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interface ICoreWebView2Environment12

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Note

This reference is no longer being maintained. For the latest API reference, see WebView2 API Reference.

interface ICoreWebView2Environment12
  : public ICoreWebView2Environment11

A continuation of the ICoreWebView2Environment interface for creating shared buffer object.

Summary

Members Descriptions
CreateSharedBuffer Create a shared memory based buffer with the specified size in bytes.

Applies to

Product Introduced
WebView2 Win32 N/A
WebView2 Win32 Prerelease 1.0.1671

Members

CreateSharedBuffer

Create a shared memory based buffer with the specified size in bytes.

public HRESULT CreateSharedBuffer(UINT64 size, ICoreWebView2SharedBuffer ** shared_buffer)

The buffer can be shared with web contents in WebView by calling PostSharedBufferToScript on CoreWebView2 or CoreWebView2Frame object. Once shared, the same content of the buffer will be accessible from both the app process and script in WebView. Modification to the content will be visible to all parties that have access to the buffer. The shared buffer is presented to the script as ArrayBuffer. All JavaScript APIs that work for ArrayBuffer including Atomics APIs can be used on it. There is currently a limitation that only size less than 2GB is supported.