File: Windows.Win32.IEnumString.g.cs
Project: src\src\System.Private.Windows.Core\src\System.Private.Windows.Core.csproj (System.Private.Windows.Core)
// ------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated by a tool.
//
//     Changes to this file may cause incorrect behavior and will be lost if
//     the code is regenerated.
// </auto-generated>
// ------------------------------------------------------------------------------

#pragma warning disable CS1591,CS1573,CS0465,CS0649,CS8019,CS1570,CS1584,CS1658,CS0436,CS8981
using global::System;
using global::System.Diagnostics;
using global::System.Diagnostics.CodeAnalysis;
using global::System.Runtime.CompilerServices;
using global::System.Runtime.InteropServices;
using global::System.Runtime.Versioning;
using winmdroot = global::Windows.Win32;
namespace Windows.Win32
{
	namespace System.Com
	{
		[Guid("00000101-0000-0000-C000-000000000046")]
		[SupportedOSPlatform("windows5.0")]
		[global::System.CodeDom.Compiler.GeneratedCode("Microsoft.Windows.CsWin32", "0.3.151+58e949951d.RR")]
		internal unsafe partial struct IEnumString
			:IVTable<IEnumString,IEnumString.Vtbl>,IComIID		{
			/// <inheritdoc cref="QueryInterface(global::System.Guid*, void**)"/>
			internal unsafe winmdroot.Foundation.HRESULT QueryInterface(in global::System.Guid riid, out void* ppvObject)
			{
				fixed (void** ppvObjectLocal = &ppvObject)
				{
					fixed (global::System.Guid* riidLocal = &riid)
					{
						winmdroot.Foundation.HRESULT __result = this.QueryInterface(riidLocal, ppvObjectLocal);
						return __result;
					}
				}
			}

			public unsafe winmdroot.Foundation.HRESULT QueryInterface(global::System.Guid* riid, void** ppvObject)
			{
				return ((delegate *unmanaged [Stdcall]<IEnumString*,global::System.Guid* ,void** ,winmdroot.Foundation.HRESULT>)lpVtbl[0])((IEnumString*)Unsafe.AsPointer(ref this), riid, ppvObject);
			}

			public uint AddRef()
			{
				return ((delegate *unmanaged [Stdcall]<IEnumString*,uint>)lpVtbl[1])((IEnumString*)Unsafe.AsPointer(ref this));
			}

			public uint Release()
			{
				return ((delegate *unmanaged [Stdcall]<IEnumString*,uint>)lpVtbl[2])((IEnumString*)Unsafe.AsPointer(ref this));
			}

			/// <inheritdoc cref="Next(uint, winmdroot.Foundation.PWSTR*, uint*)"/>
			internal unsafe winmdroot.Foundation.HRESULT Next(Span<winmdroot.Foundation.PWSTR> rgelt, uint* pceltFetched)
			{
				fixed (winmdroot.Foundation.PWSTR* rgeltLocal = rgelt)
				{
					winmdroot.Foundation.HRESULT __result = this.Next((uint )rgelt.Length, rgeltLocal, pceltFetched);
					return __result;
				}
			}

			[UnmanagedCallersOnly(CallConvs = new []{
typeof(CallConvStdcall)}
)]
			private static winmdroot.Foundation.HRESULT Next(IEnumString* pThis, uint celt, winmdroot.Foundation.PWSTR* rgelt, [Optional] uint* pceltFetched)
			{
				try
				{
					winmdroot.Foundation.HRESULT __hr = ComHelpers.UnwrapCCW(pThis, out Interface __object);
					if (__hr.Failed)
					{
						return __hr;
					}
					return __object.Next(celt, rgelt, pceltFetched);
				}
				catch (Exception ex)
				{
					return (winmdroot.Foundation.HRESULT)ex.HResult;
				}
			}

			/// <summary>The IEnumString::Next (objidlbase.h) method retrieves the specified number of items in the enumeration sequence.</summary>
			/// <param name="celt">The number of items to be retrieved. If there are fewer than the requested number of items left in the sequence, this method retrieves the remaining elements.</param>
			/// <param name="rgelt">
			/// <para>An array of enumerated items. The enumerator is responsible for allocating any memory, and the caller is responsible for freeing it. If <i>celt</i> is greater than 1, the caller must also pass a non-NULL pointer passed to <i>pceltFetched</i> to know how many pointers to release.</para>
			/// <para><see href="https://learn.microsoft.com/windows/win32/api/objidlbase/nf-objidlbase-ienumstring-next#parameters">Read more on docs.microsoft.com</see>.</para>
			/// </param>
			/// <param name="pceltFetched">The number of items that were retrieved. This parameter is always less than or equal to the number of items requested.</param>
			/// <returns>If the method retrieves the number of items requested, the return value is S_OK. Otherwise, it is S_FALSE.</returns>
			/// <remarks>
			/// <para><see href="https://learn.microsoft.com/windows/win32/api/objidlbase/nf-objidlbase-ienumstring-next">Learn more about this API from docs.microsoft.com</see>.</para>
			/// </remarks>
			public unsafe winmdroot.Foundation.HRESULT Next(uint celt, winmdroot.Foundation.PWSTR* rgelt, [Optional] uint* pceltFetched)
			{
				return ((delegate *unmanaged [Stdcall]<IEnumString*,uint ,winmdroot.Foundation.PWSTR* ,uint* ,winmdroot.Foundation.HRESULT>)lpVtbl[3])((IEnumString*)Unsafe.AsPointer(ref this), celt, rgelt, pceltFetched);
			}

			[UnmanagedCallersOnly(CallConvs = new []{
typeof(CallConvStdcall)}
)]
			private static winmdroot.Foundation.HRESULT Skip(IEnumString* pThis, uint celt)
			{
				try
				{
					winmdroot.Foundation.HRESULT __hr = ComHelpers.UnwrapCCW(pThis, out Interface __object);
					if (__hr.Failed)
					{
						return __hr;
					}
					return __object.Skip(celt);
				}
				catch (Exception ex)
				{
					return (winmdroot.Foundation.HRESULT)ex.HResult;
				}
			}

			/// <summary>The IEnumString::Skip (objidlbase.h) method skips over the specified number of items in the enumeration sequence.</summary>
			/// <param name="celt">The number of items to be skipped.</param>
			/// <returns>If the method skips the number of items requested, the return value is S_OK. Otherwise, it is S_FALSE.</returns>
			/// <remarks>
			/// <para><see href="https://learn.microsoft.com/windows/win32/api/objidlbase/nf-objidlbase-ienumstring-skip">Learn more about this API from docs.microsoft.com</see>.</para>
			/// </remarks>
			public winmdroot.Foundation.HRESULT Skip(uint celt)
			{
				return ((delegate *unmanaged [Stdcall]<IEnumString*,uint ,winmdroot.Foundation.HRESULT>)lpVtbl[4])((IEnumString*)Unsafe.AsPointer(ref this), celt);
			}

			[UnmanagedCallersOnly(CallConvs = new []{
typeof(CallConvStdcall)}
)]
			private static winmdroot.Foundation.HRESULT Reset(IEnumString* pThis)
			{
				try
				{
					winmdroot.Foundation.HRESULT __hr = ComHelpers.UnwrapCCW(pThis, out Interface __object);
					if (__hr.Failed)
					{
						return __hr;
					}
					return __object.Reset();
				}
				catch (Exception ex)
				{
					return (winmdroot.Foundation.HRESULT)ex.HResult;
				}
			}

			/// <summary>The IEnumString::Reset (objidlbase.h) method resets the enumeration sequence to the beginning.</summary>
			/// <returns>The return value is S_OK.</returns>
			/// <remarks>There is no guarantee that the same set of objects will be enumerated after the reset operation has completed. A static collection is reset to the beginning, but it can be too expensive for some collections, such as files in a directory, to guarantee this condition.</remarks>
			public winmdroot.Foundation.HRESULT Reset()
			{
				return ((delegate *unmanaged [Stdcall]<IEnumString*,winmdroot.Foundation.HRESULT>)lpVtbl[5])((IEnumString*)Unsafe.AsPointer(ref this));
			}

			[UnmanagedCallersOnly(CallConvs = new []{
typeof(CallConvStdcall)}
)]
			private static winmdroot.Foundation.HRESULT Clone(IEnumString* pThis, winmdroot.System.Com.IEnumString** ppenum)
			{
				try
				{
					winmdroot.Foundation.HRESULT __hr = ComHelpers.UnwrapCCW(pThis, out Interface __object);
					if (__hr.Failed)
					{
						return __hr;
					}
					return __object.Clone(ppenum);
				}
				catch (Exception ex)
				{
					return (winmdroot.Foundation.HRESULT)ex.HResult;
				}
			}

			/// <summary>The IEnumString::Clone (objidlbase.h) method creates a new enumerator that contains the same enumeration state as the current one.</summary>
			/// <param name="ppenum">A pointer to the cloned enumerator object.</param>
			/// <returns>This method can return the standard return values E_INVALIDARG, E_OUTOFMEMORY, E_UNEXPECTED, and S_OK.</returns>
			/// <remarks>
			/// <para><see href="https://learn.microsoft.com/windows/win32/api/objidlbase/nf-objidlbase-ienumstring-clone">Learn more about this API from docs.microsoft.com</see>.</para>
			/// </remarks>
			public unsafe winmdroot.Foundation.HRESULT Clone(winmdroot.System.Com.IEnumString** ppenum)
			{
				return ((delegate *unmanaged [Stdcall]<IEnumString*,winmdroot.System.Com.IEnumString** ,winmdroot.Foundation.HRESULT>)lpVtbl[6])((IEnumString*)Unsafe.AsPointer(ref this), ppenum);
			}

			internal unsafe global::Windows.Win32.Foundation.HRESULT QueryInterface<T>(out T* ppv)
where T : unmanaged

			{
				var hr = this.QueryInterface(typeof(T).GUID, out void* pv);
				if (hr.Succeeded)

				{
					ppv = (T*)pv;
				}
				else

				{
					ppv = null;
				}

				return hr;
			}

			internal struct Vtbl
			{
				internal delegate *unmanaged [Stdcall]<IEnumString*,global::System.Guid* ,void** ,winmdroot.Foundation.HRESULT> QueryInterface_1;

				internal delegate *unmanaged [Stdcall]<IEnumString*,uint> AddRef_2;

				internal delegate *unmanaged [Stdcall]<IEnumString*,uint> Release_3;

				internal delegate *unmanaged [Stdcall]<IEnumString*,uint ,winmdroot.Foundation.PWSTR* ,uint* ,winmdroot.Foundation.HRESULT> Next_4;

				internal delegate *unmanaged [Stdcall]<IEnumString*,uint ,winmdroot.Foundation.HRESULT> Skip_5;

				internal delegate *unmanaged [Stdcall]<IEnumString*,winmdroot.Foundation.HRESULT> Reset_6;

				internal delegate *unmanaged [Stdcall]<IEnumString*,winmdroot.System.Com.IEnumString** ,winmdroot.Foundation.HRESULT> Clone_7;
			} 
			public static void PopulateVTable(Vtbl* vtable)
			{
				vtable->Next_4 = &Next;
				vtable->Skip_5 = &Skip;
				vtable->Reset_6 = &Reset;
				vtable->Clone_7 = &Clone;
			}

			private void** lpVtbl;

			/// <summary>The IID guid for this interface.</summary>
			/// <value>{00000101-0000-0000-c000-000000000046}</value>
			internal static readonly Guid IID_Guid = new Guid(0x00000101, 0x0000, 0x0000, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46);

			static ref readonly Guid IComIID.Guid			{
								[MethodImpl(MethodImplOptions.AggressiveInlining)]
get
				{
					ReadOnlySpan<byte> data = new byte[]					{
0x01,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x46					};
					return ref Unsafe.As<byte,Guid>(ref MemoryMarshal.GetReference(data));
				}
			}
			[Guid("00000101-0000-0000-C000-000000000046"),InterfaceType(ComInterfaceType.InterfaceIsIUnknown),ComImport()]
			[SupportedOSPlatform("windows5.0")]
			internal interface Interface
			{
				[PreserveSig()]
				unsafe winmdroot.Foundation.HRESULT Next(uint celt, winmdroot.Foundation.PWSTR* rgelt, [Optional] uint* pceltFetched);

								[PreserveSig()]
winmdroot.Foundation.HRESULT Skip(uint celt);

								[PreserveSig()]
winmdroot.Foundation.HRESULT Reset();

				[PreserveSig()]
				unsafe winmdroot.Foundation.HRESULT Clone(winmdroot.System.Com.IEnumString** ppenum);
			}
		}
	}
}