public Pixbuf? render_icon (string stock_id, IconSize size, string? detail)
Warning: render_icon is deprecated since 3.0.
A convenience function that uses the theme settings for this to look up
stock_id and render it
to a pixbuf.
Use render_icon_pixbuf instead.
stock_id should be a stock icon ID such as OPEN or
size should be a size such as
detail should be a string that identifies the widget or code
doing the rendering, so that theme engines can special-case rendering for that widget or code.
The pixels in the returned Pixbuf are shared with the rest of the application and should not be modified. The pixbuf should be freed after use with unref.
a stock ID
a stock size (IconSize). A size of `(GtkIconSize)-1` means render at the size of the source and don’t scale (if there are multiple source sizes, GTK+ picks one of the available sizes).
render detail to pass to theme engine
a new pixbuf, or null if the stock ID wasn’t known