Generating bindings for um/objbase and adding implicit conversion operators to LARGE_INTEGER

TerraFX.Interop.Windows.sln

@@ -2770,6 +2770,13 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "lzexpand", "lzexpand", "{CC
 		generation\Windows\um\lzexpand\um-lzexpand.h = generation\Windows\um\lzexpand\um-lzexpand.h
 	EndProjectSection
 EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "objbase", "objbase", "{B31F49C6-C263-4674-86D9-3E890348AF4B}"
+	ProjectSection(SolutionItems) = preProject
+		generation\Windows\um\objbase\generate.rsp = generation\Windows\um\objbase\generate.rsp
+		generation\Windows\um\objbase\header.txt = generation\Windows\um\objbase\header.txt
+		generation\Windows\um\objbase\um-objbase.h = generation\Windows\um\objbase\um-objbase.h
+	EndProjectSection
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -3197,6 +3204,7 @@ Global
 		{CBC62B75-03A4-470D-A52A-D84161773CB7} = {67311E5E-FA9C-43A6-B431-9EF10047A0CE}
 		{5FC51DA5-FF47-4100-BE74-2F3DE11EF163} = {67311E5E-FA9C-43A6-B431-9EF10047A0CE}
 		{CC539B27-F7D6-44F9-9CB4-6CA9486D824D} = {67311E5E-FA9C-43A6-B431-9EF10047A0CE}
+		{B31F49C6-C263-4674-86D9-3E890348AF4B} = {67311E5E-FA9C-43A6-B431-9EF10047A0CE}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {2FE36DF8-2D9C-4F20-8787-45DC74B57461}

generation/Windows/um/objbase/generate.rsp

@@ -0,0 +1,63 @@
+@../../../settings.rsp
+@../../../remap.rsp
+--exclude
+CLSIDFromProgIDEx
+CoBuildVersion
+CoCreateStandardMalloc
+CoFileTimeNow
+CreateStdProgressIndicator
+DcomChannelSetHResult
+StgOpenLayoutDocfile
+--file
+um-objbase.h
+--methodClassName
+Windows
+--namespace
+TerraFX.Interop.Windows
+--output
+../../../../sources/Interop/Windows/Windows/um/objbase
+--test-output
+../../../../tests/Interop/Windows/Windows/um/objbase
+--traverse
+C:/Program Files (x86)/Windows Kits/10/Include/10.0.20348.0/um/objbase.h
+--with-librarypath
+BindMoniker=ole32
+CoAllowSetForegroundWindow=ole32
+CoDosDateTimeToFileTime=ole32
+CoFileTimeToDosDateTime=ole32
+CoFreeAllLibraries=ole32
+CoFreeLibrary=ole32
+CoGetInstanceFromFile=combase
+CoGetInstanceFromIStorage=combase
+CoGetObject=ole32
+CoGetSystemSecurityPermissions=combase
+CoInitialize=ole32
+CoInstall=ole32
+CoIsOle1Class=ole32
+CoLoadLibrary=ole32
+CoRegisterChannelHook=ole32
+CoRegisterInitializeSpy=combase
+CoRegisterMallocSpy=combase
+CoRegisterMessageFilter=combase
+CoRevokeInitializeSpy=combase
+CoRevokeMallocSpy=combase
+CoTreatAsClass=ole32
+CreateAntiMoniker=ole32
+CreateBindCtx=ole32
+CreateClassMoniker=ole32
+CreateDataAdviseHolder=ole32
+CreateDataCache=ole32
+CreateFileMoniker=ole32
+CreateGenericComposite=ole32
+CreateItemMoniker=ole32
+CreateObjrefMoniker=ole32
+CreatePointerMoniker=ole32
+GetClassFile=ole32
+GetRunningObjectTable=ole32
+IsEqualGUID=ole32
+MkParseDisplayName=ole32
+MonikerCommonPrefixWith=ole32
+MonikerRelativePathTo=ole32
+StgGetIFillLockBytesOnFile=ole32
+StgGetIFillLockBytesOnILockBytes=ole32
+StgOpenAsyncDocfileOnIFillLockBytes=ole32

generation/Windows/um/objbase/header.txt

@@ -0,0 +1,4 @@
+// Copyright © Tanner Gooding and Contributors. Licensed under the MIT License (MIT). See License.md in the repository root for more information.
+
+// Ported from um/objbase.h in the Windows SDK for Windows 10.0.20348.0
+// Original source is Copyright © Microsoft. All rights reserved.

generation/Windows/um/objbase/um-objbase.h

@@ -0,0 +1,2 @@
+#include "..\..\..\TerraFX.h"
+#include <objbase.h>

sources/Interop/Windows/Windows/um/objbase/COINIT.cs

@@ -0,0 +1,24 @@
+// Copyright © Tanner Gooding and Contributors. Licensed under the MIT License (MIT). See License.md in the repository root for more information.
+
+// Ported from um/objbase.h in the Windows SDK for Windows 10.0.20348.0
+// Original source is Copyright © Microsoft. All rights reserved.
+
+using static TerraFX.Interop.Windows.COINITBASE;
+
+namespace TerraFX.Interop.Windows;
+
+/// <include file='COINIT.xml' path='doc/member[@name="COINIT"]/*' />
+public enum COINIT
+{
+    /// <include file='COINIT.xml' path='doc/member[@name="COINIT.COINIT_APARTMENTTHREADED"]/*' />
+    COINIT_APARTMENTTHREADED = 0x2,
+
+    /// <include file='COINIT.xml' path='doc/member[@name="COINIT.COINIT_MULTITHREADED"]/*' />
+    COINIT_MULTITHREADED = COINITBASE_MULTITHREADED,
+
+    /// <include file='COINIT.xml' path='doc/member[@name="COINIT.COINIT_DISABLE_OLE1DDE"]/*' />
+    COINIT_DISABLE_OLE1DDE = 0x4,
+
+    /// <include file='COINIT.xml' path='doc/member[@name="COINIT.COINIT_SPEED_OVER_MEMORY"]/*' />
+    COINIT_SPEED_OVER_MEMORY = 0x8,
+}

sources/Interop/Windows/Windows/um/objbase/COMSD.cs

@@ -0,0 +1,22 @@
+// Copyright © Tanner Gooding and Contributors. Licensed under the MIT License (MIT). See License.md in the repository root for more information.
+
+// Ported from um/objbase.h in the Windows SDK for Windows 10.0.20348.0
+// Original source is Copyright © Microsoft. All rights reserved.
+
+namespace TerraFX.Interop.Windows;
+
+/// <include file='COMSD.xml' path='doc/member[@name="COMSD"]/*' />
+public enum COMSD
+{
+    /// <include file='COMSD.xml' path='doc/member[@name="COMSD.SD_LAUNCHPERMISSIONS"]/*' />
+    SD_LAUNCHPERMISSIONS = 0,
+
+    /// <include file='COMSD.xml' path='doc/member[@name="COMSD.SD_ACCESSPERMISSIONS"]/*' />
+    SD_ACCESSPERMISSIONS = 1,
+
+    /// <include file='COMSD.xml' path='doc/member[@name="COMSD.SD_LAUNCHRESTRICTIONS"]/*' />
+    SD_LAUNCHRESTRICTIONS = 2,
+
+    /// <include file='COMSD.xml' path='doc/member[@name="COMSD.SD_ACCESSRESTRICTIONS"]/*' />
+    SD_ACCESSRESTRICTIONS = 3,
+}

sources/Interop/Windows/Windows/um/objbase/STG.cs

@@ -0,0 +1,18 @@
+// Copyright © Tanner Gooding and Contributors. Licensed under the MIT License (MIT). See License.md in the repository root for more information.
+
+// Ported from um/objbase.h in the Windows SDK for Windows 10.0.20348.0
+// Original source is Copyright © Microsoft. All rights reserved.
+
+namespace TerraFX.Interop.Windows;
+
+public static partial class STG
+{
+    [NativeTypeName("#define STG_TOEND 0xFFFFFFFFL")]
+    public const uint STG_TOEND = 0xFFFFFFFF;
+
+    [NativeTypeName("#define STG_LAYOUT_SEQUENTIAL 0x00000000L")]
+    public const int STG_LAYOUT_SEQUENTIAL = 0x00000000;
+
+    [NativeTypeName("#define STG_LAYOUT_INTERLEAVED 0x00000001L")]
+    public const int STG_LAYOUT_INTERLEAVED = 0x00000001;
+}

sources/Interop/Windows/Windows/um/objbase/Windows.cs

@@ -0,0 +1,180 @@
+// Copyright © Tanner Gooding and Contributors. Licensed under the MIT License (MIT). See License.md in the repository root for more information.
+
+// Ported from um/objbase.h in the Windows SDK for Windows 10.0.20348.0
+// Original source is Copyright © Microsoft. All rights reserved.
+
+using System;
+using System.Runtime.InteropServices;
+
+namespace TerraFX.Interop.Windows;
+
+public static unsafe partial class Windows
+{
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CoInitialize"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern HRESULT CoInitialize([NativeTypeName("LPVOID")] void* pvReserved);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CoRegisterMallocSpy"]/*' />
+    [DllImport("combase", ExactSpelling = true)]
+    public static extern HRESULT CoRegisterMallocSpy([NativeTypeName("LPMALLOCSPY")] IMallocSpy* pMallocSpy);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CoRevokeMallocSpy"]/*' />
+    [DllImport("combase", ExactSpelling = true)]
+    public static extern HRESULT CoRevokeMallocSpy();
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CoRegisterInitializeSpy"]/*' />
+    [DllImport("combase", ExactSpelling = true)]
+    public static extern HRESULT CoRegisterInitializeSpy(IInitializeSpy* pSpy, ULARGE_INTEGER* puliCookie);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CoRevokeInitializeSpy"]/*' />
+    [DllImport("combase", ExactSpelling = true)]
+    public static extern HRESULT CoRevokeInitializeSpy(ULARGE_INTEGER uliCookie);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CoGetSystemSecurityPermissions"]/*' />
+    [DllImport("combase", ExactSpelling = true)]
+    public static extern HRESULT CoGetSystemSecurityPermissions(COMSD comSDType, [NativeTypeName("PSECURITY_DESCRIPTOR *")] void** ppSD);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CoLoadLibrary"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern HINSTANCE CoLoadLibrary([NativeTypeName("LPOLESTR")] ushort* lpszLibName, BOOL bAutoFree);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CoFreeLibrary"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern void CoFreeLibrary(HINSTANCE hInst);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CoFreeAllLibraries"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern void CoFreeAllLibraries();
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CoGetInstanceFromFile"]/*' />
+    [DllImport("combase", ExactSpelling = true)]
+    public static extern HRESULT CoGetInstanceFromFile(COSERVERINFO* pServerInfo, [NativeTypeName("CLSID *")] Guid* pClsid, IUnknown* punkOuter, [NativeTypeName("DWORD")] uint dwClsCtx, [NativeTypeName("DWORD")] uint grfMode, [NativeTypeName("OLECHAR *")] ushort* pwszName, [NativeTypeName("DWORD")] uint dwCount, MULTI_QI* pResults);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CoGetInstanceFromIStorage"]/*' />
+    [DllImport("combase", ExactSpelling = true)]
+    public static extern HRESULT CoGetInstanceFromIStorage(COSERVERINFO* pServerInfo, [NativeTypeName("CLSID *")] Guid* pClsid, IUnknown* punkOuter, [NativeTypeName("DWORD")] uint dwClsCtx, [NativeTypeName("struct IStorage *")] IStorage* pstg, [NativeTypeName("DWORD")] uint dwCount, MULTI_QI* pResults);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CoAllowSetForegroundWindow"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern HRESULT CoAllowSetForegroundWindow(IUnknown* pUnk, [NativeTypeName("LPVOID")] void* lpvReserved);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CoIsOle1Class"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern BOOL CoIsOle1Class([NativeTypeName("const IID &")] Guid* rclsid);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CoFileTimeToDosDateTime"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern BOOL CoFileTimeToDosDateTime(FILETIME* lpFileTime, [NativeTypeName("LPWORD")] ushort* lpDosDate, [NativeTypeName("LPWORD")] ushort* lpDosTime);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CoDosDateTimeToFileTime"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern BOOL CoDosDateTimeToFileTime([NativeTypeName("WORD")] ushort nDosDate, [NativeTypeName("WORD")] ushort nDosTime, FILETIME* lpFileTime);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CoRegisterMessageFilter"]/*' />
+    [DllImport("combase", ExactSpelling = true)]
+    public static extern HRESULT CoRegisterMessageFilter([NativeTypeName("LPMESSAGEFILTER")] IMessageFilter* lpMessageFilter, [NativeTypeName("LPMESSAGEFILTER *")] IMessageFilter** lplpMessageFilter);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CoRegisterChannelHook"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern HRESULT CoRegisterChannelHook([NativeTypeName("const GUID &")] Guid* ExtensionUuid, IChannelHook* pChannelHook);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CoTreatAsClass"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern HRESULT CoTreatAsClass([NativeTypeName("const IID &")] Guid* clsidOld, [NativeTypeName("const IID &")] Guid* clsidNew);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CreateDataAdviseHolder"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern HRESULT CreateDataAdviseHolder([NativeTypeName("LPDATAADVISEHOLDER *")] IDataAdviseHolder** ppDAHolder);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CreateDataCache"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern HRESULT CreateDataCache([NativeTypeName("LPUNKNOWN")] IUnknown* pUnkOuter, [NativeTypeName("const IID &")] Guid* rclsid, [NativeTypeName("const IID &")] Guid* iid, [NativeTypeName("LPVOID *")] void** ppv);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.StgOpenAsyncDocfileOnIFillLockBytes"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern HRESULT StgOpenAsyncDocfileOnIFillLockBytes(IFillLockBytes* pflb, [NativeTypeName("DWORD")] uint grfMode, [NativeTypeName("DWORD")] uint asyncFlags, IStorage** ppstgOpen);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.StgGetIFillLockBytesOnILockBytes"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern HRESULT StgGetIFillLockBytesOnILockBytes(ILockBytes* pilb, IFillLockBytes** ppflb);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.StgGetIFillLockBytesOnFile"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern HRESULT StgGetIFillLockBytesOnFile([NativeTypeName("const OLECHAR *")] ushort* pwcsName, IFillLockBytes** ppflb);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CoInstall"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern HRESULT CoInstall(IBindCtx* pbc, [NativeTypeName("DWORD")] uint dwFlags, uCLSSPEC* pClassSpec, QUERYCONTEXT* pQuery, [NativeTypeName("LPWSTR")] ushort* pszCodeBase);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.BindMoniker"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern HRESULT BindMoniker([NativeTypeName("LPMONIKER")] IMoniker* pmk, [NativeTypeName("DWORD")] uint grfOpt, [NativeTypeName("const IID &")] Guid* iidResult, [NativeTypeName("LPVOID *")] void** ppvResult);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CoGetObject"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern HRESULT CoGetObject([NativeTypeName("LPCWSTR")] ushort* pszName, BIND_OPTS* pBindOptions, [NativeTypeName("const IID &")] Guid* riid, void** ppv);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.MkParseDisplayName"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern HRESULT MkParseDisplayName([NativeTypeName("LPBC")] IBindCtx* pbc, [NativeTypeName("LPCOLESTR")] ushort* szUserName, [NativeTypeName("ULONG *")] uint* pchEaten, [NativeTypeName("LPMONIKER *")] IMoniker** ppmk);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.MonikerRelativePathTo"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern HRESULT MonikerRelativePathTo([NativeTypeName("LPMONIKER")] IMoniker* pmkSrc, [NativeTypeName("LPMONIKER")] IMoniker* pmkDest, [NativeTypeName("LPMONIKER *")] IMoniker** ppmkRelPath, BOOL dwReserved);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.MonikerCommonPrefixWith"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern HRESULT MonikerCommonPrefixWith([NativeTypeName("LPMONIKER")] IMoniker* pmkThis, [NativeTypeName("LPMONIKER")] IMoniker* pmkOther, [NativeTypeName("LPMONIKER *")] IMoniker** ppmkCommon);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CreateBindCtx"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern HRESULT CreateBindCtx([NativeTypeName("DWORD")] uint reserved, [NativeTypeName("LPBC *")] IBindCtx** ppbc);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CreateGenericComposite"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern HRESULT CreateGenericComposite([NativeTypeName("LPMONIKER")] IMoniker* pmkFirst, [NativeTypeName("LPMONIKER")] IMoniker* pmkRest, [NativeTypeName("LPMONIKER *")] IMoniker** ppmkComposite);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.GetClassFile"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern HRESULT GetClassFile([NativeTypeName("LPCOLESTR")] ushort* szFilename, [NativeTypeName("CLSID *")] Guid* pclsid);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CreateClassMoniker"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern HRESULT CreateClassMoniker([NativeTypeName("const IID &")] Guid* rclsid, [NativeTypeName("LPMONIKER *")] IMoniker** ppmk);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CreateFileMoniker"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern HRESULT CreateFileMoniker([NativeTypeName("LPCOLESTR")] ushort* lpszPathName, [NativeTypeName("LPMONIKER *")] IMoniker** ppmk);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CreateItemMoniker"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern HRESULT CreateItemMoniker([NativeTypeName("LPCOLESTR")] ushort* lpszDelim, [NativeTypeName("LPCOLESTR")] ushort* lpszItem, [NativeTypeName("LPMONIKER *")] IMoniker** ppmk);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CreateAntiMoniker"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern HRESULT CreateAntiMoniker([NativeTypeName("LPMONIKER *")] IMoniker** ppmk);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CreatePointerMoniker"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern HRESULT CreatePointerMoniker([NativeTypeName("LPUNKNOWN")] IUnknown* punk, [NativeTypeName("LPMONIKER *")] IMoniker** ppmk);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.CreateObjrefMoniker"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern HRESULT CreateObjrefMoniker([NativeTypeName("LPUNKNOWN")] IUnknown* punk, [NativeTypeName("LPMONIKER *")] IMoniker** ppmk);
+
+    /// <include file='Windows.xml' path='doc/member[@name="Windows.GetRunningObjectTable"]/*' />
+    [DllImport("ole32", ExactSpelling = true)]
+    public static extern HRESULT GetRunningObjectTable([NativeTypeName("DWORD")] uint reserved, [NativeTypeName("LPRUNNINGOBJECTTABLE *")] IRunningObjectTable** pprot);
+
+    [NativeTypeName("#define MARSHALINTERFACE_MIN 500")]
+    public const int MARSHALINTERFACE_MIN = 500;
+
+    [NativeTypeName("#define ASYNC_MODE_COMPATIBILITY 0x00000001L")]
+    public const int ASYNC_MODE_COMPATIBILITY = 0x00000001;
+
+    [NativeTypeName("#define ASYNC_MODE_DEFAULT 0x00000000L")]
+    public const int ASYNC_MODE_DEFAULT = 0x00000000;
+
+    [NativeTypeName("#define STGTY_REPEAT 0x00000100L")]
+    public const int STGTY_REPEAT = 0x00000100;
+}

sources/Interop/Windows/Windows/um/winnt/LARGE_INTEGER.Manual.cs

@@ -0,0 +1,20 @@
+// Copyright © Tanner Gooding and Contributors. Licensed under the MIT License (MIT). See License.md in the repository root for more information.
+
+// Ported from um/winnt.h in the Windows SDK for Windows 10.0.20348.0
+// Original source is Copyright © Microsoft. All rights reserved.
+
+using System.Runtime.CompilerServices;
+
+namespace TerraFX.Interop.Windows;
+
+public partial struct LARGE_INTEGER
+{
+    public static implicit operator long(LARGE_INTEGER value) => value.QuadPart;
+
+    public static implicit operator LARGE_INTEGER(long value)
+    {
+        Unsafe.SkipInit(out LARGE_INTEGER result);
+        result.QuadPart = value;
+        return result;
+    }
+}

sources/Interop/Windows/Windows/um/winnt/ULARGE_INTEGER.Manual.cs

@@ -0,0 +1,20 @@
+// Copyright © Tanner Gooding and Contributors. Licensed under the MIT License (MIT). See License.md in the repository root for more information.
+
+// Ported from um/winnt.h in the Windows SDK for Windows 10.0.20348.0
+// Original source is Copyright © Microsoft. All rights reserved.
+
+using System.Runtime.CompilerServices;
+
+namespace TerraFX.Interop.Windows;
+
+public partial struct ULARGE_INTEGER
+{
+    public static implicit operator ulong(ULARGE_INTEGER value) => value.QuadPart;
+
+    public static implicit operator ULARGE_INTEGER(ulong value)
+    {
+        Unsafe.SkipInit(out ULARGE_INTEGER result);
+        result.QuadPart = value;
+        return result;
+    }
+}