Windows versionhelpers.h support.

simgear/misc/CMakeLists.txt

@@ -37,6 +37,10 @@ set(SOURCES
     gzcontainerfile.cxx
     )
 
+if (WINDOWS)
+    list(APPEND HEADERS sgversionhelpers.hxx)
+endif()
+
 if (APPLE)
     list(APPEND SOURCES CocoaHelpers.mm)
 endif()

simgear/misc/sg_path.cxx

@@ -57,7 +57,9 @@ static const char sgSearchPathSep = ':';
 
 #ifdef _WIN32
 #include <ShlObj.h>         // for CSIDL
-#include <versionhelpers.h>
+// TODO: replace this include file with the official <versionhelpers.h> header
+// included in the Windows 8.1 SDK
+#include "sgversionhelpers.hxx"
 
 static SGPath pathForCSIDL(int csidl, const SGPath& def)
 {

simgear/misc/sgversionhelpers.hxx

@@ -0,0 +1,122 @@
+// Clean drop-in replacement for the versionhelpers.h header
+//
+// Copyright (C) 2015 Alessandro Menti <alessandro.menti@hotmail.it>
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 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
+// Library General Public License for more details.
+//
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA
+
+#ifndef SG_VERSIONHELPERS_HXX_
+#define SG_VERSIONHELPERS_HXX_
+
+#include <sdkddkver.h>
+
+#ifdef __cplusplus
+#define VERSIONHELPERAPI inline bool
+#else
+#define VERSIONHELPERAPI FORCEINLINE BOOL
+#endif // __cplusplus
+
+/* Windows 8/8.1 version numbers, not defined in the Windows 7 SDK. */
+#ifndef _WIN32_WINNT_WIN8
+#define _WIN32_WINNT_WIN8 0x0602
+#endif
+#ifndef _WIN32_WINNT_WINBLUE
+#define _WIN32_WINNT_WINBLUE 0x0603
+#endif
+
+VERSIONHELPERAPI IsWindowsVersionOrGreater(WORD wMajorVersion,
+    WORD wMinorVersion, WORD wServicePackMajor) {
+    OSVERSIONINFOEXW osVersionInfo;
+    DWORDLONG dwlConditionMask = 0;
+    ZeroMemory(&osVersionInfo, sizeof(osVersionInfo));
+    osVersionInfo.dwOSVersionInfoSize = sizeof(osVersionInfo);
+    osVersionInfo.dwMajorVersion = wMajorVersion;
+    osVersionInfo.dwMinorVersion = wMinorVersion;
+    osVersionInfo.wServicePackMajor = wServicePackMajor;
+    VER_SET_CONDITION(dwlConditionMask, VER_MAJORVERSION,
+        VER_GREATER_EQUAL);
+    VER_SET_CONDITION(dwlConditionMask, VER_MINORVERSION,
+        VER_GREATER_EQUAL);
+    VER_SET_CONDITION(dwlConditionMask, VER_SERVICEPACKMAJOR,
+        VER_GREATER_EQUAL);
+    return VerifyVersionInfoW(&osVersionInfo, VER_MAJORVERSION
+        | VER_MINORVERSION | VER_SERVICEPACKMAJOR, dwlConditionMask);
+}
+
+VERSIONHELPERAPI IsWindowsXPOrGreater() {
+    return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WINXP),
+        LOBYTE(_WIN32_WINNT_WINXP), 0);
+}
+
+VERSIONHELPERAPI IsWindowsXPSP1OrGreater() {
+    return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WINXP),
+        LOBYTE(_WIN32_WINNT_WINXP), 1);
+}
+
+VERSIONHELPERAPI IsWindowsXPSP2OrGreater() {
+    return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WINXP),
+        LOBYTE(_WIN32_WINNT_WINXP), 2);
+}
+
+VERSIONHELPERAPI IsWindowsXPSP3OrGreater() {
+    return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WINXP),
+        LOBYTE(_WIN32_WINNT_WINXP), 3);
+}
+
+VERSIONHELPERAPI IsWindowsVistaOrGreater() {
+    return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_VISTA),
+        LOBYTE(_WIN32_WINNT_VISTA), 0);
+}
+
+VERSIONHELPERAPI IsWindowsVistaSP1OrGreater() {
+    return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_VISTA),
+        LOBYTE(_WIN32_WINNT_VISTA), 1);
+}
+
+VERSIONHELPERAPI IsWindowsVistaSP2OrGreater() {
+    return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_VISTA),
+        LOBYTE(_WIN32_WINNT_VISTA), 2);
+}
+
+VERSIONHELPERAPI IsWindows7OrGreater() {
+    return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WIN7),
+        LOBYTE(_WIN32_WINNT_WIN7), 0);
+}
+
+VERSIONHELPERAPI IsWindows7SP1OrGreater() {
+    return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WIN7),
+        LOBYTE(_WIN32_WINNT_WIN7), 1);
+}
+
+VERSIONHELPERAPI IsWindows8OrGreater() {
+    return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WIN8),
+        LOBYTE(_WIN32_WINNT_WIN8), 0);
+}
+
+VERSIONHELPERAPI IsWindows8Point1OrGreater() {
+    return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WINBLUE),
+        LOBYTE(_WIN32_WINNT_WINBLUE), 0);
+}
+
+VERSIONHELPERAPI IsWindowsServer() {
+    OSVERSIONINFOEXW osVersionInfo;
+    DWORDLONG dwlConditionMask = 0;
+    ZeroMemory(&osVersionInfo, sizeof(osVersionInfo));
+    osVersionInfo.dwOSVersionInfoSize = sizeof(osVersionInfo);
+    osVersionInfo.wProductType = VER_NT_WORKSTATION;
+    VER_SET_CONDITION(dwlConditionMask, VER_PRODUCT_TYPE, VER_EQUAL);
+    return !VerifyVersionInfoW(&osVersionInfo, VER_PRODUCT_TYPE,
+        dwlConditionMask);
+}
+#endif // SG_VERSIONHELPERS_HXX_