WindowsRuntimeBufferExtensions.AsBuffer Method (array<Byte>[]()[], Int32, Int32, Int32)
For apps that target Windows Phone OS 7.0 and 7.1, do not use any members of this type in your app. If you do, your code will throw a MethodAccessException. This type is security-critical, which restricts it to internal use by the .NET Framework for Windows Phone class library.
[SECURITY CRITICAL]
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Returns a Windows.Storage.Streams.IBuffer interface that represents a range of bytes in the specified byte array. Optionally sets the Length property of the IBuffer to a value that is less than the capacity.
This API is not CLS-compliant.
Namespace: System.Runtime.InteropServices.WindowsRuntime
Assembly: System.Runtime.WindowsRuntime (in System.Runtime.WindowsRuntime.dll)
Syntax
<CLSCompliantAttribute(False)> _
<ExtensionAttribute> _
Public Shared Function AsBuffer ( _
source As Byte(), _
offset As Integer, _
length As Integer, _
capacity As Integer _
) As IBuffer
[CLSCompliantAttribute(false)]
public static IBuffer AsBuffer(
this byte[] source,
int offset,
int length,
int capacity
)
Parameters
- source
Type: array<System..::.Byte>[]()[]
The array that contains the range of bytes that is represented by the IBuffer.
- offset
Type: System..::.Int32
The offset in source where the range begins.
- length
Type: System..::.Int32
The value of the Length property of the IBuffer.
- capacity
Type: System..::.Int32
The size of the range that is represented by the IBuffer. The Capacity property of the IBuffer is set to this value.
Return Value
Type: Windows.Storage.Streams..::.IBuffer
An IBuffer interface that represents the specified range of bytes in source and that has the specified Length property value.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type . When you use instance method syntax to call this method, omit the first parameter.
Version Information
Windows Phone OS
Supported in: 8.1, 8.0