gtkWidgetIsComposited {RGtk2} | R Documentation

## gtkWidgetIsComposited

### Description

Whether `widget` can rely on having its alpha channel drawn correctly. On X11 this function returns whether a compositing manager is running for `widget`'s screen.

### Usage

    gtkWidgetIsComposited(object)

### Arguments

``object`` | a `GtkWidget`

### Details

Please note that the semantics of this call will change in the future if used on a widget that has a composited window in its hierarchy (as set by `gdkWindowSetComposited`). Since 2.10

### Value

[logical] `TRUE` if the widget can rely on its alpha channel being drawn correctly.

### Author(s)

Derived by RGtkGen from GTK+ documentation

[Package RGtk2 version 2.20.36.3 Index]