a #GtkStyleContext
icon size (#GtkIconSize). A size of (GtkIconSize)-1 means render at the size of the source and don’t scale.
the window scale to render for
#GdkWindow to optimize drawing for, or %NULL
a #cairo_surface_t to be displayed
Deprecated: Use #GtkIconTheme instead.
3.10
Renders an icon using gtk_render_icon_pixbuf() and converts it to a cairo surface.
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.