--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nt/runemacs.c	Mon Aug 13 11:20:41 2007 +0200
@@ -0,0 +1,185 @@
+/*
+  Simple program to start Emacs with its console window hidden.
+
+  This program is provided purely for convenience, since most users will
+  use Emacs in windowing (GUI) mode, and will not want to have an extra
+  console window lying around.  */
+
+/*
+   You may want to define this if you want to be able to install updated
+   emacs binaries even when other users are using the current version.
+   The problem with some file servers (notably Novell) is that an open
+   file cannot be overwritten, deleted, or even renamed.  So if someone
+   is running emacs.exe already, you cannot install a newer version.
+   By defining CHOOSE_NEWEST_EXE, you can name your new emacs.exe
+   something else which matches "emacs*.exe", and runemacs will
+   automatically select the newest emacs executeable in the bin directory.
+   (So you'll probably be able to delete the old version some hours/days
+   later).
+*/
+
+/* #define CHOOSE_NEWEST_EXE */
+
+#define WIN32
+
+#include <windows.h>
+#include <string.h>
+#include <malloc.h>
+
+#if defined(__CYGWIN32__)
+#include <sys/types.h>
+#include <sys/stat.h>
+#endif
+
+int WINAPI
+WinMain (HINSTANCE hSelf, HINSTANCE hPrev, LPSTR cmdline, int nShow)
+{
+  STARTUPINFO start;
+  SECURITY_ATTRIBUTES sec_attrs;
+  SECURITY_DESCRIPTOR sec_desc;
+  PROCESS_INFORMATION child;
+  int wait_for_child = FALSE;
+  DWORD ret_code = 0;
+  char *new_cmdline;
+  char *basename;
+  char *p;
+  char modname[MAX_PATH];
+
+  if (!GetModuleFileName (NULL, modname, MAX_PATH))
+    goto error;
+  if ((p = strrchr (modname, '\\')) == NULL)
+    goto error;
+
+  basename = alloca(strlen(p) + 1);
+  strcpy (basename, p + 1);
+  
+  *p = 0;
+
+  new_cmdline = alloca (MAX_PATH + strlen (cmdline) + 1);
+  strcpy (new_cmdline, modname);
+
+#ifdef CHOOSE_NEWEST_EXE
+  {
+    /* Silly hack to allow new versions to be installed on
+       server even when current version is in use. */
+
+    char * best_name = alloca (MAX_PATH + 1);
+    FILETIME best_time = {0,0};
+    WIN32_FIND_DATA wfd;
+    HANDLE fh;
+    p = new_cmdline + strlen (new_cmdline);
+    strcpy (p, "\\xemacs*.exe ");
+    fh = FindFirstFile (new_cmdline, &wfd);
+    if (fh == INVALID_HANDLE_VALUE)
+      goto error;
+    do
+      {
+        if (wfd.ftLastWriteTime.dwHighDateTime > best_time.dwHighDateTime
+            || (wfd.ftLastWriteTime.dwHighDateTime == best_time.dwHighDateTime
+                && wfd.ftLastWriteTime.dwLowDateTime > best_time.dwLowDateTime))
+          {
+            best_time = wfd.ftLastWriteTime;
+            strcpy (best_name, wfd.cFileName);
+          }
+      }
+    while (FindNextFile (fh, &wfd));
+    FindClose (fh);
+    *p++ = '\\';
+    strcpy (p, best_name);
+    strcat (p, " ");
+  }
+#else
+#if defined(__CYGWIN32__)
+  {
+    struct stat stbuf;
+    char sym_link_name[MAX_PATH+1], real_name[MAX_PATH+1];
+    
+    strcpy(sym_link_name, new_cmdline);
+    if (strcmp(basename, "rungnuclient.exe") == 0)
+      strcat(new_cmdline, "\\gnuclient.exe ");
+    else if (strcmp(basename, "runemacs.exe") == 0)
+      {
+        strcat(sym_link_name, "\\xemacs");
+          
+        if (lstat(sym_link_name, &stbuf) == 0)
+          {
+            if ((stbuf.st_mode & S_IFLNK) == S_IFLNK)
+              {
+                if (readlink(sym_link_name, real_name, sizeof(real_name)) == -1)
+                  {
+                    MessageBox (NULL, "Error reading symbolic link for xemacs",
+                                "Error", MB_ICONSTOP);
+                    return 1;
+                  }
+                else
+                  {
+                    strcat(new_cmdline, "\\");
+                    strcat(new_cmdline, real_name);
+                    strcat(new_cmdline, " ");
+                  }
+              }
+            else
+              strcat(new_cmdline, "\\xemacs ");
+          }
+        else
+          {
+            MessageBox (NULL, "can't locate XEmacs executable",
+                        "Error", MB_ICONSTOP);
+            return 1;
+          }
+      }
+  }
+#else					
+  if (strcmp(basename, "rungnuclient.exe") == 0)
+    strcat (new_cmdline, "\\gnuclient.exe ");
+  else 
+    strcat (new_cmdline, "\\xemacs.exe ");
+#endif
+#endif
+
+  /* Append original arguments if any; first look for -wait as first
+     argument, and apply that ourselves.  */
+  if (strncmp (cmdline, "-wait", 5) == 0)
+    {
+      wait_for_child = TRUE;
+      cmdline += 5;
+    }
+  strcat (new_cmdline, cmdline);
+
+  /* Set emacs_dir variable if runemacs was in "%emacs_dir%\bin".  */
+  if ((p = strrchr (modname, '\\')) && stricmp (p, "\\bin") == 0)
+    {
+      *p = 0;
+      for (p = modname; *p; p++)
+	if (*p == '\\') *p = '/';
+      SetEnvironmentVariable ("emacs_dir", modname);
+    }
+
+  memset (&start, 0, sizeof (start));
+  start.cb = sizeof (start);
+  start.dwFlags = STARTF_USESHOWWINDOW;
+  start.wShowWindow = SW_HIDE;
+
+  sec_attrs.nLength = sizeof (sec_attrs);
+  sec_attrs.lpSecurityDescriptor = NULL;
+  sec_attrs.bInheritHandle = FALSE;
+
+  if (CreateProcess (NULL, new_cmdline, &sec_attrs, NULL, TRUE, 0,
+		     NULL, NULL, &start, &child))
+    {
+      if (wait_for_child)
+	{
+	  WaitForSingleObject (child.hProcess, INFINITE);
+	  GetExitCodeProcess (child.hProcess, &ret_code);
+	}
+      CloseHandle (child.hThread);
+      CloseHandle (child.hProcess);
+    }
+  else
+    goto error;
+  return (int) ret_code;
+
+error:
+  MessageBox (NULL, "Could not start XEmacs or gnuclient.", "Error", MB_ICONSTOP);
+  return 1;
+}