[wing] Add wing_is_wow_64 util method

[Ignacio Casal Quinteiro <icq src gnome org>]

commit e7d9db55e8abd824800a75f4c40d3f17d9301383
Author: Ignacio Casal Quinteiro <ignacio casal nice-software com>
Date:   Mon May 2 10:10:29 2016 -0700

    Add wing_is_wow_64 util method
    
    This method gets whether the process is wow 64

 wing/Makefile.sources |    2 ++
 wing/wing.h           |    1 +
 wing/wingutils.c      |   37 +++++++++++++++++++++++++++++++++++++
 wing/wingutils.h      |   31 +++++++++++++++++++++++++++++++
 4 files changed, 71 insertions(+), 0 deletions(-)
---
diff --git a/wing/Makefile.sources b/wing/Makefile.sources
index 844d2ea..875ca95 100644
--- a/wing/Makefile.sources
+++ b/wing/Makefile.sources
@@ -11,6 +11,7 @@ WING_BASE_sources = \
        wingservice.c \
        wingservice-private.h \
        wingservicemanager.c \
+       wingutils.c \
        $(NULL)
 
 WING_BASE_headers = \
@@ -21,4 +22,5 @@ WING_BASE_headers = \
        wingnamedpipelistener.h \
        wingservice.h \
        wingservicemanager.h \
+       wingutils.h \
        $(NULL)
diff --git a/wing/wing.h b/wing/wing.h
index f567ff4..1350a24 100644
--- a/wing/wing.h
+++ b/wing/wing.h
@@ -26,5 +26,6 @@
 #include <wing/wingnamedpipeconnection.h>
 #include <wing/wingservice.h>
 #include <wing/wingservicemanager.h>
+#include <wing/wingutils.h>
 
 #endif /* __WING_H__ */
diff --git a/wing/wingutils.c b/wing/wingutils.c
new file mode 100644
index 0000000..9d603bf
--- /dev/null
+++ b/wing/wingutils.c
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2016 NICE s.r.l.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "wingutils.h"
+
+#include <windows.h>
+
+gboolean
+wing_is_wow_64 (void)
+{
+  typedef BOOL (WINAPI *LPFN_ISWOW64PROCESS) (HANDLE, PBOOL);
+  LPFN_ISWOW64PROCESS fnIsWow64Process;
+  BOOL is_wow_64 = FALSE;
+
+  fnIsWow64Process = (LPFN_ISWOW64PROCESS)GetProcAddress (GetModuleHandle (TEXT ("kernel32")), 
"IsWow64Process");
+  if (fnIsWow64Process != NULL)
+    {
+      if (!fnIsWow64Process (GetCurrentProcess (), &is_wow_64))
+        return FALSE;
+    }
+
+  return is_wow_64;
+}
diff --git a/wing/wingutils.h b/wing/wingutils.h
new file mode 100644
index 0000000..f3e2135
--- /dev/null
+++ b/wing/wingutils.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2016 NICE s.r.l.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef WING_SERVICE_H
+#define WING_SERVICE_H
+
+#include <glib.h>
+#include <wing/wingversionmacros.h>
+
+G_BEGIN_DECLS
+
+WING_AVAILABLE_IN_ALL
+gboolean     wing_is_wow_64            (void);
+
+G_END_DECLS
+
+#endif /* WING_SERVICE_H */