gtkWindowSetOpacity {RGtk2} | R Documentation

## gtkWindowSetOpacity

### Description

Request the windowing system to make `window` partially transparent, with opacity 0 being fully transparent and 1 fully opaque. (Values of the opacity parameter are clamped to the [0,1] range.) On X11 this has any effect only on X screens with a compositing manager running. See `gtkWidgetIsComposited`. On Windows it should work always.

### Usage

    gtkWindowSetOpacity(object, opacity)

### Arguments

``object`` | a `GtkWindow`
``opacity`` | desired opacity, between 0 and 1

### Details

Note that setting a window's opacity after the window has been shown causes it to flicker once on Windows. Since 2.12

### Author(s)

Derived by RGtkGen from GTK+ documentation

[Package RGtk2 version 2.20.40 Index]