gtkWidgetSetChildVisible {RGtk2} | R Documentation

## gtkWidgetSetChildVisible

### Description

Sets whether `widget` should be mapped along with its when its parent is mapped and `widget` has been shown with `gtkWidgetShow`.

### Usage

    gtkWidgetSetChildVisible(object, is.visible)

### Arguments

``object`` | a `GtkWidget`
``is.visible`` | if `TRUE`, `widget` should be mapped along with its parent.

### Details

The child visibility can be set for widget before it is added to a container with `gtkWidgetSetParent`, to avoid mapping children unnecessary before immediately unmapping them. However it will be reset to its default state of `TRUE` when the widget is removed from a container.

Note that changing the child visibility of a widget does not queue a resize on the widget. Most of the time, the size of a widget is computed from all visible children, whether or not they are mapped. If this is not the case, the container can queue a resize itself.

This function is only useful for container implementations and never should be called by an application.

### Author(s)

Derived by RGtkGen from GTK+ documentation

[Package RGtk2 version 2.20.40 Index]