set_decoration_layout

Sets the decoration layout for this header bar.

This property overrides the [property@Gtk.Settings:gtk-decoration-layout] setting.

There can be valid reasons for overriding the setting, such as a header bar design that does not allow for buttons to take room on the right, or only offers room for a single close button. Split header bars are another example for overriding the setting.

The format of the string is button names, separated by commas. A colon separates the buttons that should appear on the left from those on the right. Recognized button names are minimize, maximize, close and icon (the window icon).

For example, “icon:minimize,maximize,close” specifies an icon on the left, and minimize, maximize and close buttons on the right.

Parameters:

this	a `GtkHeaderBar`
layout	a decoration layout, or null to unset the layout