This object is related to: Browser.GetImage() and RenderHandler.OnPaint().
Table of contents:
Get int pointer to the void* buffer.
Converts the void* buffer to string. In Py2 returns 'str' type, in Py3 returns 'bytes' type.
origin may be one of: "top-left", "bottom-left".
mode may be one of: "bgra", "rgba".
