gdkScreenGetRgbaColormap: gdkScreenGetRgbaColormap

Description Usage Arguments Details Value Author(s)

View source: R/gdkFuncs.R

Description

Gets a colormap to use for creating windows or pixmaps with an alpha channel. The windowing system on which GTK+ is running may not support this capability, in which case NULL will be returned. Even if a non-NULL value is returned, its possible that the window's alpha channel won't be honored when displaying the window on the screen: in particular, for X an appropriate windowing manager and compositing manager must be running to provide appropriate display.

Usage

1

Arguments

object

a GdkScreen.

Details

This functionality is not implemented in the Windows backend.

For setting an overall opacity for a top-level window, see gdkWindowSetOpacity. Since 2.8

Value

[GdkColormap] a colormap to use for windows with an alpha channel or NULL if the capability is not available. [ transfer none ]

Author(s)

Derived by RGtkGen from GTK+ documentation


RGtk2 documentation built on June 12, 2018, 5:06 p.m.