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Marshal::PtrToStructure<T> Method (IntPtr)

[Supported in the .NET Framework 4.5.1 and later versions]

Marshals data from an unmanaged block of memory to a newly allocated managed object of the type specified by a generic type parameter.

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

generic<typename T>
static T PtrToStructure(
	IntPtr ptr

Type Parameters


The type of the object to which the data is to be copied. This must be a formatted class or a structure.


Type: System::IntPtr

A pointer to an unmanaged block of memory.

Return Value

Type: T
A managed object that contains the data that the ptr parameter points to.


The layout of T is not sequential or explicit.


The class specified by T does not have an accessible default constructor.

PtrToStructure<T>(IntPtr) is often necessary in COM interop and platform invoke when structure parameters are represented as System::IntPtr values. You can pass a value type to this method overload.

.NET Framework

Supported in: 4.5.1

.NET for Windows Phone apps

Supported in: Windows Phone 8.1

  • SecurityCriticalAttribute 

    requires full trust for the immediate caller. This member cannot be used by partially trusted or transparent code.

Windows Phone 8.1

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

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