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UnmanagedMemoryStream.Initialize Method (Byte*, Int64, Int64, FileAccess)

Initializes a new instance of the UnmanagedMemoryStream class by using a pointer to an unmanaged memory location.

This API is not CLS-compliant. 

Namespace:  System.IO
Assembly:  mscorlib (in mscorlib.dll)

[CLSCompliantAttribute(false)]
protected void Initialize(
	byte* pointer,
	long length,
	long capacity,
	FileAccess access
)

Parameters

pointer
Type: System.Byte*

A pointer to an unmanaged memory location.

length
Type: System.Int64

The length of the memory to use.

capacity
Type: System.Int64

The total amount of memory assigned to the stream.

access
Type: System.IO.FileAccess

One of the FileAccess values.

ExceptionCondition
SecurityException

The user does not have the required permission.

ArgumentNullException

The pointer value is null.

ArgumentOutOfRangeException

The length value is less than zero.

- or -

The capacity value is less than zero.

- or -

The length value is large enough to cause an overflow.

This method is equivalent to the UnmanagedMemoryStream constructor. It supports methods that need to initialize the pointer before setting stream variables and, therefore, cannot call the parameterized constructor. Such methods should use the default constructor, UnmanagedMemoryStream(), initialize the pointer, and then invoke the Initialize method.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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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