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c＃如何使用新版本的助手API

由于OSVersion现在不可靠，因为Windows 10已经发布（这个函数报告Windows 10的Windows 10），我试图在我的C＃应用​​程序中使用新的版本帮助器API函数。 他们在这里 。

我很抱歉，如果这只是我的DLL导入问题，但这里是我试图拉入这些新的方法来正确检测操作系统。 

[DllImport("kernel32.dll", CharSet = CharSet.Auto)] public static extern bool IsWindows7OrGreater(); [DllImport("kernel32.dll", CharSet = CharSet.Auto)] public static extern bool IsWindows8OrGreater(); [DllImport("kernel32.dll", CharSet = CharSet.Auto)] public static extern bool IsWindows8Point1OrGreater(); [DllImport("kernel32.dll", CharSet = CharSet.Auto)] public static extern bool IsWindows10OrGreater();

每当我调用这些方法，我得到：

exception是：EntryPointNotFoundException – 无法在DLL'kernel32.dll'中find名为“IsWindows7OrGreater”的入口点。

难道我做错了什么？ 有人有主意吗？ 谢谢你的帮助！

编辑：请参阅接受的答案，并看看这个代码项目移植到C＃这些方法的良好开端。

不幸的是，这比这更复杂一点。 “函数”实际上是在VersionHelpers.h定义的宏。

如果你想到了，这是唯一的方法 – 他们不能追溯功能添加到较旧的Windows版本。

您必须将宏移植到C＃。

您的代码必须包含一个Manifest 

  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1"> <application> <!-- A list of all Windows versions that this application is designed to work with. Windows will automatically select the most compatible environment.--> <!-- Windows 10 --> <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}"/> <!-- Windows 8.1 --> <supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}"/> <!-- Windows Vista --> <supportedOS Id="{e2011457-1546-43c5-a5fe-008deee3d3f0}"/> <!-- Windows 7 --> <supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/> <!-- Windows 8 --> <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/> <!-- If your application is designed to work with Windows 7, uncomment the following supportedOS node--> <!--<supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/>--> </application> </compatibility>

这告诉操作系统你的代码支持更新的操作系统

使用下面的类 

 using System; using System.Runtime.InteropServices; namespace VersionHelper { public static class VersionHelper { const byte VER_EQUAL = 1; const byte VER_GREATER = 2; const byte VER_GREATER_EQUAL = 3; const byte VER_LESS = 4; const byte VER_LESS_EQUAL = 5; const byte VER_AND = 6; const byte VER_OR = 7; const byte VER_CONDITION_MASK = 7; const byte VER_NUM_BITS_PER_CONDITION_MASK = 3; // // RtlVerifyVersionInfo() type mask bits // const uint VER_MINORVERSION = 0x0000001; const uint VER_MAJORVERSION = 0x0000002; const uint VER_BUILDNUMBER = 0x0000004; const uint VER_PLATFORMID = 0x0000008; const uint VER_SERVICEPACKMINOR = 0x0000010; const uint VER_SERVICEPACKMAJOR = 0x0000020; const uint VER_SUITENAME = 0x0000040; const uint VER_PRODUCT_TYPE = 0x0000080; // wProductType // Any additional information about the system.This member can be one of the following values. const byte VER_NT_DOMAIN_CONTROLLER = 0x0000002; const byte VER_NT_SERVER = 0x0000003; const byte VER_NT_WORKSTATION = 0x0000001; // // _WIN32_WINNT version constants // const ushort _WIN32_WINNT_NT4 = 0x0400; const ushort _WIN32_WINNT_WIN2K = 0x0500; const ushort _WIN32_WINNT_WINXP = 0x0501; const ushort _WIN32_WINNT_WS03 = 0x0502; const ushort _WIN32_WINNT_WIN6 = 0x0600; const ushort _WIN32_WINNT_VISTA = 0x0600; const ushort _WIN32_WINNT_WS08 = 0x0600; const ushort _WIN32_WINNT_LONGHORN = 0x0600; const ushort _WIN32_WINNT_WIN7 = 0x0601; const ushort _WIN32_WINNT_WIN8 = 0x0602; const ushort _WIN32_WINNT_WINBLUE = 0x0603; const ushort _WIN32_WINNT_WINTHRESHOLD = 0x0A00; /* ABRACADABRA_THRESHOLD*/ const ushort _WIN32_WINNT_WIN10 = 0x0A00; /* ABRACADABRA_THRESHOLD*/ const bool FALSE = false; static byte LOBYTE(ushort w) { return ((byte)(w & 0xff)); } static byte HIBYTE(ushort w) { return ((byte)(w >> 8 & 0xff)); } [DllImport("kernel32.dll")] static extern ulong VerSetConditionMask(ulong ConditionMask, uint TypeMask, byte Condition ); [DllImport("kernel32.dll")] static extern bool VerifyVersionInfoW(ref OSVERSIONINFOEXW lpVersionInformation, uint dwTypeMask, ulong dwlConditionMask); [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)] struct OSVERSIONINFOEXW { public int dwOSVersionInfoSize; public int dwMajorVersion; public int dwMinorVersion; public int dwBuildNumber; public int dwPlatformId; [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 128)] public string szCSDVersion; public UInt16 wServicePackMajor; public UInt16 wServicePackMinor; public UInt16 wSuiteMask; public byte wProductType; public byte wReserved; } public static bool IsWindowsVersionOrGreater(ushort wMajorVersion, ushort wMinorVersion, ushort wServicePackMajor) { var osvi = new OSVERSIONINFOEXW { dwOSVersionInfoSize = Marshal.SizeOf(typeof(OSVERSIONINFOEXW)) }; var 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(ref osvi, VER_MAJORVERSION | VER_MINORVERSION | VER_SERVICEPACKMAJOR, dwlConditionMask) != FALSE; } public static bool IsWindowsXPOrGreater() { return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WINXP), LOBYTE(_WIN32_WINNT_WINXP), 0); } public static bool IsWindowsXPSP1OrGreater() { return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WINXP), LOBYTE(_WIN32_WINNT_WINXP), 1); } public static bool IsWindowsXPSP2OrGreater() { return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WINXP), LOBYTE(_WIN32_WINNT_WINXP), 2); } public static bool IsWindowsXPSP3OrGreater() { return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WINXP), LOBYTE(_WIN32_WINNT_WINXP), 3); } public static bool IsWindowsVistaOrGreater() { return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_VISTA), LOBYTE(_WIN32_WINNT_VISTA), 0); } public static bool IsWindowsVistaSP1OrGreater() { return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_VISTA), LOBYTE(_WIN32_WINNT_VISTA), 1); } public static bool IsWindowsVistaSP2OrGreater() { return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_VISTA), LOBYTE(_WIN32_WINNT_VISTA), 2); } public static bool IsWindows7OrGreater() { return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WIN7), LOBYTE(_WIN32_WINNT_WIN7), 0); } public static bool IsWindows7SP1OrGreater() { return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WIN7), LOBYTE(_WIN32_WINNT_WIN7), 1); } public static bool IsWindows8OrGreater() { return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WIN8), LOBYTE(_WIN32_WINNT_WIN8), 0); } public static bool IsWindows8Point1OrGreater() { return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WINBLUE), LOBYTE(_WIN32_WINNT_WINBLUE), 0); } public static bool IsWindowsThresholdOrGreater() { return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WINTHRESHOLD), LOBYTE(_WIN32_WINNT_WINTHRESHOLD), 0); } public static bool IsWindows10OrGreater() { return IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WINTHRESHOLD), LOBYTE(_WIN32_WINNT_WINTHRESHOLD), 0); } public static bool IsWindowsserver() { var osvi = new OSVERSIONINFOEXW { dwOSVersionInfoSize = Marshal.SizeOf(typeof(OSVERSIONINFOEXW)), wProductType = VER_NT_WORKSTATION }; var dwlConditionMask = VerSetConditionMask(0, VER_PRODUCT_TYPE, VER_EQUAL); return !VerifyVersionInfoW( ref osvi, VER_PRODUCT_TYPE, dwlConditionMask); } } }

VersionHelpers函数不会在任何dll中导出，而是在VersionHelpers.h文件中定义的，为了利用C＃代码中的功能，您可以从头文件复制功能，

导入这两个功能： 

 [DllImport("kernel32.dll")] static extern ulong VerSetConditionMask(ulong dwlConditionMask, uint dwTypeBitMask, byte dwConditionMask); [DllImport("kernel32.dll")] static extern bool VerifyVersionInfo([In] ref OsVersionInfoEx lpVersionInfo, uint dwTypeMask, ulong dwlConditionMask);

定义以下结构： 

 [StructLayout(LayoutKind.Sequential)] struct OsVersionInfoEx { public uint OSVersionInfoSize; public uint MajorVersion; public uint MinorVersion; public uint BuildNumber; public uint PlatformId; [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 128)] public string CSDVersion; public ushort ServicePackMajor; public ushort ServicePackMinor; public ushort SuiteMask; public byte ProductType; public byte Reserved; }

然后使用以下功能： 

 static bool IsWindowsVersionOrGreater(uint majorVersion, uint minorVersion, ushort servicePackMajor) { OsVersionInfoEx osvi = new OsVersionInfoEx(); osvi.OSVersionInfoSize = (uint)Marshal.SizeOf(osvi); osvi.MajorVersion = majorVersion; osvi.MinorVersion = minorVersion; osvi.ServicePackMajor = servicePackMajor; // These constants initialized with corresponding definitions in // winnt.h (part of Windows SDK) const uint VER_MINORVERSION = 0x0000001; const uint VER_MAJORVERSION = 0x0000002; const uint VER_SERVICEPACKMAJOR = 0x0000020; const byte VER_GREATER_EQUAL = 3; ulong versionOrGreaterMask = VerSetConditionMask( VerSetConditionMask( VerSetConditionMask( 0, VER_MAJORVERSION, VER_GREATER_EQUAL), VER_MINORVERSION, VER_GREATER_EQUAL), VER_SERVICEPACKMAJOR, VER_GREATER_EQUAL); uint versionOrGreaterTypeMask = VER_MAJORVERSION |VER_MINORVERSION | VER_SERVICEPACKMAJOR; return VerifyVersionInfo(ref osvi, versionOrGreaterTypeMask, versionOrGreaterMask);

}