# Record TCefv8BackingStore

Description
Fields

## Unit

uCEFTypes

## Declaration

`type TCefv8BackingStore = record`

## Description

Structure representing a V8 ArrayBuffer backing store. The backing store holds the memory that backs an ArrayBuffer. It must be created on a thread with a valid V8 isolate (renderer main thread or WebWorker thread). Once created, the data() pointer can be safely read/written from any thread. This allows expensive operations like memcpy to be performed on a background thread before creating the ArrayBuffer on the V8 thread.

The backing store is consumed when passed to cef_v8_value_t::cef_v8_value_create_array_buffer_from_backing_store(), after which is_valid() returns false (0).

NOTE: This struct is allocated DLL-side.

Implemented by ICefv8BackingStore.

<see href="https://bitbucket.org/chromiumembedded/cef/src/master/include/capi/cef_v8_capi.h">CEF source file: /include/capi/cef_v8_capi.h (cef_v8_backing_store_t))

## Overview

### Fields

Public | `base: TCefBaseRefCounted;`
Public | `data: function(self: PCefv8BackingStore): Pointer; stdcall;`
Public | `byte_length: function(self: PCefv8BackingStore): NativeUInt; stdcall;`
Public | `is_valid: function(self: PCefv8BackingStore): integer; stdcall;`

## Description

### Fields

Public | `base: TCefBaseRefCounted;`
This item has no description.

Public | `data: function(self: PCefv8BackingStore): Pointer; stdcall;`
This item has no description.

Public | `byte_length: function(self: PCefv8BackingStore): NativeUInt; stdcall;`
This item has no description.

Public | `is_valid: function(self: PCefv8BackingStore): integer; stdcall;`
This item has no description.

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