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[Emacs-diffs] Changes to emacs/nt/addpm.c,v [EMACS_22_BASE]
From: |
Jason Rumney |
Subject: |
[Emacs-diffs] Changes to emacs/nt/addpm.c,v [EMACS_22_BASE] |
Date: |
Mon, 11 Feb 2008 15:35:56 +0000 |
CVSROOT: /sources/emacs
Module name: emacs
Branch: EMACS_22_BASE
Changes by: Jason Rumney <jasonr> 08/02/11 15:35:55
Index: addpm.c
===================================================================
RCS file: /sources/emacs/emacs/nt/addpm.c,v
retrieving revision 1.24.2.2
retrieving revision 1.24.2.3
diff -u -b -r1.24.2.2 -r1.24.2.3
--- addpm.c 7 Jan 2008 08:15:15 -0000 1.24.2.2
+++ addpm.c 11 Feb 2008 15:35:55 -0000 1.24.2.3
@@ -46,6 +46,9 @@
CF_TEXT, XTYP_EXECUTE, 30000, NULL)
#define REG_ROOT "SOFTWARE\\GNU\\Emacs"
+#define REG_GTK "SOFTWARE\\GTK\\2.0"
+#define REG_APP_PATH \
+ "SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\App Paths\\emacs.exe"
static struct entry
{
@@ -73,6 +76,57 @@
HKEY hrootkey = NULL;
int i;
BOOL ok = TRUE;
+ DWORD size;
+
+ /* 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, "",
+ REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL,
+ &hrootkey, NULL) == ERROR_SUCCESS)
+ {
+ int len;
+ char *emacs_path;
+ HKEY gtk_key = NULL;
+
+ len = strlen (path) + 15; /* \bin\emacs.exe + terminator. */
+ emacs_path = alloca (len);
+ sprintf (emacs_path, "%s\\bin\\emacs.exe", path);
+
+ RegSetValueEx (hrootkey, NULL, 0, REG_SZ, emacs_path, len);
+
+ /* Look for a GTK installation. If found, add it to the library search
+ path for Emacs so that the image libraries it provides are available
+ to Emacs regardless of whether it is in the path or not. */
+ if (RegOpenKeyEx (HKEY_LOCAL_MACHINE, REG_GTK, REG_OPTION_NON_VOLATILE,
+ KEY_READ, >k_key) == ERROR_SUCCESS)
+ {
+ if (RegQueryValueEx (gtk_key, "DllPath", NULL, NULL,
+ NULL, &size) == ERROR_SUCCESS)
+ {
+ char *gtk_path = (char *) alloca (size);
+ if (RegQueryValueEx (gtk_key, "DllPath", NULL, NULL,
+ gtk_path, &size) == ERROR_SUCCESS)
+ {
+ /* Make sure the emacs bin directory continues to be searched
+ first by including it as well. */
+ char *dll_paths;
+ len = strlen (path) + 5 + size;
+ dll_paths = (char *) alloca (size + strlen (path) + 1);
+ sprintf (dll_paths, "%s\\bin;%s", path, gtk_path);
+ RegSetValueEx (hrootkey, "Path", 0, REG_SZ, dll_paths, len);
+ }
+ }
+ RegCloseKey (gtk_key);
+ }
+ RegCloseKey (hrootkey);
+ }
/* Previous versions relied on registry settings, but we do not need
them any more. If registry settings are installed from a previous
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