The WindowInfo type exposes the following members.
Ex window style
Set to true to enable the ability to issue BeginFrame requests from the client application by calling SendExternalBeginFrame.
Parent window handle
Set to true to enable shared textures for windowless rendering. Only valid if WindowlessRenderingEnabled is also set to true. Currently only supported on Windows (D3D11). This feature is experimental and has many bugs at the moment.
Handle for the new browser window. Only used with windowed rendering.
Set to true to create the browser using windowless (off-screen) rendering. No window will be created for the browser and all rendering will occur via the IRenderHandler interface. The ParentWindowHandle value will be used to identify monitor info and to act as the parent window for dialogs, context menus, etc. If |ParentWindowHandle is not provided then the main screen monitor will be used and some functionality that requires a parent window may not function correctly. In order to create windowless browsers the CefSettings.WindowlessRenderingEnabled value must be set to true. Transparent painting is enabled by default but can be disabled by setting BackgroundColor to an opaque value.