cairoSurfaceGetUserData

[<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>

[<code><a rd-options="" href="/link/CairoUserDataKey?package=RGtk2&version=2.20.31" data-mini-rdoc="RGtk2::CairoUserDataKey">CairoUserDataKey</a></code>]  the the <code><a rd-options="" href="/link/CairoUserDataKey?package=RGtk2&version=2.20.31" data-mini-rdoc="RGtk2::CairoUserDataKey">CairoUserDataKey</a></code> the user data was
attached to

<code>key</code>

Return user data previously attached to <code>surface</code> using the specified
key.  If no user data has been attached with the given key this
function returns <code>NULL</code>.

internal

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

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cairoSurfaceGetUserData: cairoSurfaceGetUserData

Description

Usage

Arguments

Value