Commit | Line | Data |
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73b0cd50 | 1 | /* Copyright (C) 2001-2011 |
62eda0e2 | 2 | Free Software Foundation, Inc. |
b65d8176 TTN |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
eef0be9e | 6 | GNU Emacs is free software: you can redistribute it and/or modify |
b65d8176 | 7 | it under the terms of the GNU General Public License as published by |
eef0be9e GM |
8 | the Free Software Foundation, either version 3 of the License, or |
9 | (at your option) any later version. | |
b65d8176 TTN |
10 | |
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
eef0be9e | 17 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
b65d8176 TTN |
18 | |
19 | ||
c911543b GV |
20 | /* |
21 | Simple program to start Emacs with its console window hidden. | |
22 | ||
23 | This program is provided purely for convenience, since most users will | |
24 | use Emacs in windowing (GUI) mode, and will not want to have an extra | |
25 | console window lying around. */ | |
26 | ||
662463d9 RS |
27 | /* |
28 | You may want to define this if you want to be able to install updated | |
29 | emacs binaries even when other users are using the current version. | |
30 | The problem with some file servers (notably Novell) is that an open | |
31 | file cannot be overwritten, deleted, or even renamed. So if someone | |
32 | is running emacs.exe already, you cannot install a newer version. | |
33 | By defining CHOOSE_NEWEST_EXE, you can name your new emacs.exe | |
34 | something else which matches "emacs*.exe", and runemacs will | |
4da0d3f7 | 35 | automatically select the newest emacs executable in the bin directory. |
662463d9 RS |
36 | (So you'll probably be able to delete the old version some hours/days |
37 | later). | |
38 | */ | |
39 | ||
40 | /* #define CHOOSE_NEWEST_EXE */ | |
41 | ||
c911543b GV |
42 | #include <windows.h> |
43 | #include <string.h> | |
44 | #include <malloc.h> | |
45 | ||
361358ea | 46 | static void set_user_model_id (void); |
ff90fbde | 47 | |
c911543b GV |
48 | int WINAPI |
49 | WinMain (HINSTANCE hSelf, HINSTANCE hPrev, LPSTR cmdline, int nShow) | |
50 | { | |
51 | STARTUPINFO start; | |
52 | SECURITY_ATTRIBUTES sec_attrs; | |
c911543b GV |
53 | PROCESS_INFORMATION child; |
54 | int wait_for_child = FALSE; | |
05c4be3c | 55 | DWORD priority_class = NORMAL_PRIORITY_CLASS; |
c911543b | 56 | DWORD ret_code = 0; |
662463d9 RS |
57 | char *new_cmdline; |
58 | char *p; | |
c911543b GV |
59 | char modname[MAX_PATH]; |
60 | ||
ff90fbde JR |
61 | set_user_model_id (); |
62 | ||
c911543b GV |
63 | if (!GetModuleFileName (NULL, modname, MAX_PATH)) |
64 | goto error; | |
65 | if ((p = strrchr (modname, '\\')) == NULL) | |
66 | goto error; | |
67 | *p = 0; | |
68 | ||
0ac7bf6c JR |
69 | new_cmdline = alloca (MAX_PATH + strlen (cmdline) + 3); |
70 | /* Quote executable name in case of spaces in the path. */ | |
71 | *new_cmdline = '"'; | |
72 | strcpy (new_cmdline + 1, modname); | |
c911543b | 73 | |
662463d9 | 74 | #ifdef CHOOSE_NEWEST_EXE |
c911543b | 75 | { |
662463d9 RS |
76 | /* Silly hack to allow new versions to be installed on |
77 | server even when current version is in use. */ | |
78 | ||
79 | char * best_name = alloca (MAX_PATH + 1); | |
80 | FILETIME best_time = {0,0}; | |
81 | WIN32_FIND_DATA wfd; | |
82 | HANDLE fh; | |
83 | p = new_cmdline + strlen (new_cmdline); | |
0ac7bf6c | 84 | strcpy (p, "\\emacs*.exe\" "); |
662463d9 RS |
85 | fh = FindFirstFile (new_cmdline, &wfd); |
86 | if (fh == INVALID_HANDLE_VALUE) | |
87 | goto error; | |
88 | do | |
89 | { | |
4da0d3f7 JB |
90 | if (wfd.ftLastWriteTime.dwHighDateTime > best_time.dwHighDateTime |
91 | || (wfd.ftLastWriteTime.dwHighDateTime == best_time.dwHighDateTime | |
92 | && wfd.ftLastWriteTime.dwLowDateTime > best_time.dwLowDateTime)) | |
93 | { | |
94 | best_time = wfd.ftLastWriteTime; | |
95 | strcpy (best_name, wfd.cFileName); | |
96 | } | |
662463d9 RS |
97 | } |
98 | while (FindNextFile (fh, &wfd)); | |
99 | FindClose (fh); | |
100 | *p++ = '\\'; | |
101 | strcpy (p, best_name); | |
102 | strcat (p, " "); | |
c911543b | 103 | } |
662463d9 | 104 | #else |
0ac7bf6c | 105 | strcat (new_cmdline, "\\emacs.exe\" "); |
662463d9 RS |
106 | #endif |
107 | ||
05c4be3c GV |
108 | /* Append original arguments if any; first look for arguments we |
109 | recognise (-wait, -high, and -low), and apply them ourselves. */ | |
110 | while (cmdline[0] == '-' || cmdline[0] == '/') | |
662463d9 | 111 | { |
05c4be3c GV |
112 | if (strncmp (cmdline+1, "wait", 4) == 0) |
113 | { | |
4da0d3f7 JB |
114 | wait_for_child = TRUE; |
115 | cmdline += 5; | |
116 | } | |
05c4be3c GV |
117 | else if (strncmp (cmdline+1, "high", 4) == 0) |
118 | { | |
119 | priority_class = HIGH_PRIORITY_CLASS; | |
120 | cmdline += 5; | |
121 | } | |
122 | else if (strncmp (cmdline+1, "low", 3) == 0) | |
123 | { | |
124 | priority_class = IDLE_PRIORITY_CLASS; | |
125 | cmdline += 4; | |
126 | } | |
127 | else | |
128 | break; | |
4da0d3f7 JB |
129 | /* Look for next argument. */ |
130 | while (*++cmdline == ' '); | |
05c4be3c | 131 | } |
4da0d3f7 | 132 | |
c911543b GV |
133 | strcat (new_cmdline, cmdline); |
134 | ||
662463d9 | 135 | /* Set emacs_dir variable if runemacs was in "%emacs_dir%\bin". */ |
c911543b | 136 | if ((p = strrchr (modname, '\\')) && stricmp (p, "\\bin") == 0) |
662463d9 RS |
137 | { |
138 | *p = 0; | |
139 | for (p = modname; *p; p++) | |
140 | if (*p == '\\') *p = '/'; | |
141 | SetEnvironmentVariable ("emacs_dir", modname); | |
142 | } | |
c911543b GV |
143 | |
144 | memset (&start, 0, sizeof (start)); | |
145 | start.cb = sizeof (start); | |
3bb69bbd | 146 | start.dwFlags = STARTF_USESHOWWINDOW | STARTF_USECOUNTCHARS; |
c911543b | 147 | start.wShowWindow = SW_HIDE; |
3bb69bbd JR |
148 | /* Ensure that we don't waste memory if the user has specified a huge |
149 | default screen buffer for command windows. */ | |
150 | start.dwXCountChars = 80; | |
151 | start.dwYCountChars = 25; | |
c911543b GV |
152 | |
153 | sec_attrs.nLength = sizeof (sec_attrs); | |
154 | sec_attrs.lpSecurityDescriptor = NULL; | |
155 | sec_attrs.bInheritHandle = FALSE; | |
156 | ||
05c4be3c | 157 | if (CreateProcess (NULL, new_cmdline, &sec_attrs, NULL, TRUE, priority_class, |
1e3c9713 | 158 | NULL, NULL, &start, &child)) |
c911543b GV |
159 | { |
160 | if (wait_for_child) | |
161 | { | |
162 | WaitForSingleObject (child.hProcess, INFINITE); | |
163 | GetExitCodeProcess (child.hProcess, &ret_code); | |
164 | } | |
165 | CloseHandle (child.hThread); | |
166 | CloseHandle (child.hProcess); | |
167 | } | |
168 | else | |
169 | goto error; | |
170 | return (int) ret_code; | |
171 | ||
172 | error: | |
173 | MessageBox (NULL, "Could not start Emacs.", "Error", MB_ICONSTOP); | |
174 | return 1; | |
175 | } | |
ab5796a9 | 176 | |
7c3320d8 JB |
177 | void |
178 | set_user_model_id (void) | |
ff90fbde JR |
179 | { |
180 | HMODULE shell; | |
0a3472c7 | 181 | HRESULT (WINAPI * set_user_model) (wchar_t * id); |
ff90fbde JR |
182 | |
183 | /* On Windows 7 and later, we need to set the user model ID | |
184 | to associate emacsclient launched files with Emacs frames | |
185 | in the UI. */ | |
186 | shell = LoadLibrary ("shell32.dll"); | |
187 | if (shell) | |
188 | { | |
189 | set_user_model | |
190 | = (void *) GetProcAddress (shell, | |
191 | "SetCurrentProcessExplicitAppUserModelID"); | |
192 | ||
193 | /* If the function is defined, then we are running on Windows 7 | |
194 | or newer, and the UI uses this to group related windows | |
195 | together. Since emacs, runemacs, emacsclient are related, we | |
196 | want them grouped even though the executables are different, | |
197 | so we need to set a consistent ID between them. */ | |
198 | if (set_user_model) | |
199 | set_user_model (L"GNU.Emacs"); | |
200 | ||
201 | FreeLibrary (shell); | |
202 | } | |
203 | } | |
204 |