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A render node controlling the opacity of its single child node.

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Index

Constructors

Properties

name: string

Methods

  • Draw the contents of node to the given cairo context.

    Typically, you'll use this function to implement fallback rendering of GskRenderNodes on an intermediate Cairo context, instead of using the drawing context associated to a [classGdk.Surface]'s rendering buffer.

    For advanced nodes that cannot be supported using Cairo, in particular for nodes doing 3D operations, this function may fail.

    Parameters

    Returns void

  • get_opacity(): number
  • Serializes the node for later deserialization via gsk_render_node_deserialize(). No guarantees are made about the format used other than that the same version of GTK will be able to deserialize the result of a call to gsk_render_node_serialize() and gsk_render_node_deserialize() will correctly reject files it cannot open that were created with previous versions of GTK.

    The intended use of this functions is testing, benchmarking and debugging. The format is not meant as a permanent storage format.

    Returns Bytes

  • unref(): void
  • write_to_file(filename: string): boolean
  • This function is equivalent to calling [methodGsk.RenderNode.serialize] followed by [funcGLib.file_set_contents].

    See those two functions for details on the arguments.

    It is mostly intended for use inside a debugger to quickly dump a render node to a file for later inspection.

    Parameters

    • filename: string

      the file to save it to.

    Returns boolean

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