Warning
gtk_icon_set_render_icon_pixbuf has been deprecated since version 3.10 and should not be used in newly-written code. Use GtkIconTheme instead.
Renders an icon using gtk_render_icon_pixbuf(). In most cases,
gtk_widget_render_icon_pixbuf() is better, since it automatically provides
most of the arguments from the current widget settings. This
function never returns NULL; if the icon can't be rendered
(perhaps because an image file fails to load), a default "missing
image" icon will be returned instead.
Warning gtk_icon_set_render_icon_pixbuf has been deprecated since version 3.10 and should not be used in newly-written code. Use GtkIconTheme instead. Renders an icon using gtk_render_icon_pixbuf(). In most cases, gtk_widget_render_icon_pixbuf() is better, since it automatically provides most of the arguments from the current widget settings. This function never returns NULL; if the icon can't be rendered (perhaps because an image file fails to load), a default "missing image" icon will be returned instead.