cairoMaskSurface

[<code><a href="/link/Cairo?package=RGtk2&version=2.20.1" rd-options="" data-mini-rdoc="RGtk2::Cairo">Cairo</a></code>]  a cairo context

<verb>cr</verb>

[<code><a href="/link/CairoSurface?package=RGtk2&version=2.20.1" rd-options="" data-mini-rdoc="RGtk2::CairoSurface">CairoSurface</a></code>]  a <code><a href="/link/CairoSurface?package=RGtk2&version=2.20.1" rd-options="" data-mini-rdoc="RGtk2::CairoSurface">CairoSurface</a></code>

<verb>surface</verb>

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

<verb>surface.x</verb>

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

<verb>surface.y</verb>

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.

cairoMaskSurface: cairoMaskSurface

Description

Usage

Arguments