinkHereW	(	HWND	hwndCPl,
		UINT	uMsg,
		LPARAM	lParam1,
		LPARAM	lParam2
	)

Definition at line 638 of file createlink.c.

{
    InitCommonControls();
    return ShowCreateShortcutWizard(hwndCPl, (LPCWSTR)lParam1);
}

Referenced by NewLinkHereA().

PropSheetProc()

static int CALLBACK PropSheetProc ( HWND  hwndDlg, UINT  uMsg, LPARAM  lParam  )

static

Definition at line 515 of file createlink.c.

{
    // NOTE: This callback is needed to set large icon correctly.
    HICON hIcon;
    switch (uMsg)
    {
        case PSCB_INITIALIZED:
        {
            hIcon = LoadIconW(hApplet, MAKEINTRESOURCEW(IDI_APPINETICO));
            SendMessageW(hwndDlg, WM_SETICON, ICON_BIG, (LPARAM)hIcon);
            break;
        }
    }
    return 0;
}

Referenced by ShowCreateShortcutWizard().

ShowCreateShortcutWizard()

LONG CALLBACK ShowCreateShortcutWizard	(	HWND	hwndCPl,
		LPCWSTR	szPath
	)

Definition at line 532 of file createlink.c.

{
    PROPSHEETHEADERW psh;
    HPROPSHEETPAGE ahpsp[2];
    PROPSHEETPAGE psp;
    UINT nPages = 0;
    UINT nLength;
    PCREATE_LINK_CONTEXT pContext;
    WCHAR szMessage[128];
    LPWSTR pch;
 
    pContext = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*pContext));
    if (!pContext)
    {
        /* no memory */
        LoadStringW(hApplet, IDS_NO_MEMORY, szMessage, _countof(szMessage));
        MessageBoxW(hwndCPl, szMessage, NULL, MB_ICONERROR);
        return FALSE;
    }
 
    nLength = wcslen(szPath);
    if (!nLength)
    {
        HeapFree(GetProcessHeap(), 0, pContext);
 
        /* no directory given */
        LoadStringW(hApplet, IDS_NO_DIRECTORY, szMessage, _countof(szMessage));
        MessageBoxW(hwndCPl, szMessage, NULL, MB_ICONERROR);
        return FALSE;
    }
 
    if (!PathFileExistsW(szPath))
    {
        HeapFree(GetProcessHeap(), 0, pContext);
 
        /* invalid path */
        LoadStringW(hApplet, IDS_INVALID_PATH, szMessage, _countof(szMessage));
        MessageBoxW(hwndCPl, szMessage, NULL, MB_ICONERROR);
        return FALSE;
    }
 
    /* build the pContext->szOrigin and pContext->szOldFile */
    if (PathIsDirectoryW(szPath))
    {
        StringCchCopyW(pContext->szOrigin, _countof(pContext->szOrigin), szPath);
        pContext->szOldFile[0] = 0;
    }
    else
    {
        StringCchCopyW(pContext->szOrigin, _countof(pContext->szOrigin), szPath);
        pch = PathFindFileNameW(pContext->szOrigin);
        if (pch && *pch)
            *pch = 0;
 
        StringCchCopyW(pContext->szOldFile, _countof(pContext->szOldFile), szPath);
 
        pch = PathFindFileNameW(szPath);
        if (pch && *pch)
        {
            /* build szDescription */
            StringCchCopyW(pContext->szDescription, _countof(pContext->szDescription), pch);
            *pch = 0;
 
            pch = PathFindExtensionW(pContext->szDescription);
            *pch = 0;
        }
    }
    PathAddBackslashW(pContext->szOrigin);
 
    /* Create the Welcome page */
    psp.dwSize = sizeof(PROPSHEETPAGE);
    psp.dwFlags = PSP_DEFAULT | PSP_HIDEHEADER;
    psp.hInstance = hApplet;
    psp.pfnDlgProc = WelcomeDlgProc;
    psp.pszTemplate = MAKEINTRESOURCEW(IDD_SHORTCUT_LOCATION);
    psp.lParam = (LPARAM)pContext;
    ahpsp[nPages++] = CreatePropertySheetPage(&psp);
 
    /* Create the Finish page */
    psp.dwFlags = PSP_DEFAULT | PSP_HIDEHEADER;
    psp.pfnDlgProc = FinishDlgProc;
    psp.pszTemplate = MAKEINTRESOURCEW(IDD_SHORTCUT_FINISH);
    ahpsp[nPages++] = CreatePropertySheetPage(&psp);
 
    /* Create the property sheet */
    psh.dwSize = sizeof(PROPSHEETHEADER);
    psh.dwFlags = PSH_WIZARD97 | PSH_WATERMARK | PSH_USEICONID | PSH_USECALLBACK;
    psh.hInstance = hApplet;
    psh.pszIcon = MAKEINTRESOURCEW(IDI_APPINETICO);
    psh.hwndParent = NULL;
    psh.nPages = nPages;
    psh.nStartPage = 0;
    psh.phpage = ahpsp;
    psh.pszbmWatermark = MAKEINTRESOURCEW(IDB_SHORTCUT);
    psh.pfnCallback = PropSheetProc;
 
    /* Display the wizard */
    PropertySheet(&psh);
 
    CoTaskMemFree(pContext->pidlTarget);
    HeapFree(GetProcessHeap(), 0, pContext);
    return TRUE;
}

Referenced by NewLinkHereW().

WelcomeDlgProc()

INT_PTR CALLBACK WelcomeDlgProc	(	HWND	hwndDlg,
		UINT	uMsg,
		WPARAM	wParam,
		LPARAM	lParam
	)

Definition at line 202 of file createlink.c.

{
    LPPROPSHEETPAGEW ppsp;
    PCREATE_LINK_CONTEXT pContext = (PCREATE_LINK_CONTEXT)GetWindowLongPtr(hwndDlg, DWLP_USER);
    LPPSHNOTIFY lppsn;
    WCHAR szPath[MAX_PATH * 2], szDisplayName[MAX_PATH];
    WCHAR szDesc[100];
    WCHAR szTitle[100];
    BROWSEINFOW brws;
    LPITEMIDLIST pidllist;
    SHFILEINFOW FileInfo;
 
    switch(uMsg)
    {
        case WM_INITDIALOG:
            ppsp = (LPPROPSHEETPAGEW)lParam;
            pContext = (PCREATE_LINK_CONTEXT) ppsp->lParam;
            SetWindowLongPtr(hwndDlg, DWLP_USER, (LONG_PTR)pContext);
            PropSheet_SetWizButtons(GetParent(hwndDlg), 0);
            SHAutoComplete(GetDlgItem(hwndDlg, IDC_LINK_LOCATION), SHACF_DEFAULT);
            break;
        case WM_COMMAND:
        {
            switch (LOWORD(wParam))
            {
                case IDC_LINK_LOCATION:
                {
                    if (HIWORD(wParam) == EN_CHANGE)
                    {
                        /* The text was changed by user. Invalidate pidlTarget. */
                        if (pContext->pidlTarget)
                        {
                            CoTaskMemFree(pContext->pidlTarget);
                            pContext->pidlTarget = NULL;
                        }
 
                        if (SendDlgItemMessage(hwndDlg, IDC_LINK_LOCATION, WM_GETTEXTLENGTH, 0, 0))
                            PropSheet_SetWizButtons(GetParent(hwndDlg), PSWIZB_NEXT);
                        else
                            PropSheet_SetWizButtons(GetParent(hwndDlg), 0);
                    }
                    break;
                }
                case IDC_SHORTCUT_BROWSE:
                {
                    LoadStringW(hApplet, IDS_BROWSE_FOR_TARGET, szTitle, _countof(szTitle));
                    ZeroMemory(&brws, sizeof(brws));
                    brws.hwndOwner = hwndDlg;
                    brws.pidlRoot = NULL;
                    brws.pszDisplayName = szDisplayName;
                    brws.lpszTitle = szTitle;
                    brws.ulFlags = BIF_BROWSEINCLUDEFILES | BIF_NEWDIALOGSTYLE | BIF_SHAREABLE;
                    brws.lpfn = NULL;
                    pidllist = SHBrowseForFolderW(&brws);
                    if (!pidllist)
                        break;
 
                    StringCchCopyW(pContext->szDescription, _countof(pContext->szDescription),
                                   szDisplayName);
 
                    SHGetPathFromIDListW(pidllist, szPath);
 
                    if (PathFileExistsW(szPath) && !PathIsRelativeW(szPath))
                        SetDlgItemTextW(hwndDlg, IDC_LINK_LOCATION, szPath);
                    else
                        SetDlgItemTextW(hwndDlg, IDC_LINK_LOCATION, szDisplayName);
 
                    SendDlgItemMessageW(hwndDlg, IDC_LINK_LOCATION, EM_SETSEL, 0, -1);
 
                    if (pContext->pidlTarget)
                        CoTaskMemFree(pContext->pidlTarget);
                    pContext->pidlTarget = pidllist;
                    break;
                }
            }
            break;
        case WM_NOTIFY:
            lppsn  = (LPPSHNOTIFY) lParam;
            if (lppsn->hdr.code == PSN_SETACTIVE)
            {
                SetDlgItemTextW(hwndDlg, IDC_LINK_LOCATION, pContext->szTarget);
            }
            else if (lppsn->hdr.code == PSN_WIZNEXT)
            {
                GetDlgItemTextW(hwndDlg, IDC_LINK_LOCATION, pContext->szTarget, _countof(pContext->szTarget));
                StrTrimW(pContext->szTarget, L" \t");
                ExpandEnvironmentStringsW(pContext->szTarget, szPath, _countof(szPath));
 
                if (IsInternetLocation(szPath)) /* The internet location */
                {
                    WCHAR szName[128];
                    LoadStringW(hApplet, IDS_NEW_INTERNET_SHORTCUT, szName, _countof(szName));
                    StringCchCopyW(pContext->szDescription, _countof(pContext->szDescription), szName);
                    pContext->szArguments[0] = 0;
                    return FALSE;
                }
 
                if (pContext->pidlTarget) /* The result of SHBrowseForFolderW */
                {
                    SHGetPathFromIDListW(pContext->pidlTarget, pContext->szTarget);
                    pContext->szArguments[0] = 0;
                    return FALSE;
                }
 
                /* Otherwise, the target is a command line or pathname */
 
                /* Split and build args */
                LPWSTR pszArgs = PathGetArgsW(szPath);
                if (pszArgs && pszArgs > szPath)
                {
                    PathRemoveArgsW(szPath);
                    StringCchCopyW(pContext->szArguments, _countof(pContext->szArguments), pszArgs);
                }
                else
                {
                    pContext->szArguments[0] = 0;
                }
 
                /* Find the file */
                if (!PathFindOnPathExW(szPath, NULL, WHICH_DEFAULT) &&
                    !PathFileExistsW(szPath))
                {
                    /* Not found */
                    SendDlgItemMessageW(hwndDlg, IDC_LINK_LOCATION, EM_SETSEL, 0, -1);
 
                    LoadStringW(hApplet, IDS_CREATE_SHORTCUT, szDesc, _countof(szDesc));
                    LoadStringW(hApplet, IDS_ERROR_NOT_FOUND, szPath, _countof(szPath));
 
                    WCHAR szError[MAX_PATH + 100];
                    StringCchPrintfW(szError, _countof(szError), szPath, pContext->szTarget);
                    MessageBoxW(hwndDlg, szError, szDesc, MB_ICONERROR);
 
                    /* Prevent the wizard to go next */
                    SetWindowLongPtr(hwndDlg, DWLP_MSGRESULT, -1);
                    return TRUE;
                }
 
                /* Rebuild target */
                if (PathIsRelativeW(szPath))
                    GetFullPathNameW(szPath, _countof(pContext->szTarget), pContext->szTarget, NULL);
                else
                    StringCchCopyW(pContext->szTarget, _countof(pContext->szTarget), szPath);
 
                /* Get display name */
                FileInfo.szDisplayName[0] = UNICODE_NULL;
                if (SHGetFileInfoW(pContext->szTarget, 0, &FileInfo, sizeof(FileInfo), SHGFI_DISPLAYNAME))
                    StringCchCopyW(pContext->szDescription, _countof(pContext->szDescription), FileInfo.szDisplayName);
 
                break;
            }
            else if (lppsn->hdr.code == PSN_RESET && !lppsn->lParam)
            {
                /* The user has clicked [Cancel] */
                DeleteFileW(pContext->szOldFile);
                SHChangeNotify(SHCNE_DELETE, SHCNF_PATHW, pContext->szOldFile, NULL);
            }
            break;
        }
    }
    return FALSE;
}

Referenced by ShowCreateShortcutWizard().