#ifndef _VERSIONHELPERS_H
#define _VERSIONHELPERS_H

/* #include <winapifamily.h> */

#if __POCC__ >= 500
#pragma once
#endif

#if (NTDDI_VERSION >= NTDDI_WINXP)

#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(void)
{
    return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WINXP), LOBYTE(_WIN32_WINNT_WINXP), 0);
}

VERSIONHELPERAPI IsWindowsXPSP1OrGreater(void)
{
    return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WINXP), LOBYTE(_WIN32_WINNT_WINXP), 1);
}

VERSIONHELPERAPI IsWindowsXPSP2OrGreater(void)
{
    return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WINXP), LOBYTE(_WIN32_WINNT_WINXP), 2);
}

VERSIONHELPERAPI IsWindowsXPSP3OrGreater(void)
{
    return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WINXP), LOBYTE(_WIN32_WINNT_WINXP), 3);
}

VERSIONHELPERAPI IsWindowsVistaOrGreater(void)
{
    return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_VISTA), LOBYTE(_WIN32_WINNT_VISTA), 0);
}

VERSIONHELPERAPI IsWindowsVistaSP1OrGreater(void)
{
    return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_VISTA), LOBYTE(_WIN32_WINNT_VISTA), 1);
}

VERSIONHELPERAPI IsWindowsVistaSP2OrGreater(void)
{
    return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_VISTA), LOBYTE(_WIN32_WINNT_VISTA), 2);
}

VERSIONHELPERAPI IsWindows7OrGreater(void)
{
    return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WIN7), LOBYTE(_WIN32_WINNT_WIN7), 0);
}

VERSIONHELPERAPI IsWindows7SP1OrGreater(void)
{
    return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WIN7), LOBYTE(_WIN32_WINNT_WIN7), 1);
}

VERSIONHELPERAPI IsWindows8OrGreater(void)
{
    return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WIN8), LOBYTE(_WIN32_WINNT_WIN8), 0);
}

VERSIONHELPERAPI IsWindows8Point1OrGreater(void)
{
    return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WINBLUE), LOBYTE(_WIN32_WINNT_WINBLUE), 0);
}

VERSIONHELPERAPI IsWindowsServer(void)
{
    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);
}

#endif /* NTDDI_VERSION */

#endif /* _VERSIONHELPERS_H */
