gdkPixbufAddAlpha

A <code><a rd-options="" href="/link/GdkPixbuf?package=RGtk2&version=2.20.31" data-mini-rdoc="RGtk2::GdkPixbuf">GdkPixbuf</a></code>.

<code>object</code>

Whether to set a color to zero opacity.  If this
is <code>FALSE</code>, then the (<code>r</code>, <code>g</code>, <code>b</code>) arguments will be ignored.

<code>substitute.color</code>

<code>r</code>

<code>g</code>

<code>b</code>

Takes an existing pixbuf and adds an alpha channel to it.
If the existing pixbuf already had an alpha channel, the channel
values are copied from the original; otherwise, the alpha channel
is initialized to 255 (full opacity).

internal

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

Michael Lawrence

RGtk2

R bindings for Gtk 2.8.0 and above

gdkPixbufAddAlpha function

A <code><a rd-options='' href='GdkPixbuf'>GdkPixbuf</a></code>.

gdkPixbufAddAlpha: gdkPixbufAddAlpha

Description

Usage

Arguments

Value

Details