[gnome-games] libgames-support: [win32] Attach to console when run from console

[Christian Persch <chpe src gnome org>]

commit c2494d344db4f09ac4396f42b7fcb5d15e4a80f6
Author: Christian Persch <chpe gnome org>
Date:   Tue Jun 23 12:46:28 2009 +0200

    libgames-support: [win32] Attach to console when run from console
    
    On Windows, when called from a console, get console output. This works
    only with Windows XP or higher. Windows 2000 will not have console output
    but it will just work fine.
    
    Code copied from gconf (via evince), under LGPL 2+.

 libgames-support/games-runtime.c |   37 ++++++++++++++++++++++++++++++++++---
 1 files changed, 34 insertions(+), 3 deletions(-)
---
diff --git a/libgames-support/games-runtime.c b/libgames-support/games-runtime.c
index 677535e..ec5a2c1 100644
--- a/libgames-support/games-runtime.c
+++ b/libgames-support/games-runtime.c
@@ -1,6 +1,7 @@
 /*
  * Copyright © 2007 Andreas Røsdal <andreasr gnome org>
  * Copyright © 2007, 2008 Christian Persch
+ * Copyright © 2009 Tor Lillqvist
  *
  * This game is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -22,10 +23,11 @@
 
 #include <locale.h>
 
-#if defined (G_OS_WIN32)
-#include <windows.h>
+#ifdef G_OS_WIN32
 #include <io.h>
-#define HELP_EXT "xhtml"
+#include <conio.h>
+#define _WIN32_WINNT 0x0500
+#include <windows.h>
 #endif /* G_OS_WIN32 */
 
 #include <glib/gi18n.h>
@@ -89,6 +91,34 @@ games_runtime_init (const char *name)
 
   setlocale (LC_ALL, "");
 
+#ifdef G_OS_WIN32
+  /* On Windows, when called from a console, get console output. This works
+   * only with Windows XP or higher; Windows 2000 will not have console
+   * output but it will just work fine.
+   */
+  if (fileno (stdout) != -1 &&
+      _get_osfhandle (fileno (stdout)) != -1) {
+    /* stdout is fine, presumably redirected to a file or pipe.
+     * Make sure stdout goes somewhere, too.
+     */
+    if (_get_osfhandle (fileno (stderr)) == -1) {
+      dup2 (fileno (stdout), fileno (stderr));
+    }
+  } else {
+    typedef BOOL (* WINAPI AttachConsole_t) (DWORD);
+
+    AttachConsole_t p_AttachConsole =
+      (AttachConsole_t) GetProcAddress (GetModuleHandle ("kernel32.dll"), "AttachConsole");
+
+    if (p_AttachConsole != NULL && p_AttachConsole (ATTACH_PARENT_PROCESS)) {
+      freopen ("CONOUT$", "w", stdout);
+      dup2 (fileno (stdout), 1);
+      freopen ("CONOUT$", "w", stderr);
+      dup2 (fileno (stderr), 2);
+    }
+  }
+#endif /* G_OS_WIN32 */
+
 #if defined(HAVE_GNOME) || defined(HAVE_RSVG_GNOMEVFS) || defined(HAVE_CANBERRA_GTK)
   /* If we're going to use gconf, gnome-vfs, or canberra, we need to
    * init threads; and this has to be done before calling any other glib functions.
@@ -111,6 +141,7 @@ games_runtime_init (const char *name)
 {
   const char *path;
 
+  /* Now check that we can get the module installation directory */
   path = games_runtime_get_directory (GAMES_RUNTIME_MODULE_DIRECTORY);
 
   _games_debug_print (GAMES_DEBUG_RUNTIME,