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f5d0ac07 | 1 | /* Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 |
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 | ||
46 | int WINAPI | |
47 | WinMain (HINSTANCE hSelf, HINSTANCE hPrev, LPSTR cmdline, int nShow) | |
48 | { | |
49 | STARTUPINFO start; | |
50 | SECURITY_ATTRIBUTES sec_attrs; | |
c911543b GV |
51 | PROCESS_INFORMATION child; |
52 | int wait_for_child = FALSE; | |
05c4be3c | 53 | DWORD priority_class = NORMAL_PRIORITY_CLASS; |
c911543b | 54 | DWORD ret_code = 0; |
662463d9 RS |
55 | char *new_cmdline; |
56 | char *p; | |
c911543b GV |
57 | char modname[MAX_PATH]; |
58 | ||
59 | if (!GetModuleFileName (NULL, modname, MAX_PATH)) | |
60 | goto error; | |
61 | if ((p = strrchr (modname, '\\')) == NULL) | |
62 | goto error; | |
63 | *p = 0; | |
64 | ||
0ac7bf6c JR |
65 | new_cmdline = alloca (MAX_PATH + strlen (cmdline) + 3); |
66 | /* Quote executable name in case of spaces in the path. */ | |
67 | *new_cmdline = '"'; | |
68 | strcpy (new_cmdline + 1, modname); | |
c911543b | 69 | |
662463d9 | 70 | #ifdef CHOOSE_NEWEST_EXE |
c911543b | 71 | { |
662463d9 RS |
72 | /* Silly hack to allow new versions to be installed on |
73 | server even when current version is in use. */ | |
74 | ||
75 | char * best_name = alloca (MAX_PATH + 1); | |
76 | FILETIME best_time = {0,0}; | |
77 | WIN32_FIND_DATA wfd; | |
78 | HANDLE fh; | |
79 | p = new_cmdline + strlen (new_cmdline); | |
0ac7bf6c | 80 | strcpy (p, "\\emacs*.exe\" "); |
662463d9 RS |
81 | fh = FindFirstFile (new_cmdline, &wfd); |
82 | if (fh == INVALID_HANDLE_VALUE) | |
83 | goto error; | |
84 | do | |
85 | { | |
4da0d3f7 JB |
86 | if (wfd.ftLastWriteTime.dwHighDateTime > best_time.dwHighDateTime |
87 | || (wfd.ftLastWriteTime.dwHighDateTime == best_time.dwHighDateTime | |
88 | && wfd.ftLastWriteTime.dwLowDateTime > best_time.dwLowDateTime)) | |
89 | { | |
90 | best_time = wfd.ftLastWriteTime; | |
91 | strcpy (best_name, wfd.cFileName); | |
92 | } | |
662463d9 RS |
93 | } |
94 | while (FindNextFile (fh, &wfd)); | |
95 | FindClose (fh); | |
96 | *p++ = '\\'; | |
97 | strcpy (p, best_name); | |
98 | strcat (p, " "); | |
c911543b | 99 | } |
662463d9 | 100 | #else |
0ac7bf6c | 101 | strcat (new_cmdline, "\\emacs.exe\" "); |
662463d9 RS |
102 | #endif |
103 | ||
05c4be3c GV |
104 | /* Append original arguments if any; first look for arguments we |
105 | recognise (-wait, -high, and -low), and apply them ourselves. */ | |
106 | while (cmdline[0] == '-' || cmdline[0] == '/') | |
662463d9 | 107 | { |
05c4be3c GV |
108 | if (strncmp (cmdline+1, "wait", 4) == 0) |
109 | { | |
4da0d3f7 JB |
110 | wait_for_child = TRUE; |
111 | cmdline += 5; | |
112 | } | |
05c4be3c GV |
113 | else if (strncmp (cmdline+1, "high", 4) == 0) |
114 | { | |
115 | priority_class = HIGH_PRIORITY_CLASS; | |
116 | cmdline += 5; | |
117 | } | |
118 | else if (strncmp (cmdline+1, "low", 3) == 0) | |
119 | { | |
120 | priority_class = IDLE_PRIORITY_CLASS; | |
121 | cmdline += 4; | |
122 | } | |
123 | else | |
124 | break; | |
4da0d3f7 JB |
125 | /* Look for next argument. */ |
126 | while (*++cmdline == ' '); | |
05c4be3c | 127 | } |
4da0d3f7 | 128 | |
c911543b GV |
129 | strcat (new_cmdline, cmdline); |
130 | ||
662463d9 | 131 | /* Set emacs_dir variable if runemacs was in "%emacs_dir%\bin". */ |
c911543b | 132 | if ((p = strrchr (modname, '\\')) && stricmp (p, "\\bin") == 0) |
662463d9 RS |
133 | { |
134 | *p = 0; | |
135 | for (p = modname; *p; p++) | |
136 | if (*p == '\\') *p = '/'; | |
137 | SetEnvironmentVariable ("emacs_dir", modname); | |
138 | } | |
c911543b GV |
139 | |
140 | memset (&start, 0, sizeof (start)); | |
141 | start.cb = sizeof (start); | |
3bb69bbd | 142 | start.dwFlags = STARTF_USESHOWWINDOW | STARTF_USECOUNTCHARS; |
c911543b | 143 | start.wShowWindow = SW_HIDE; |
3bb69bbd JR |
144 | /* Ensure that we don't waste memory if the user has specified a huge |
145 | default screen buffer for command windows. */ | |
146 | start.dwXCountChars = 80; | |
147 | start.dwYCountChars = 25; | |
c911543b GV |
148 | |
149 | sec_attrs.nLength = sizeof (sec_attrs); | |
150 | sec_attrs.lpSecurityDescriptor = NULL; | |
151 | sec_attrs.bInheritHandle = FALSE; | |
152 | ||
05c4be3c | 153 | if (CreateProcess (NULL, new_cmdline, &sec_attrs, NULL, TRUE, priority_class, |
1e3c9713 | 154 | NULL, NULL, &start, &child)) |
c911543b GV |
155 | { |
156 | if (wait_for_child) | |
157 | { | |
158 | WaitForSingleObject (child.hProcess, INFINITE); | |
159 | GetExitCodeProcess (child.hProcess, &ret_code); | |
160 | } | |
161 | CloseHandle (child.hThread); | |
162 | CloseHandle (child.hProcess); | |
163 | } | |
164 | else | |
165 | goto error; | |
166 | return (int) ret_code; | |
167 | ||
168 | error: | |
169 | MessageBox (NULL, "Could not start Emacs.", "Error", MB_ICONSTOP); | |
170 | return 1; | |
171 | } | |
ab5796a9 MB |
172 | |
173 | /* arch-tag: 7e02df73-4df7-4aa0-baea-99c6d047a384 | |
174 | (do not change this comment) */ |