kernel32!VerifyVersionInfo and ntdll!RtlVerifyVersionInfo

src/Kernel32/Kernel32+OSVERSIONINFOEX.cs

@@ -0,0 +1,96 @@
+// Copyright (c) All contributors. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+namespace PInvoke
+{
+    using System.Runtime.InteropServices;
+
+    /// <summary>
+    /// Contains the <see cref="OSVERSIONINFOEX"/> nested type.
+    /// </summary>
+    public static partial class Kernel32
+    {
+        /// <summary>
+        /// The RTL_OSVERSIONINFOEXW structure contains operating system version information.
+        /// </summary>
+        [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
+        public unsafe partial struct OSVERSIONINFOEX
+        {
+            /// <summary>
+            /// The size, in bytes, of an RTL_OSVERSIONINFOEXW structure.
+            /// This member must be set before the structure is used with RtlGetVersion.
+            /// </summary>
+            public int dwOSVersionInfoSize;
+
+            /// <summary>
+            /// The major version number of the operating system. For example, for Windows 2000, the major version number is five.
+            /// </summary>
+            public int dwMajorVersion;
+
+            /// <summary>
+            /// The minor version number of the operating system. For example, for Windows 2000, the minor version number is zero
+            /// </summary>
+            public int dwMinorVersion;
+
+            /// <summary>
+            /// The build number of the operating system.
+            /// </summary>
+            public int dwBuildNumber;
+
+            /// <summary>
+            /// The operating system platform. For Win32 on NT-based operating systems, RtlGetVersion returns the value
+            /// VER_PLATFORM_WIN32_NT.
+            /// </summary>
+            public int dwPlatformId;
+
+            /// <summary>
+            /// The service-pack version string. This member contains a null-terminated string, such as "Service Pack 3", which
+            /// indicates the latest service pack installed on the system. If no service pack is installed, RtlGetVersion might not
+            /// initialize this string. Initialize szCSDVersion to zero (empty string) before the call to RtlGetVersion.
+            /// </summary>
+            public fixed char szCSDVersion[128];
+
+            /// <summary>
+            /// The major version number of the latest service pack installed on the system. For example, for Service Pack 3,
+            /// the major version number is three. If no service pack has been installed, the value is zero.
+            /// </summary>
+            public short wServicePackMajor;
+
+            /// <summary>
+            /// The minor version number of the latest service pack installed on the system. For example, for Service Pack 3,
+            /// the minor version number is zero.
+            /// </summary>
+            public short wServicePackMinor;
+
+            /// <summary>
+            /// The product suites available on the system. This member is set to zero or to the bitwise OR of one or more of
+            /// the <see cref="PRODUCT_SUITE"/> values.
+            /// </summary>
+            public PRODUCT_SUITE wSuiteMask;
+
+            /// <summary>
+            /// The product type. This member contains additional information about the system.
+            /// </summary>
+            public OS_TYPE wProductType;
+
+            /// <summary>
+            /// Reserved for future use.
+            /// </summary>
+            public byte wReserved;
+
+            /// <summary>
+            /// Helper method to create <see cref="OSVERSIONINFOEX"/> with
+            /// the right pre-initialization for <see cref="dwOSVersionInfoSize"/>
+            /// </summary>
+            /// <returns>A newly initialzed instance of <see cref="OSVERSIONINFOEX"/></returns>
+            public static OSVERSIONINFOEX Create() => new OSVERSIONINFOEX
+            {
+#if NETSTANDARD1_3_ORLATER
+                dwOSVersionInfoSize = Marshal.SizeOf<OSVERSIONINFOEX>()
+#else
+                dwOSVersionInfoSize = Marshal.SizeOf(typeof(OSVERSIONINFOEX))
+#endif
+            };
+        }
+    }
+}

src/Kernel32/Kernel32+OS_TYPE.cs

@@ -0,0 +1,21 @@
+// Copyright (c) All contributors. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+namespace PInvoke
+{
+    /// <summary>
+    /// Contains the <see cref="OS_TYPE"/> nested type.
+    /// </summary>
+    public static partial class Kernel32
+    {
+        /// <summary>
+        /// The product type enumeration
+        /// </summary>
+        public enum OS_TYPE : byte
+        {
+            VER_NT_WORKSTATION = 0x00000001,
+            VER_NT_DOMAIN_CONTROLLER = 0x00000002,
+            VER_NT_SERVER = 0x00000003
+        }
+    }
+}

src/Kernel32/Kernel32+PRODUCT_SUITE.cs

@@ -0,0 +1,96 @@
+// Copyright (c) All contributors. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+namespace PInvoke
+{
+    using System;
+
+    /// <summary>
+    /// Contains the <see cref="PRODUCT_SUITE"/> nested type
+    /// </summary>
+    public static partial class Kernel32
+    {
+        /// <summary>
+        /// The product suites available on the system.
+        /// </summary>
+        [Flags]
+        public enum PRODUCT_SUITE : short
+        {
+            /// <summary>
+            /// Microsoft BackOffice components are installed.
+            /// </summary>
+            VER_SUITE_BACKOFFICE = 0x00000004,
+
+            /// <summary>
+            /// Windows Server 2003, Web Edition is installed.
+            /// </summary>
+            VER_SUITE_BLADE = 0x00000400,
+
+            /// <summary>
+            /// Windows Server 2003, Compute Cluster Edition is installed.
+            /// </summary>
+            VER_SUITE_COMPUTE_SERVER = 0x00004000,
+
+            /// <summary>
+            /// Windows Server 2008 Datacenter, Windows Server 2003, Datacenter Edition, or Windows 2000 Datacenter Server is installed.
+            /// </summary>
+            VER_SUITE_DATACENTER = 0x00000080,
+
+            /// <summary>
+            /// Windows Server 2008 Enterprise, Windows Server 2003, Enterprise Edition, or Windows 2000 Advanced Server is installed.
+            /// </summary>
+            VER_SUITE_ENTERPRISE = 0x00000002,
+
+            /// <summary>
+            /// Windows XP Embedded is installed.
+            /// </summary>
+            VER_SUITE_EMBEDDEDNT = 0x00000040,
+
+            /// <summary>
+            /// Windows Vista Home Premium, Windows Vista Home Basic, or Windows XP Home Edition is installed.
+            /// </summary>
+            VER_SUITE_PERSONAL = 0x00000200,
+
+            /// <summary>
+            /// Remote Desktop is supported, but only one interactive session is supported.
+            /// This value is set unless the system is running in application server mode.
+            /// </summary>
+            VER_SUITE_SINGLEUSERTS = 0x00000100,
+
+            /// <summary>
+            /// Microsoft Small Business Server was once installed on the system, but may have been upgraded to another version of Windows.
+            /// </summary>
+            /// <remarks>
+            ///  You should not rely solely on the <see cref="VER_SUITE_SMALLBUSINESS"/> flag to determine whether Small Business Server is currently installed.
+            ///  Both this flag and the <see cref="VER_SUITE_SMALLBUSINESS_RESTRICTED"/> flag are set when this product suite is installed. If you upgrade this
+            ///  installation to Windows Server, Standard Edition, the <see cref="VER_SUITE_SMALLBUSINESS_RESTRICTED"/> flag is cleared, but the
+            ///  <see cref="VER_SUITE_SMALLBUSINESS"/> flag remains set, which, in this case, indicates that Small Business Server was previously installed on
+            ///  this system. If this installation is further upgraded to Windows Server, Enterprise Edition, the <see cref="VER_SUITE_SMALLBUSINESS"/> flag
+            ///  remains set.
+            /// </remarks>
+            VER_SUITE_SMALLBUSINESS = 0x00000001,
+
+            /// <summary>
+            /// Microsoft Small Business Server is installed with the restrictive client license in force.
+            /// For more information about this flag bit, see the remarks for <see cref="VER_SUITE_SMALLBUSINESS"/> flag.
+            /// </summary>
+            VER_SUITE_SMALLBUSINESS_RESTRICTED = 0x00000020,
+
+            /// <summary>
+            /// Windows Storage Server 2003 R2 or Windows Storage Server 2003 is installed.
+            /// </summary>
+            VER_SUITE_STORAGE_SERVER = 0x00002000,
+
+            /// <summary>
+            /// Terminal Services is installed. This value is always set. If <see cref="VER_SUITE_TERMINAL"/> is set but <see cref="VER_SUITE_SINGLEUSERTS"/> is not set,
+            /// the operating system is running in application server mode.
+            /// </summary>
+            VER_SUITE_TERMINAL = 0x00000010,
+
+            /// <summary>
+            /// Windows Home Server is installed.
+            /// </summary>
+            VER_SUITE_WH_SERVER = unchecked((short)0x00008000)
+        }
+    }
+}

src/Kernel32/Kernel32+VER_CONDITION.cs

@@ -0,0 +1,64 @@
+// Copyright (c) All contributors. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+namespace PInvoke
+{
+    /// <summary>
+    /// Contains the nested type <see cref="VER_CONDITION"/>
+    /// </summary>
+    public static partial class Kernel32
+    {
+        /// <summary>
+        /// The operator to be used for the comparison. The <see cref="VerifyVersionInfo(OSVERSIONINFOEX*, VER_MASK, long)"/> function uses this operator to compare a specified
+        /// attribute value to the corresponding value for the currently running system.
+        /// </summary>
+        /// <remarks>
+        /// For all values of dwTypeBitMask other than VER_SUITENAME, this parameter can be one of the following values:
+        ///     - <see cref="VER_EQUAL"/>
+        ///     - <see cref="VER_GREATER"/>
+        ///     - <see cref="VER_GREATER_EQUAL"/>
+        ///     - <see cref="VER_LESS"/>
+        ///     - <see cref="VER_LESS_EQUAL"/>
+        /// If dwTypeBitMask is VER_SUITENAME, this parameter can be one of the following values:
+        ///     - <see cref="VER_AND"/>
+        ///     - <see cref="VER_OR"/>
+        /// </remarks>
+        public enum VER_CONDITION : byte
+        {
+            /// <summary>
+            /// The current value must be equal to the specified value.
+            /// </summary>
+            VER_EQUAL = 1,
+
+            /// <summary>
+            /// The current value must be greater than the specified value.
+            /// </summary>
+            VER_GREATER = 2,
+
+            /// <summary>
+            /// The current value must be greater than or equal to the specified value.
+            /// </summary>
+            VER_GREATER_EQUAL = 3,
+
+            /// <summary>
+            /// The current value must be less than the specified value.
+            /// </summary>
+            VER_LESS = 4,
+
+            /// <summary>
+            /// The current value must be less than or equal to the specified value.
+            /// </summary>
+            VER_LESS_EQUAL = 5,
+
+            /// <summary>
+            /// All product suites specified in the wSuiteMask member must be present in the current system.
+            /// </summary>
+            VER_AND = 6,
+
+            /// <summary>
+            /// At least one of the specified product suites must be present in the current system.
+            /// </summary>
+            VER_OR = 7
+        }
+    }
+}

src/Kernel32/Kernel32+VER_MASK.cs

@@ -0,0 +1,61 @@
+// Copyright (c) All contributors. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+namespace PInvoke
+{
+    using System;
+
+    /// <summary>
+    /// Contains the <see cref="VER_MASK"/> nested type.
+    /// </summary>
+    public static partial class Kernel32
+    {
+        /// <summary>
+        /// A mask that indicates the member of the <see cref="OSVERSIONINFOEX"/> structure whose comparison operator is being set.
+        /// This value corresponds to one of the bits specified in the dwTypeMask parameter for the <see cref="VerifyVersionInfo(OSVERSIONINFOEX*, VER_MASK, long)"/> function.
+        /// </summary>
+        [Flags]
+        public enum VER_MASK : int
+        {
+            /// <summary>
+            /// dwBuildNumber
+            /// </summary>
+            VER_BUILDNUMBER = 0x0000004,
+
+            /// <summary>
+            /// dwBuildNumber
+            /// </summary>
+            VER_MAJORVERSION = 0x0000002,
+
+            /// <summary>
+            /// dwMinorVersion
+            /// </summary>
+            VER_MINORVERSION = 0x0000001,
+
+            /// <summary>
+            /// dwPlatformId
+            /// </summary>
+            VER_PLATFORMID = 0x0000008,
+
+            /// <summary>
+            /// wProductType
+            /// </summary>
+            VER_PRODUCT_TYPE = 0x0000080,
+
+            /// <summary>
+            /// wServicePackMajor
+            /// </summary>
+            VER_SERVICEPACKMAJOR = 0x0000020,
+
+            /// <summary>
+            /// wServicePackMinor
+            /// </summary>
+            VER_SERVICEPACKMINOR = 0x0000010,
+
+            /// <summary>
+            /// wSuiteMask
+            /// </summary>
+            VER_SUITENAME = 0x0000040
+        }
+    }
+}