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Marshal.GetUnmanagedThunkForManagedMethodPtr Method

.NET Framework 3.5

Other Versions

NOTE: This API is now obsolete.

Gets a pointer to a thunk that marshals a call from unmanaged to managed code.

Namespace: System.Runtime.InteropServices
Assembly: mscorlib (in mscorlib.dll)

Syntax

C++

JScript

'Declaration
<ObsoleteAttribute("The GetUnmanagedThunkForManagedMethodPtr method has been deprecated and will be removed in a future release.",  _
	False)> _
<SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags := SecurityPermissionFlag.UnmanagedCode)> _
Public Shared Function GetUnmanagedThunkForManagedMethodPtr ( _
	pfnMethodToWrap As IntPtr, _
	pbSignature As IntPtr, _
	cbSignature As Integer _
) As IntPtr
'Usage
Dim pfnMethodToWrap As IntPtr 
Dim pbSignature As IntPtr 
Dim cbSignature As Integer 
Dim returnValue As IntPtr 

returnValue = Marshal.GetUnmanagedThunkForManagedMethodPtr(pfnMethodToWrap, _
	pbSignature, cbSignature)

Parameters

pfnMethodToWrap: Type: System.IntPtr
A pointer to the method to marshal.

pbSignature: Type: System.IntPtr
A pointer to the method signature.

cbSignature: Type: System.Int32
The number of bytes in pbSignature.

Return Value

Type: System.IntPtr
A pointer to the thunk that will marshal a call from pfnMethodToWrap.

Remarks

GetUnmanagedThunkForManagedMethodPtr is exposed for compiler support only.

Note:
This method uses SecurityAction.LinkDemand to prevent it from being called from untrusted code; only the immediate caller is required to have SecurityPermissionAttribute.UnmanagedCode permission. If your code can be called from partially trusted code, do not pass user input to Marshal class methods without validation. For important limitations on using the LinkDemand member, see Demand vs. LinkDemand.

Note:

This method uses SecurityAction.LinkDemand to prevent it from being called from untrusted code; only the immediate caller is required to have SecurityPermissionAttribute.UnmanagedCode permission. If your code can be called from partially trusted code, do not pass user input to Marshal class methods without validation. For important limitations on using the LinkDemand member, see Demand vs. LinkDemand.

.NET Framework Security

SecurityPermission
for permission to call unmanaged code.
Associated enumeration: UnmanagedCode Security action: LinkDemand

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Version Information

.NET Framework

Supported in: 1.1, 1.0
Obsolete (compiler warning) in 3.5
Obsolete (compiler warning) in 3.5 SP1
Obsolete (compiler warning) in 3.0
Obsolete (compiler warning) in 3.0 SP1
Obsolete (compiler warning) in 3.0 SP2
Obsolete (compiler warning) in 2.0
Obsolete (compiler warning) in 2.0 SP1
Obsolete (compiler warning) in 2.0 SP2

Reference

Marshal Class

Marshal Members

System.Runtime.InteropServices Namespace

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