/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim: set ts=8 sts=2 et sw=2 tw=80: */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #ifndef mozilla_WindowsVersion_h #define mozilla_WindowsVersion_h #include "mozilla/Attributes.h" #include <stdint.h> #include <windows.h> namespace mozilla { inline bool IsWindowsVersionOrLater(uint32_t aVersion) { static uint32_t minVersion = 0; static uint32_t maxVersion = UINT32_MAX; if (minVersion >= aVersion) { return true; } if (aVersion >= maxVersion) { return false; } OSVERSIONINFOEX info; ZeroMemory(&info, sizeof(OSVERSIONINFOEX)); info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX); info.dwMajorVersion = aVersion >> 24; info.dwMinorVersion = (aVersion >> 16) & 0xFF; info.wServicePackMajor = (aVersion >> 8) & 0xFF; info.wServicePackMinor = aVersion & 0xFF; DWORDLONG conditionMask = 0; VER_SET_CONDITION(conditionMask, VER_MAJORVERSION, VER_GREATER_EQUAL); VER_SET_CONDITION(conditionMask, VER_MINORVERSION, VER_GREATER_EQUAL); VER_SET_CONDITION(conditionMask, VER_SERVICEPACKMAJOR, VER_GREATER_EQUAL); VER_SET_CONDITION(conditionMask, VER_SERVICEPACKMINOR, VER_GREATER_EQUAL); if (VerifyVersionInfo(&info, VER_MAJORVERSION | VER_MINORVERSION | VER_SERVICEPACKMAJOR | VER_SERVICEPACKMINOR, conditionMask)) { minVersion = aVersion; return true; } maxVersion = aVersion; return false; } inline bool IsWindowsBuildOrLater(uint32_t aBuild) { static uint32_t minBuild = 0; static uint32_t maxBuild = UINT32_MAX; if (minBuild >= aBuild) { return true; } if (aBuild >= maxBuild) { return false; } OSVERSIONINFOEX info; ZeroMemory(&info, sizeof(OSVERSIONINFOEX)); info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX); info.dwBuildNumber = aBuild; DWORDLONG conditionMask = 0; VER_SET_CONDITION(conditionMask, VER_BUILDNUMBER, VER_GREATER_EQUAL); if (VerifyVersionInfo(&info, VER_BUILDNUMBER, conditionMask)) { minBuild = aBuild; return true; } maxBuild = aBuild; return false; } // Although many of the older versions are not supported, we should keep // these entries for completeness (since they don't take any resources of // note), and to cater to corner cases for applications running e.g. in // Windows' compatibility mode. MOZ_ALWAYS_INLINE bool IsXPSP3OrLater() { return IsWindowsVersionOrLater(0x05010300ul); } MOZ_ALWAYS_INLINE bool IsWin2003OrLater() { return IsWindowsVersionOrLater(0x05020000ul); } MOZ_ALWAYS_INLINE bool IsWin2003SP2OrLater() { return IsWindowsVersionOrLater(0x05020200ul); } MOZ_ALWAYS_INLINE bool IsVistaOrLater() { return IsWindowsVersionOrLater(0x06000000ul); } MOZ_ALWAYS_INLINE bool IsVistaSP1OrLater() { return IsWindowsVersionOrLater(0x06000100ul); } MOZ_ALWAYS_INLINE bool IsWin7OrLater() { return IsWindowsVersionOrLater(0x06010000ul); } MOZ_ALWAYS_INLINE bool IsWin7SP1OrLater() { return IsWindowsVersionOrLater(0x06010100ul); } MOZ_ALWAYS_INLINE bool IsWin8OrLater() { return IsWindowsVersionOrLater(0x06020000ul); } MOZ_ALWAYS_INLINE bool IsWin8Point1OrLater() { return IsWindowsVersionOrLater(0x06030000ul); } MOZ_ALWAYS_INLINE bool IsWin10OrLater() { return IsWindowsVersionOrLater(0x0a000000ul); } MOZ_ALWAYS_INLINE bool IsNotWin7PreRTM() { return IsWin7SP1OrLater() || !IsWin7OrLater() || IsWindowsBuildOrLater(7600); } } // namespace mozilla #endif /* mozilla_WindowsVersion_h */