/******************************************************************
*                                                                 *
*  VersionHelpers.h -- This module defines helper functions to    *
*                      promote version check with proper          *
*                      comparisons.                               *
*                                                                 *
*  Copyright (c) Microsoft Corp.  All rights reserved.            *
*                                                                 *
******************************************************************/
#include <winapifamily.h>

#ifdef _MSC_VER
#pragma once
#endif  // _MSC_VER

#pragma region Application Family
#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)

#include <specstrings.h>    // for _In_, etc.

#if !defined(__midl) && !defined(SORTPP_PASS)

#if (NTDDI_VERSION >= NTDDI_WINXP)

#ifndef _versionhelpers_H_INCLUDED_
#define _versionhelpers_H_INCLUDED_

#ifdef __cplusplus

#define VERSIONHELPERAPI inline bool

#else  // __cplusplus

#define VERSIONHELPERAPI FORCEINLINE BOOL

#endif // __cplusplus

VERSIONHELPERAPI
IsWindowsVersionOrGreater(WORD wMajorVersion, WORD wMinorVersion, WORD wServicePackMajor)
{
    OSVERSIONINFOEXW osvi = { sizeof(osvi), 0, 0, 0, 0, {0}, 0, 0 };
    DWORDLONG        const dwlConditionMask = VerSetConditionMask(
        VerSetConditionMask(
        VerSetConditionMask(
            0, VER_MAJORVERSION, VER_GREATER_EQUAL),
               VER_MINORVERSION, VER_GREATER_EQUAL),
               VER_SERVICEPACKMAJOR, VER_GREATER_EQUAL);

    osvi.dwMajorVersion = wMajorVersion;
    osvi.dwMinorVersion = wMinorVersion;
    osvi.wServicePackMajor = wServicePackMajor;

    return VerifyVersionInfoW(&osvi, VER_MAJORVERSION | VER_MINORVERSION | VER_SERVICEPACKMAJOR, dwlConditionMask) != FALSE;
}

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
IsWindowsThresholdOrGreater()
{
    return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WINTHRESHOLD), LOBYTE(_WIN32_WINNT_WINTHRESHOLD), 0);
}

VERSIONHELPERAPI
IsWindows10OrGreater()
{
    return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WINTHRESHOLD), LOBYTE(_WIN32_WINNT_WINTHRESHOLD), 0);
}

VERSIONHELPERAPI
IsWindowsServer()
{
    OSVERSIONINFOEXW osvi = { sizeof(osvi), 0, 0, 0, 0, {0}, 0, 0, 0, VER_NT_WORKSTATION };
    DWORDLONG        const dwlConditionMask = VerSetConditionMask( 0, VER_PRODUCT_TYPE, VER_EQUAL );

    return !VerifyVersionInfoW(&osvi, VER_PRODUCT_TYPE, dwlConditionMask);
}

VERSIONHELPERAPI
IsActiveSessionCountLimited()
{
    BOOL fActiveSessionCountLimited = FALSE;
    DWORDLONG dwlConditionMask = 0;
    OSVERSIONINFOEX VersionInfo = { 0 };

    VER_SET_CONDITION(dwlConditionMask, VER_SUITENAME, VER_AND);
    VersionInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);

    VersionInfo.wSuiteMask = VER_SUITE_TERMINAL;
    BOOL fSuiteTerminal = VerifyVersionInfo( &VersionInfo, VER_SUITENAME, dwlConditionMask );

    VersionInfo.wSuiteMask = VER_SUITE_SINGLEUSERTS;
    BOOL fSuiteSingleUserTS = VerifyVersionInfo( &VersionInfo, VER_SUITENAME, dwlConditionMask );

    fActiveSessionCountLimited  = !(fSuiteTerminal & !fSuiteSingleUserTS);

    return fActiveSessionCountLimited != FALSE;
}

#endif // _VERSIONHELPERS_H_INCLUDED_

#endif // NTDDI_VERSION

#endif // defined(__midl)

#endif /* WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) */
#pragma endregion