Sets the icon for applications that are launched with this context.
Window Managers can use this information when displaying startup notification.
See also gdk_app_launch_context_set_icon_name().
a #GIcon, or %NULL
2.14
See Implementation
Sets the icon for applications that are launched with this context.
Window Managers can use this information when displaying startup notification.
See also gdk_app_launch_context_set_icon_name().