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|
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System.Collections.Generic;
using System.Reflection;
using System.Security;
using System.Text;
using System.Runtime.CompilerServices;
using System.Runtime.ConstrainedExecution;
using Microsoft.Win32;
using System.Diagnostics;
using System.Runtime.InteropServices.ComTypes;
using System.StubHelpers;
using Internal.Runtime.CompilerServices;
namespace System.Runtime.InteropServices
{
/// <summary>
/// This class contains methods that are mainly used to marshal between unmanaged
/// and managed types.
/// </summary>
public static partial class Marshal
{
#if FEATURE_COMINTEROP
/// <summary>
/// IUnknown is {00000000-0000-0000-C000-000000000046}
/// </summary>
internal static Guid IID_IUnknown = new Guid(0, 0, 0, 0xC0, 0, 0, 0, 0, 0, 0, 0x46);
#endif //FEATURE_COMINTEROP
[MethodImpl(MethodImplOptions.InternalCall)]
internal static extern int SizeOfHelper(Type t, bool throwIfNotMarshalable);
public static IntPtr OffsetOf(Type t, string fieldName)
{
if (t == null)
{
throw new ArgumentNullException(nameof(t));
}
FieldInfo f = t.GetField(fieldName, BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
if (f == null)
{
throw new ArgumentException(SR.Format(SR.Argument_OffsetOfFieldNotFound, t.FullName), nameof(fieldName));
}
if (!(f is RtFieldInfo rtField))
{
throw new ArgumentException(SR.Argument_MustBeRuntimeFieldInfo, nameof(fieldName));
}
return OffsetOfHelper(rtField);
}
[MethodImpl(MethodImplOptions.InternalCall)]
private static extern IntPtr OffsetOfHelper(IRuntimeFieldInfo f);
public static byte ReadByte(object ptr, int ofs)
{
return ReadValueSlow(ptr, ofs, (IntPtr nativeHome, int offset) => ReadByte(nativeHome, offset));
}
public static short ReadInt16(object ptr, int ofs)
{
return ReadValueSlow(ptr, ofs, (IntPtr nativeHome, int offset) => ReadInt16(nativeHome, offset));
}
public static int ReadInt32(object ptr, int ofs)
{
return ReadValueSlow(ptr, ofs, (IntPtr nativeHome, int offset) => ReadInt32(nativeHome, offset));
}
public static long ReadInt64([MarshalAs(UnmanagedType.AsAny), In] object ptr, int ofs)
{
return ReadValueSlow(ptr, ofs, (IntPtr nativeHome, int offset) => ReadInt64(nativeHome, offset));
}
//====================================================================
// Read value from marshaled object (marshaled using AsAny)
// It's quite slow and can return back dangling pointers
// It's only there for backcompact
// People should instead use the IntPtr overloads
//====================================================================
private static unsafe T ReadValueSlow<T>(object ptr, int ofs, Func<IntPtr, int, T> readValueHelper)
{
// Consumers of this method are documented to throw AccessViolationException on any AV
if (ptr == null)
{
throw new AccessViolationException();
}
const int Flags =
(int)AsAnyMarshaler.AsAnyFlags.In |
(int)AsAnyMarshaler.AsAnyFlags.IsAnsi |
(int)AsAnyMarshaler.AsAnyFlags.IsBestFit;
MngdNativeArrayMarshaler.MarshalerState nativeArrayMarshalerState = new MngdNativeArrayMarshaler.MarshalerState();
AsAnyMarshaler marshaler = new AsAnyMarshaler(new IntPtr(&nativeArrayMarshalerState));
IntPtr pNativeHome = IntPtr.Zero;
try
{
pNativeHome = marshaler.ConvertToNative(ptr, Flags);
return readValueHelper(pNativeHome, ofs);
}
finally
{
marshaler.ClearNative(pNativeHome);
}
}
public static void WriteByte(object ptr, int ofs, byte val)
{
WriteValueSlow(ptr, ofs, val, (IntPtr nativeHome, int offset, byte value) => WriteByte(nativeHome, offset, value));
}
public static void WriteInt16(object ptr, int ofs, short val)
{
WriteValueSlow(ptr, ofs, val, (IntPtr nativeHome, int offset, short value) => Marshal.WriteInt16(nativeHome, offset, value));
}
public static void WriteInt32(object ptr, int ofs, int val)
{
WriteValueSlow(ptr, ofs, val, (IntPtr nativeHome, int offset, int value) => Marshal.WriteInt32(nativeHome, offset, value));
}
public static void WriteInt64(object ptr, int ofs, long val)
{
WriteValueSlow(ptr, ofs, val, (IntPtr nativeHome, int offset, long value) => Marshal.WriteInt64(nativeHome, offset, value));
}
/// <summary>
/// Write value into marshaled object (marshaled using AsAny) and propagate the
/// value back. This is quite slow and can return back dangling pointers. It is
/// only here for backcompat. People should instead use the IntPtr overloads.
/// </summary>
private static unsafe void WriteValueSlow<T>(object ptr, int ofs, T val, Action<IntPtr, int, T> writeValueHelper)
{
// Consumers of this method are documented to throw AccessViolationException on any AV
if (ptr == null)
{
throw new AccessViolationException();
}
const int Flags =
(int)AsAnyMarshaler.AsAnyFlags.In |
(int)AsAnyMarshaler.AsAnyFlags.Out |
(int)AsAnyMarshaler.AsAnyFlags.IsAnsi |
(int)AsAnyMarshaler.AsAnyFlags.IsBestFit;
MngdNativeArrayMarshaler.MarshalerState nativeArrayMarshalerState = new MngdNativeArrayMarshaler.MarshalerState();
AsAnyMarshaler marshaler = new AsAnyMarshaler(new IntPtr(&nativeArrayMarshalerState));
IntPtr pNativeHome = IntPtr.Zero;
try
{
pNativeHome = marshaler.ConvertToNative(ptr, Flags);
writeValueHelper(pNativeHome, ofs, val);
marshaler.ConvertToManaged(ptr, pNativeHome);
}
finally
{
marshaler.ClearNative(pNativeHome);
}
}
[MethodImpl(MethodImplOptions.InternalCall)]
public static extern int GetLastWin32Error();
[MethodImpl(MethodImplOptions.InternalCall)]
internal static extern void SetLastWin32Error(int error);
private static void PrelinkCore(MethodInfo m)
{
if (!(m is RuntimeMethodInfo rmi))
{
throw new ArgumentException(SR.Argument_MustBeRuntimeMethodInfo, nameof(m));
}
InternalPrelink(rmi);
}
[DllImport(JitHelpers.QCall, CharSet = CharSet.Unicode)]
private static extern void InternalPrelink(IRuntimeMethodInfo m);
[MethodImpl(MethodImplOptions.InternalCall)]
public static extern /* struct _EXCEPTION_POINTERS* */ IntPtr GetExceptionPointers();
[MethodImpl(MethodImplOptions.InternalCall)]
public static extern int GetExceptionCode();
/// <summary>
/// Marshals data from a structure class to a native memory block. If the
/// structure contains pointers to allocated blocks and "fDeleteOld" is
/// true, this routine will call DestroyStructure() first.
/// </summary>
[MethodImpl(MethodImplOptions.InternalCall), ReliabilityContract(Consistency.WillNotCorruptState, Cer.MayFail)]
public static extern void StructureToPtr(object structure, IntPtr ptr, bool fDeleteOld);
private static object PtrToStructureHelper(IntPtr ptr, Type structureType)
{
var rt = (RuntimeType)structureType;
object structure = rt.CreateInstanceDefaultCtor(publicOnly: false, skipCheckThis: false, fillCache: false, wrapExceptions: true);
PtrToStructureHelper(ptr, structure, allowValueClasses: true);
return structure;
}
/// <summary>
/// Helper function to copy a pointer into a preallocated structure.
/// </summary>
[MethodImpl(MethodImplOptions.InternalCall)]
private static extern void PtrToStructureHelper(IntPtr ptr, object structure, bool allowValueClasses);
/// <summary>
/// Frees all substructures pointed to by the native memory block.
/// "structuretype" is used to provide layout information.
/// </summary>
[MethodImpl(MethodImplOptions.InternalCall)]
public static extern void DestroyStructure(IntPtr ptr, Type structuretype);
[MethodImpl(MethodImplOptions.InternalCall)]
internal static extern bool IsPinnable(object obj);
#if FEATURE_COMINTEROP
/// <summary>
/// Returns the HInstance for this module. Returns -1 if the module doesn't have
/// an HInstance. In Memory (Dynamic) Modules won't have an HInstance.
/// </summary>
public static IntPtr GetHINSTANCE(Module m)
{
if (m == null)
{
throw new ArgumentNullException(nameof(m));
}
if (m is RuntimeModule rtModule)
{
return GetHINSTANCE(rtModule.GetNativeHandle());
}
return (IntPtr)(-1);
}
[DllImport(JitHelpers.QCall, CharSet = CharSet.Unicode)]
private static extern IntPtr GetHINSTANCE(RuntimeModule m);
#endif // FEATURE_COMINTEROP
[MethodImpl(MethodImplOptions.InternalCall)]
internal static extern Exception GetExceptionForHRInternal(int errorCode, IntPtr errorInfo);
public static IntPtr AllocHGlobal(IntPtr cb)
{
// For backwards compatibility on 32 bit platforms, ensure we pass values between
// int.MaxValue and uint.MaxValue to Windows. If the binary has had the
// LARGEADDRESSAWARE bit set in the PE header, it may get 3 or 4 GB of user mode
// address space. It is remotely that those allocations could have succeeded,
// though I couldn't reproduce that. In either case, that means we should continue
// throwing an OOM instead of an ArgumentOutOfRangeException for "negative" amounts of memory.
UIntPtr numBytes;
#if BIT64
numBytes = new UIntPtr(unchecked((ulong)cb.ToInt64()));
#else // 32
numBytes = new UIntPtr(unchecked((uint)cb.ToInt32()));
#endif
IntPtr pNewMem = Interop.Kernel32.LocalAlloc(Interop.Kernel32.LMEM_FIXED, unchecked(numBytes));
if (pNewMem == IntPtr.Zero)
{
throw new OutOfMemoryException();
}
return pNewMem;
}
public static void FreeHGlobal(IntPtr hglobal)
{
if (!IsWin32Atom(hglobal))
{
if (IntPtr.Zero != Interop.Kernel32.LocalFree(hglobal))
{
ThrowExceptionForHR(GetHRForLastWin32Error());
}
}
}
public static IntPtr ReAllocHGlobal(IntPtr pv, IntPtr cb)
{
IntPtr pNewMem = Interop.Kernel32.LocalReAlloc(pv, cb, Interop.Kernel32.LMEM_MOVEABLE);
if (pNewMem == IntPtr.Zero)
{
throw new OutOfMemoryException();
}
return pNewMem;
}
#if FEATURE_COMINTEROP
/// <summary>
/// Converts the CLR exception to an HRESULT. This function also sets
/// up an IErrorInfo for the exception.
/// </summary>
[MethodImpl(MethodImplOptions.InternalCall)]
public static extern int GetHRForException(Exception e);
/// <summary>
/// Converts the CLR exception to an HRESULT. This function also sets
/// up an IErrorInfo for the exception.
/// This function is only used in WinRT and converts ObjectDisposedException
/// to RO_E_CLOSED
/// </summary>
[MethodImpl(MethodImplOptions.InternalCall)]
internal static extern int GetHRForException_WinRT(Exception e);
/// <summary>
/// Given a managed object that wraps an ITypeInfo, return its name.
/// </summary>
public static string GetTypeInfoName(ITypeInfo typeInfo)
{
if (typeInfo == null)
{
throw new ArgumentNullException(nameof(typeInfo));
}
typeInfo.GetDocumentation(-1, out string strTypeLibName, out _, out _, out _);
return strTypeLibName;
}
// This method is identical to Type.GetTypeFromCLSID. Since it's interop specific, we expose it
// on Marshal for more consistent API surface.
public static Type GetTypeFromCLSID(Guid clsid) => RuntimeType.GetTypeFromCLSIDImpl(clsid, null, throwOnError: false);
/// <summary>
/// Return the IUnknown* for an Object if the current context is the one
/// where the RCW was first seen. Will return null otherwise.
/// </summary>
public static IntPtr /* IUnknown* */ GetIUnknownForObject(object o)
{
return GetIUnknownForObjectNative(o, false);
}
[MethodImpl(MethodImplOptions.InternalCall)]
private static extern IntPtr /* IUnknown* */ GetIUnknownForObjectNative(object o, bool onlyInContext);
/// <summary>
/// Return the raw IUnknown* for a COM Object not related to current.
/// Does not call AddRef.
/// </summary>
[MethodImpl(MethodImplOptions.InternalCall)]
internal static extern IntPtr /* IUnknown* */ GetRawIUnknownForComObjectNoAddRef(object o);
/// <summary>
/// Return the IUnknown* representing the interface for the Object.
/// Object o should support Type T
/// </summary>
public static IntPtr /* IUnknown* */ GetComInterfaceForObject(object o, Type T)
{
return GetComInterfaceForObjectNative(o, T, false, true);
}
public static IntPtr GetComInterfaceForObject<T, TInterface>(T o) => GetComInterfaceForObject(o, typeof(TInterface));
/// <summary>
/// Return the IUnknown* representing the interface for the Object.
/// Object o should support Type T, it refer the value of mode to
/// invoke customized QueryInterface or not.
/// </summary>
public static IntPtr /* IUnknown* */ GetComInterfaceForObject(object o, Type T, CustomQueryInterfaceMode mode)
{
bool bEnableCustomizedQueryInterface = ((mode == CustomQueryInterfaceMode.Allow) ? true : false);
return GetComInterfaceForObjectNative(o, T, false, bEnableCustomizedQueryInterface);
}
[MethodImpl(MethodImplOptions.InternalCall)]
private static extern IntPtr /* IUnknown* */ GetComInterfaceForObjectNative(object o, Type t, bool onlyInContext, bool fEnalbeCustomizedQueryInterface);
[MethodImpl(MethodImplOptions.InternalCall)]
public static extern object GetObjectForIUnknown(IntPtr /* IUnknown* */ pUnk);
/// <summary>
/// Return a unique Object given an IUnknown. This ensures that you receive a fresh
/// object (we will not look in the cache to match up this IUnknown to an already
/// existing object). This is useful in cases where you want to be able to call
/// ReleaseComObject on a RCW and not worry about other active uses ofsaid RCW.
/// </summary>
[MethodImpl(MethodImplOptions.InternalCall)]
public static extern object GetUniqueObjectForIUnknown(IntPtr unknown);
/// <summary>
/// Return an Object for IUnknown, using the Type T.
/// Type T should be either a COM imported Type or a sub-type of COM imported Type
/// </summary>
[MethodImpl(MethodImplOptions.InternalCall)]
public static extern object GetTypedObjectForIUnknown(IntPtr /* IUnknown* */ pUnk, Type t);
[MethodImpl(MethodImplOptions.InternalCall)]
public static extern IntPtr CreateAggregatedObject(IntPtr pOuter, object o);
public static IntPtr CreateAggregatedObject<T>(IntPtr pOuter, T o)
{
return CreateAggregatedObject(pOuter, (object)o);
}
[MethodImpl(MethodImplOptions.InternalCall)]
public static extern void CleanupUnusedObjectsInCurrentContext();
[MethodImpl(MethodImplOptions.InternalCall)]
public static extern bool AreComObjectsAvailableForCleanup();
/// <summary>
/// Checks if the object is classic COM component.
/// </summary>
[MethodImpl(MethodImplOptions.InternalCall)]
public static extern bool IsComObject(object o);
#endif // FEATURE_COMINTEROP
public static IntPtr AllocCoTaskMem(int cb)
{
IntPtr pNewMem = Interop.Ole32.CoTaskMemAlloc(new UIntPtr((uint)cb));
if (pNewMem == IntPtr.Zero)
{
throw new OutOfMemoryException();
}
return pNewMem;
}
public static void FreeCoTaskMem(IntPtr ptr)
{
if (!IsWin32Atom(ptr))
{
Interop.Ole32.CoTaskMemFree(ptr);
}
}
public static IntPtr ReAllocCoTaskMem(IntPtr pv, int cb)
{
IntPtr pNewMem = Interop.Ole32.CoTaskMemRealloc(pv, new UIntPtr((uint)cb));
if (pNewMem == IntPtr.Zero && cb != 0)
{
throw new OutOfMemoryException();
}
return pNewMem;
}
internal static IntPtr AllocBSTR(int length)
{
IntPtr bstr = Interop.OleAut32.SysAllocStringLen(null, length);
if (bstr == IntPtr.Zero)
{
throw new OutOfMemoryException();
}
return bstr;
}
public static void FreeBSTR(IntPtr ptr)
{
if (!IsWin32Atom(ptr))
{
Interop.OleAut32.SysFreeString(ptr);
}
}
public static IntPtr StringToBSTR(string s)
{
if (s == null)
{
return IntPtr.Zero;
}
// Overflow checking
if (s.Length + 1 < s.Length)
{
throw new ArgumentOutOfRangeException(nameof(s));
}
IntPtr bstr = Interop.OleAut32.SysAllocStringLen(s, s.Length);
if (bstr == IntPtr.Zero)
{
throw new OutOfMemoryException();
}
return bstr;
}
public static string PtrToStringBSTR(IntPtr ptr)
{
return PtrToStringUni(ptr, (int)Interop.OleAut32.SysStringLen(ptr));
}
#if FEATURE_COMINTEROP
/// <summary>
/// Release the COM component and if the reference hits 0 zombie this object.
/// Further usage of this Object might throw an exception
/// </summary>
public static int ReleaseComObject(object o)
{
if (o == null)
{
// Match .NET Framework behaviour.
throw new NullReferenceException();
}
if (!(o is __ComObject co))
{
throw new ArgumentException(SR.Argument_ObjNotComObject, nameof(o));
}
return co.ReleaseSelf();
}
[MethodImpl(MethodImplOptions.InternalCall)]
internal static extern int InternalReleaseComObject(object o);
/// <summary>
/// Release the COM component and zombie this object.
/// Further usage of this Object might throw an exception
/// </summary>
public static int FinalReleaseComObject(object o)
{
if (o == null)
{
throw new ArgumentNullException(nameof(o));
}
if (!(o is __ComObject co))
{
throw new ArgumentException(SR.Argument_ObjNotComObject, nameof(o));
}
co.FinalReleaseSelf();
return 0;
}
[MethodImpl(MethodImplOptions.InternalCall)]
internal static extern void InternalFinalReleaseComObject(object o);
public static object GetComObjectData(object obj, object key)
{
if (obj == null)
{
throw new ArgumentNullException(nameof(obj));
}
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
if (!(obj is __ComObject co))
{
throw new ArgumentException(SR.Argument_ObjNotComObject, nameof(obj));
}
if (obj.GetType().IsWindowsRuntimeObject)
{
throw new ArgumentException(SR.Argument_ObjIsWinRTObject, nameof(obj));
}
// Retrieve the data from the __ComObject.
return co.GetData(key);
}
/// <summary>
/// Sets data on the COM object. The data can only be set once for a given key
/// and cannot be removed. This function returns true if the data has been added,
/// false if the data could not be added because there already was data for the
/// specified key.
/// </summary>
public static bool SetComObjectData(object obj, object key, object data)
{
if (obj == null)
{
throw new ArgumentNullException(nameof(obj));
}
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
if (!(obj is __ComObject co))
{
throw new ArgumentException(SR.Argument_ObjNotComObject, nameof(obj));
}
if (obj.GetType().IsWindowsRuntimeObject)
{
throw new ArgumentException(SR.Argument_ObjIsWinRTObject, nameof(obj));
}
// Retrieve the data from the __ComObject.
return co.SetData(key, data);
}
/// <summary>
/// This method takes the given COM object and wraps it in an object
/// of the specified type. The type must be derived from __ComObject.
/// </summary>
public static object CreateWrapperOfType(object o, Type t)
{
if (t == null)
{
throw new ArgumentNullException(nameof(t));
}
if (!t.IsCOMObject)
{
throw new ArgumentException(SR.Argument_TypeNotComObject, nameof(t));
}
if (t.IsGenericType)
{
throw new ArgumentException(SR.Argument_NeedNonGenericType, nameof(t));
}
if (t.IsWindowsRuntimeObject)
{
throw new ArgumentException(SR.Argument_TypeIsWinRTType, nameof(t));
}
if (o == null)
{
return null;
}
if (!o.GetType().IsCOMObject)
{
throw new ArgumentException(SR.Argument_ObjNotComObject, nameof(o));
}
if (o.GetType().IsWindowsRuntimeObject)
{
throw new ArgumentException(SR.Argument_ObjIsWinRTObject, nameof(o));
}
// Check to see if we have nothing to do.
if (o.GetType() == t)
{
return o;
}
// Check to see if we already have a cached wrapper for this type.
object Wrapper = GetComObjectData(o, t);
if (Wrapper == null)
{
// Create the wrapper for the specified type.
Wrapper = InternalCreateWrapperOfType(o, t);
// Attempt to cache the wrapper on the object.
if (!SetComObjectData(o, t, Wrapper))
{
// Another thead already cached the wrapper so use that one instead.
Wrapper = GetComObjectData(o, t);
}
}
return Wrapper;
}
public static TWrapper CreateWrapperOfType<T, TWrapper>(T o)
{
return (TWrapper)CreateWrapperOfType(o, typeof(TWrapper));
}
[MethodImpl(MethodImplOptions.InternalCall)]
private static extern object InternalCreateWrapperOfType(object o, Type t);
/// <summary>
/// check if the type is visible from COM.
/// </summary>
[MethodImplAttribute(MethodImplOptions.InternalCall)]
public static extern bool IsTypeVisibleFromCom(Type t);
[MethodImpl(MethodImplOptions.InternalCall)]
public static extern int /* HRESULT */ QueryInterface(IntPtr /* IUnknown */ pUnk, ref Guid iid, out IntPtr ppv);
[MethodImpl(MethodImplOptions.InternalCall)]
public static extern int /* ULONG */ AddRef(IntPtr /* IUnknown */ pUnk);
[MethodImpl(MethodImplOptions.InternalCall)]
public static extern int /* ULONG */ Release(IntPtr /* IUnknown */ pUnk);
[MethodImpl(MethodImplOptions.InternalCall)]
public static extern void GetNativeVariantForObject(object obj, /* VARIANT * */ IntPtr pDstNativeVariant);
public static void GetNativeVariantForObject<T>(T obj, IntPtr pDstNativeVariant)
{
GetNativeVariantForObject((object)obj, pDstNativeVariant);
}
[MethodImpl(MethodImplOptions.InternalCall)]
public static extern object GetObjectForNativeVariant(/* VARIANT * */ IntPtr pSrcNativeVariant);
public static T GetObjectForNativeVariant<T>(IntPtr pSrcNativeVariant)
{
return (T)GetObjectForNativeVariant(pSrcNativeVariant);
}
[MethodImpl(MethodImplOptions.InternalCall)]
public static extern object[] GetObjectsForNativeVariants(/* VARIANT * */ IntPtr aSrcNativeVariant, int cVars);
public static T[] GetObjectsForNativeVariants<T>(IntPtr aSrcNativeVariant, int cVars)
{
object[] objects = GetObjectsForNativeVariants(aSrcNativeVariant, cVars);
T[] result = null;
if (objects != null)
{
result = new T[objects.Length];
Array.Copy(objects, 0, result, 0, objects.Length);
}
return result;
}
/// <summary>
/// <para>Returns the first valid COM slot that GetMethodInfoForSlot will work on
/// This will be 3 for IUnknown based interfaces and 7 for IDispatch based interfaces. </para>
/// </summary>
[MethodImpl(MethodImplOptions.InternalCall)]
public static extern int GetStartComSlot(Type t);
/// <summary>
/// <para>Returns the last valid COM slot that GetMethodInfoForSlot will work on. </para>
/// </summary>
[MethodImpl(MethodImplOptions.InternalCall)]
public static extern int GetEndComSlot(Type t);
public static object BindToMoniker(string monikerName)
{
CreateBindCtx(0, out IBindCtx bindctx);
MkParseDisplayName(bindctx, monikerName, out _, out IMoniker pmoniker);
BindMoniker(pmoniker, 0, ref IID_IUnknown, out object obj);
return obj;
}
[DllImport(Interop.Libraries.Ole32, PreserveSig = false)]
private static extern void CreateBindCtx(uint reserved, out IBindCtx ppbc);
[DllImport(Interop.Libraries.Ole32, PreserveSig = false)]
private static extern void MkParseDisplayName(IBindCtx pbc, [MarshalAs(UnmanagedType.LPWStr)] string szUserName, out uint pchEaten, out IMoniker ppmk);
[DllImport(Interop.Libraries.Ole32, PreserveSig = false)]
private static extern void BindMoniker(IMoniker pmk, uint grfOpt, ref Guid iidResult, [MarshalAs(UnmanagedType.Interface)] out object ppvResult);
[MethodImpl(MethodImplOptions.InternalCall)]
public static extern void ChangeWrapperHandleStrength(object otp, bool fIsWeak);
[MethodImpl(MethodImplOptions.InternalCall)]
internal static extern void InitializeWrapperForWinRT(object o, ref IntPtr pUnk);
#if FEATURE_COMINTEROP_WINRT_MANAGED_ACTIVATION
[MethodImpl(MethodImplOptions.InternalCall)]
internal static extern void InitializeManagedWinRTFactoryObject(object o, RuntimeType runtimeClassType);
#endif
/// <summary>
/// Create activation factory and wraps it with a unique RCW.
/// </summary>
[MethodImpl(MethodImplOptions.InternalCall)]
internal static extern object GetNativeActivationFactory(Type type);
#endif // FEATURE_COMINTEROP
[MethodImpl(MethodImplOptions.InternalCall)]
internal static extern Delegate GetDelegateForFunctionPointerInternal(IntPtr ptr, Type t);
[MethodImpl(MethodImplOptions.InternalCall)]
internal static extern IntPtr GetFunctionPointerForDelegateInternal(Delegate d);
}
}
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