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    CanvasRenderingContext2D.drawWidgetAsOnScreen()

    Non-standard
    This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

    The non-standard and internal only CanvasRenderingContext2D.drawWidgetAsOnScreen() method of the Canvas 2D API renders the root widget of a window into the canvas. Unlike drawWindow(), this API uses the operating system to snapshot the widget on-screen, rather than reading from Gecko's own compositor.

    This API cannot be used by Web content. It is only supported on Windows, only on widgets that use OMTC, and only from within the chrome process.

    SyntaxEdit

    void ctx.drawWidgetAsOnScreen(window);

    Parameters

    window
    The Window to render.

    SpecificationsEdit

    Not part of any current specification or draft. This is a non-standard and internal only API.

    Browser compatibilityEdit

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
    Basic support Not supported 41 (41) Not supported Not supported Not supported

    See alsoEdit

    Document Tags and Contributors

    Tags: 
     Contributors to this page: fscholz
     Last updated by: fscholz,