cairoMask {RGtk2} | R Documentation

## cairoMask

### Description

A drawing operator that paints the current source using the alpha channel of `pattern` as a mask. (Opaque areas of `pattern` are painted with the source, transparent areas are not painted.)

### Usage

    cairoMask(cr, pattern)

### Arguments

``cr`` | [`Cairo`] a cairo context
``pattern`` | [`CairoPattern`] a `CairoPattern`

### Author(s)

Derived by RGtkGen from GTK+ documentation

[Package RGtk2 version 2.20.40 Index]