/nt/addpm.c
C | 347 lines | 240 code | 42 blank | 65 comment | 47 complexity | 8c549c94e0affee1ecfeb84a76164d49 MD5 | raw file
- /* Add entries to the GNU Emacs Program Manager folder.
- Copyright (C) 1995, 2001-2022 Free Software Foundation, Inc.
- This file is part of GNU Emacs.
- GNU Emacs is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or (at
- your option) any later version.
- GNU Emacs is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. */
- /****************************************************************************
- *
- * Program: addpm (adds emacs to the Windows program manager)
- *
- * Usage:
- * argv[1] = install path for emacs
- *
- * argv[2] used to be an optional argument for setting the icon.
- * But now Emacs has a professional looking icon of its own.
- * If users really want to change it, they can go into the settings of
- * the shortcut that is created and do it there.
- */
- /* Use parts of shell API that were introduced by the merge of IE4
- into the desktop shell. If Windows 95 or NT4 users do not have IE4
- installed, then the DDE fallback for creating icons the Windows 3.1
- progman way will be used instead, but that is prone to lockups
- caused by other applications not servicing their message queues. */
- #define DEFER_MS_W32_H
- #include <config.h>
- #include <stdlib.h>
- #include <stdio.h>
- #include <malloc.h>
- /* MinGW64 barfs if _WIN32_IE is defined to anything below 0x0500. */
- #ifndef MINGW_W64
- # ifdef _WIN32_IE
- # undef _WIN32_IE
- # endif
- #define _WIN32_IE 0x0400
- #endif
- /* Request C Object macros for COM interfaces. */
- #define COBJMACROS 1
- #include <windows.h>
- #include <shlobj.h>
- #include <ddeml.h>
- #ifndef OLD_PATHS
- #include "../src/epaths.h"
- #endif
- HDDEDATA CALLBACK DdeCallback (UINT, UINT, HCONV, HSZ, HSZ, HDDEDATA, DWORD_PTR,
- DWORD_PTR);
- HDDEDATA CALLBACK
- DdeCallback (UINT uType, UINT uFmt, HCONV hconv,
- HSZ hsz1, HSZ hsz2, HDDEDATA hdata,
- DWORD_PTR dwData1, DWORD_PTR dwData2)
- {
- return ((HDDEDATA) NULL);
- }
- #define DdeCommand(str) \
- DdeClientTransaction ((LPBYTE)str, strlen (str)+1, conversation, (HSZ)NULL, \
- CF_TEXT, XTYP_EXECUTE, 30000, NULL)
- #define REG_ROOT "SOFTWARE\\GNU\\Emacs"
- #define REG_APP_PATH \
- "SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\App Paths\\emacs.exe"
- static struct entry
- {
- const char *name;
- const char *value;
- }
- env_vars[] =
- {
- #ifdef OLD_PATHS
- {"emacs_dir", NULL},
- {"EMACSLOADPATH", "%emacs_dir%/site-lisp;%emacs_dir%/../site-lisp;%emacs_dir%/lisp"},
- {"SHELL", "%emacs_dir%/bin/cmdproxy.exe"},
- {"EMACSDATA", "%emacs_dir%/etc"},
- {"EMACSPATH", "%emacs_dir%/bin"},
- /* We no longer set INFOPATH because Info-default-directory-list
- is then ignored. */
- /* {"INFOPATH", "%emacs_dir%/info"}, */
- {"EMACSDOC", "%emacs_dir%/etc"},
- {"TERM", "cmd"}
- #else /* !OLD_PATHS */
- {"emacs_dir", NULL},
- {"EMACSLOADPATH", PATH_SITELOADSEARCH ";" PATH_LOADSEARCH},
- {"SHELL", PATH_EXEC "/cmdproxy.exe"},
- {"EMACSDATA", PATH_DATA},
- {"EMACSPATH", PATH_EXEC},
- /* We no longer set INFOPATH because Info-default-directory-list
- is then ignored. */
- /* {"INFOPATH", "%emacs_dir%/info"}, */
- {"EMACSDOC", PATH_DOC},
- {"TERM", "cmd"}
- #endif
- };
- static void
- add_registry (const char *path)
- {
- HKEY hrootkey = NULL;
- int i;
- /* Record the location of Emacs to the App Paths key if we have
- sufficient permissions to do so. This helps Windows find emacs quickly
- if the user types emacs.exe in the "Run Program" dialog without having
- emacs on their path. Some applications also use the same registry key
- to discover the installation directory for programs they are looking for.
- Multiple installations cannot be handled by this method, but it does not
- affect the general operation of other installations of Emacs, and we
- are blindly overwriting the Start Menu entries already.
- */
- if (RegCreateKeyEx (HKEY_LOCAL_MACHINE, REG_APP_PATH, 0, NULL,
- REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL,
- &hrootkey, NULL) == ERROR_SUCCESS)
- {
- int len;
- char *emacs_path;
- len = strlen (path) + 15; /* \bin\emacs.exe + terminator. */
- emacs_path = (char *) alloca (len);
- sprintf (emacs_path, "%s\\bin\\emacs.exe", path);
- RegSetValueEx (hrootkey, NULL, 0, REG_EXPAND_SZ, emacs_path, len);
- RegCloseKey (hrootkey);
- }
- /* Previous versions relied on registry settings, but we do not need
- them any more. If registry settings are installed from a previous
- version, replace them to ensure they are the current settings.
- Otherwise, do nothing. */
- /* Check both the current user and the local machine to see if we
- have any resources. */
- if (RegOpenKeyEx (HKEY_LOCAL_MACHINE, REG_ROOT, 0,
- KEY_WRITE | KEY_QUERY_VALUE, &hrootkey) != ERROR_SUCCESS
- && RegOpenKeyEx (HKEY_CURRENT_USER, REG_ROOT, 0,
- KEY_WRITE | KEY_QUERY_VALUE, &hrootkey) != ERROR_SUCCESS)
- return;
- for (i = 0; i < (sizeof (env_vars) / sizeof (env_vars[0])); i++)
- {
- const char * value = env_vars[i].value ? env_vars[i].value : path;
- /* Replace only those settings that already exist. */
- if (RegQueryValueEx (hrootkey, env_vars[i].name, NULL,
- NULL, NULL, NULL) == ERROR_SUCCESS)
- RegSetValueEx (hrootkey, env_vars[i].name, 0, REG_EXPAND_SZ,
- value, lstrlen (value) + 1);
- }
- RegCloseKey (hrootkey);
- }
- int
- main (int argc, char *argv[])
- {
- char start_folder[MAX_PATH + 1];
- int shortcuts_created = 0;
- int com_available = 1;
- char modname[MAX_PATH];
- const char *prog_name;
- const char *emacs_path;
- char *p;
- int quiet = 0;
- HRESULT result;
- IShellLinkA *shortcut;
- /* If no args specified, use our location to set emacs_path. */
- if (argc > 1
- && (argv[1][0] == '/' || argv[1][0] == '-')
- && argv[1][1] == 'q')
- {
- quiet = 1;
- --argc;
- ++argv;
- }
- if (argc > 1)
- emacs_path = argv[1];
- else
- {
- if (!GetModuleFileName (NULL, modname, MAX_PATH) ||
- (p = strrchr (modname, '\\')) == NULL)
- {
- fprintf (stderr, "fatal error");
- exit (1);
- }
- *p = 0;
- /* Set emacs_path to emacs_dir if we are in "%emacs_dir%\bin". */
- if ((p = strrchr (modname, '\\')) && stricmp (p, "\\bin") == 0)
- {
- *p = 0;
- emacs_path = modname;
- }
- else
- {
- fprintf (stderr, "usage: addpm emacs_path\n");
- exit (1);
- }
- /* Tell user what we are going to do. */
- if (!quiet)
- {
- int result;
- const char install_msg[] = "Install Emacs at %s?\n";
- char msg[ MAX_PATH + sizeof (install_msg) ];
- sprintf (msg, install_msg, emacs_path);
- result = MessageBox (NULL, msg, "Install Emacs",
- MB_OKCANCEL | MB_ICONQUESTION);
- if (result != IDOK)
- {
- fprintf (stderr, "Install canceled\n");
- exit (1);
- }
- }
- }
- add_registry (emacs_path);
- prog_name = "runemacs.exe";
- /* Try to install globally. */
- if (!SUCCEEDED (CoInitialize (NULL))
- || !SUCCEEDED (CoCreateInstance (&CLSID_ShellLink, NULL,
- CLSCTX_INPROC_SERVER, &IID_IShellLinkA,
- (void **) &shortcut)))
- {
- com_available = 0;
- }
- if (com_available
- && SHGetSpecialFolderPath (NULL, start_folder, CSIDL_COMMON_PROGRAMS, 0))
- {
- if (strlen (start_folder) < (MAX_PATH - 20))
- {
- strcat (start_folder, "\\Gnu Emacs");
- if (CreateDirectory (start_folder, NULL)
- || GetLastError () == ERROR_ALREADY_EXISTS)
- {
- char full_emacs_path[MAX_PATH + 1];
- IPersistFile *lnk;
- strcat (start_folder, "\\Emacs.lnk");
- sprintf (full_emacs_path, "%s\\bin\\%s", emacs_path, prog_name);
- IShellLinkA_SetPath (shortcut, full_emacs_path);
- IShellLinkA_SetDescription (shortcut, "GNU Emacs");
- result = IShellLinkA_QueryInterface (shortcut, &IID_IPersistFile,
- (void **) &lnk);
- if (SUCCEEDED (result))
- {
- wchar_t unicode_path[MAX_PATH];
- MultiByteToWideChar (CP_ACP, 0, start_folder, -1,
- unicode_path, MAX_PATH);
- if (SUCCEEDED (IPersistFile_Save (lnk, unicode_path, TRUE)))
- shortcuts_created = 1;
- IPersistFile_Release (lnk);
- }
- }
- }
- }
- if (!shortcuts_created && com_available
- && SHGetSpecialFolderPath (NULL, start_folder, CSIDL_PROGRAMS, 0))
- {
- /* Ensure there is enough room for "...\GNU Emacs\Emacs.lnk". */
- if (strlen (start_folder) < (MAX_PATH - 20))
- {
- strcat (start_folder, "\\Gnu Emacs");
- if (CreateDirectory (start_folder, NULL)
- || GetLastError () == ERROR_ALREADY_EXISTS)
- {
- char full_emacs_path[MAX_PATH + 1];
- IPersistFile *lnk;
- strcat (start_folder, "\\Emacs.lnk");
- sprintf (full_emacs_path, "%s\\bin\\%s", emacs_path, prog_name);
- IShellLinkA_SetPath (shortcut, full_emacs_path);
- IShellLinkA_SetDescription (shortcut, "GNU Emacs");
- result = IShellLinkA_QueryInterface (shortcut, &IID_IPersistFile,
- (void **) &lnk);
- if (SUCCEEDED (result))
- {
- wchar_t unicode_path[MAX_PATH];
- MultiByteToWideChar (CP_ACP, 0, start_folder, -1,
- unicode_path, MAX_PATH);
- if (SUCCEEDED (IPersistFile_Save (lnk, unicode_path, TRUE)))
- shortcuts_created = 1;
- IPersistFile_Release (lnk);
- }
- }
- }
- }
- if (com_available)
- IShellLinkA_Release (shortcut);
- /* Need to call uninitialize, even if ComInitialize failed. */
- CoUninitialize ();
- /* Fallback on old DDE method if the above failed. */
- if (!shortcuts_created)
- {
- DWORD dde = 0;
- HCONV conversation;
- HSZ progman;
- char add_item[MAX_PATH*2 + 100];
- DdeInitialize (&dde, (PFNCALLBACK) DdeCallback, APPCMD_CLIENTONLY, 0);
- progman = DdeCreateStringHandle (dde, "PROGMAN", CP_WINANSI);
- conversation = DdeConnect (dde, progman, progman, NULL);
- if (conversation)
- {
- DdeCommand ("[CreateGroup (\"Gnu Emacs\")]");
- DdeCommand ("[ReplaceItem (Emacs)]");
- sprintf (add_item, "[AddItem (\"%s\\bin\\%s\", Emacs)]",
- emacs_path, prog_name);
- DdeCommand (add_item);
- DdeDisconnect (conversation);
- }
- DdeFreeStringHandle (dde, progman);
- DdeUninitialize (dde);
- }
- return 0;
- }