cairoMaskSurface

[<code><a rd-options="" href="/link/Cairo?package=RGtk2&version=2.20.31" data-mini-rdoc="RGtk2::Cairo">Cairo</a></code>]  a cairo context

<code>cr</code>

[<code><a rd-options="" href="/link/CairoSurface?package=RGtk2&version=2.20.31" data-mini-rdoc="RGtk2::CairoSurface">CairoSurface</a></code>]  a <code><a rd-options="" href="/link/CairoSurface?package=RGtk2&version=2.20.31" data-mini-rdoc="RGtk2::CairoSurface">CairoSurface</a></code>

<code>surface</code>

[numeric]  X coordinate at which to place the origin of <code>surface</code>

<code>surface.x</code>

[numeric]  Y coordinate at which to place the origin of <code>surface</code>

<code>surface.y</code>

A drawing operator that paints the current source
using the alpha channel of <code>surface</code> as a mask. (Opaque
areas of <code>surface</code> are painted with the source, transparent
areas are not painted.)

internal

Facilities in the R language for programming
graphical interfaces using Gtk, the Gimp Tool Kit.

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cairoMaskSurface: cairoMaskSurface

Description

Usage

Arguments